Latest revision as of 15:21, 4 April 2022

Home * Tournaments and Matches * TCEC * Season 21
< Prev Next >

TCEC Logo ^[1]

TCEC Season 21,
the Top Chess Engine Championship (TCEC) Season 21 from May 10 until August 07, 2021. Stockfish 14_202107131735 won the Superfinal versus LCZero 0.28-dev+_69626.

Superfinal :	Stockfish 14_202107131735	-	LCZero 0.28-dev+_69626	56-44

Participants

^[2] ^[3]

Engine	CC	Authors	Divisions and Ranking
Engine	CC	Authors	Q	4	3	2	1	P	Finals
AllieStein	US/ IN/++	Adam Treat, Mark Jordan, Ankan Banerjee, Lc0 team						5
Amoeba	FR	Richard Delorme	7	6
Arasan	US	Jon Dart				12
Bagatur	BG	Krasimir Topchiyski	11
Berserk	US	Jay Honnold	9
Booot	UA	Alex Morozov	3	1	2	5
Cheese	FR	Patrice Duhamel	13
ChessFighter	*	Alexander Lim		12
Cheng	CZ	Martin Sedlak	4	9
ClassicAra	DE	Johannes Czech et al.	2	4	4	10
Combusken	PL	Marcin Henryk Bartkowiak			8
Defenchess	TR	Can Cetin, Dogac Eldenk				4
Drofa	RU	Alexander Litov	8	11
Ethereal	US	Andrew Grant					2	8
Francesca	UK	Tom King	14
Fritz	DE	Frank Schneider				3
Halogen	AU	Kieren Pearson		2	3	7
Igel	UA	Volodymyr Shcherbyna					1	7
Invictus	PH	Edsel Apostol	10
Koivisto	FI/DE	Kim Kåhre, Finn Eggers	1	3	7
KomodoDragon	US	Don Dailey, Larry Kaufman, Mark Lefler et al.						3	3
LCZero	BE/CA/ CH/IN/ AU++	Gian-Carlo Pascutto, Gary Linscott, Alexander Lyashuk, Ankan Banerjee, Gareth Pearce et al.						2	2
Marvin	SE	Martin Danielsson			9
Minic	FR	Vivien Clauzon			1	6
Monolith	IT	Jonas Mayr		5
Mr_Bob	CA	Vincent Yu		10
Nemorino	DE	Christian Günther				2	8
Nirvana	US	Thomas Kolarik	6	8
Pedone	IT	Fabio Gobbato				1	5
Pirarucu	BR	Raoni Campos			10
rofChade	NL	Ronald Friederich					7
RubiChess	DE	Andreas Matthies					3
ScorpioNN	ET	Daniel Shawul						6
Seer	US	Connor McMonigle				11
SlowChess	US	Jonathan Kreuzer					4
Stash	FR	Morgan Houppin	5	7
Stockfish	NO/IT/ FI/CA	Tord Romstad, Marco Costalba, Joona Kiiski, Gary Linscott et al.						1	1
Stoofvlees	BE	Gian-Carlo Pascutto						4	4
tomitankChess	HU	Tamás Kuzmics	12
Topple	GB	Vincent Tang			11
Tucano	BR	Alcides Schulz			6
Vajolet2	IT	Marco Belli				8
Wasp	US	John Stanback			5
Weiss	NO	Terje Kirstihagen			12
Winter	CH	Jonathan Rosenthal				9
Xiphos	RS	Milos Tatarevic					6

CC Country Codes

Divisions

Qualification

< Prev Next >
Qualification League, May 10 - May 19, 2021, timecontrol 30' + 5'' ^[4]

#	Engine	Ko	Cl	Bo	Ce	St	Ni	Am	Dr	Be	In	Ba	To	Ch	Fr	P26
1	Koivisto 4.44	x	½ ½	1 1	1 ½	½ 1	½ 0	1 ½	½ ½	1 ½	1 ½	1 1	1 1	1 1	1 1	20
2	ClassicAra 0.9.2.post1	½ ½	x	0 ½	½ ½	½ ½	½ ½	1 1	1 1	1 1	1 ½	1 ½	1 ½	1 1	1 1	19
3	Booot 6.5	0 0	1 ½	x	½ 1	½ ½	½ ½	½ 1	1 ½	½ 1	0 1	1 1	1 1	1 1	1 ½	18
4	Cheng 4.41	0 ½	½ ½	½ 0	x	½ ½	0 1	1 1	½ ½	½ 1	½ 1	1 ½	1 1	1 1	1 1	17½
5	Stash 30	½ 0	½ ½	½ ½	½ ½	x	1 1	½ ½	½ ½	½ ½	0 ½	1 ½	1 1	1 1	1 ½	16
6	Nirvana 2.5	½ 1	½ ½	½ ½	1 0	0 0	x	0 0	0 1	½ ½	1 ½	½ 1	1 1	1 1	1 1	15½
7	Amoeba 3.3.1	0 ½	0 0	½ 0	0 0	½ ½	1 1	x	1 0	½ ½	½ 1	1 1	1 1	0 1	1 1	14½
8	Drofa 3.0.0	½ ½	0 0	0 ½	½ ½	½ ½	1 0	0 1	x	½ ½	0 1	1 1	½ ½	1 ½	½ 1	13½
9	Berserk 4.2.0-dev	0 ½	0 0	½ 0	½ 0	½ ½	½ ½	½ ½	½ ½	x	1 ½	1 ½	1 ½	½ 1	½ 1	13
10	Invictus r324	0 ½	0 ½	1 0	½ 0	1 ½	0 ½	½ 0	1 0	0 ½	x	½ ½	1 1	1 ½	1 1	13
11	Bagatur 2.2c	0 0	0 ½	0 0	0 ½	0 ½	½ 0	0 0	0 0	0 ½	½ ½	x	1 ½	½ 1	1 0	7½
12	tomitankChess 5.0	0 0	0 ½	0 0	0 0	0 0	0 0	0 0	½ ½	0 ½	0 0	0 ½	x	½ 1	½ 1	5½
13	Cheese 2.2	0 0	0 0	0 0	0 0	0 0	0 0	1 0	0 ½	½ 0	0 ½	½ 0	½ 0	x	1 ½	5
14	Francesca 0.30a	0 0	0 0	0 ½	0 0	0 ½	0 0	0 0	½ 0	½ 0	0 0	0 1	½ 0	0 ½	x	4

League 4

< Prev Next >
League 4, May 19 - May 25, 2021, timecontrol 30' + 5'' ^[5].

#	Engine	Bo	Ha	Ko	Cl	Mo	Am	St	Ni	Ch	Mr	Dr	Ce	P22
1	Booot 6.5	x	½ ½	1 ½	½ ½	1 1	1 1	1 1	½ 1	½ 1	1 1	1 1	½ ½	17½
2	Halogen 10.11.1	½ ½	x	1 ½	½ ½	½ ½	1 1	1 1	1 ½	½ ½	1 1	1 ½	1 1	16½
3	Koivisto 4.44	0 ½	0 ½	x	0 ½	½ 1	½ 1	½ ½	1 1	1 1	1 ½	1 1	1 ½	14½
4	ClassicAra 0.9.2.post1	½ ½	½ ½	1 ½	x	½ ½	½ ½	1 0	½ 1	1 1	1 ½	1 0	½ 1	14
5	Monolith 20210221	0 0	½ ½	½ 0	½ ½	x	½ ½	½ 1	1 ½	½ 0	1 ½	1 ½	1 1	12
6	Amoeba 3.3.1	0 0	0 0	½ 0	½ ½	½ ½	x	½ ½	0 ½	0 1	½ ½	1 1	1 1	10
7	Stash 30	0 0	0 0	½ ½	0 1	½ 0	½ ½	x	½ ½	½ 1	1 ½	½ ½	½ ½	9½
8	Nirvana 2.5	½ 0	0 ½	0 0	½ 0	0 ½	1 ½	½ ½	x	½ ½	½ 0	0 1	1 ½	8½
9	Cheng 4.41	½ 0	½ ½	0 0	0 0	½ 1	1 0	½ 0	½ ½	x	½ ½	½ ½	½ ½	8½
10	Mr_Bob dev-20210331	0 0	0 0	0 ½	0 ½	0 ½	½ ½	0 ½	½ 1	½ ½	x	½ ½	½ ½	7½
11	Drofa 3.0.0	0 0	0 ½	0 0	0 1	0 ½	0 0	½ ½	1 0	½ ½	½ ½	x	½ ½	7
12	ChessFighter 3.8.1	½ ½	0 0	0 ½	½ 0	0 0	0 0	½ ½	0 ½	½ ½	½ ½	½ ½	x	6½

League 3

< Prev Next >
Season 21, League 3, May 25 - May 30, 2021, timecontrol 30' + 5'' ^[6].

#	Engine	Mi	Bo	Ha	Cl	Wa	Tu	Ko	Co	Ma	Pi	To	We	P22
1	Minic 3.06	x	½ ½	½ ½	½ ½	½ 1	½ 1	1 ½	½ ½	½ ½	½ 1	1 ½	1 1	14½
2	Booot 6.5	½ ½	x	½ ½	½ ½	½ 1	1 ½	½ ½	½ ½	1 ½	1 1	½ ½	1 ½	14
3	Halogen 10.11.1	½ ½	½ ½	x	0 1	½ ½	½ ½	½ ½	½ ½	½ ½	½ ½	½ 1	1 1	12½
4	ClassicAra 0.9.2.post1	½ ½	½ ½	1 0	x	½ ½	½ ½	½ ½	0 ½	½ ½	1 ½	1 ½	½ 1	12
5	Wasp 4.60b	½ 0	½ 0	½ ½	½ ½	x	1 ½	½ ½	½ ½	½ 1	1 ½	½ ½	½ ½	11½
6	Tucano 9.09_dev	½ 0	0 ½	½ ½	½ ½	0 ½	x	½ ½	½ ½	½ ½	½ ½	1 1	½ 1	11
7	Koivisto 4.44-L3	0 ½	½ ½	½ ½	½ ½	½ ½	½ ½	x	½ ½	½ ½	1 0	1 ½	½ ½	11
8	Combusken 1.9.9_dev	½ ½	½ ½	½ ½	1 ½	½ ½	½ ½	½ ½	x	½ ½	1 ½	½ ½	0 0	11
9	Marvin 5.1.0-a7	½ ½	0 ½	½ ½	½ ½	½ 0	½ ½	½ ½	½ ½	x	½ ½	1 ½	½ ½	10½
10	Pirarucu 3.3.5	½ 0	0 0	½ ½	0 ½	0 ½	½ ½	0 1	0 ½	½ ½	x	½ ½	1 ½	8½
11	Topple 0.8.0	0 ½	½ ½	½ 0	0 ½	½ ½	0 0	0 ½	½ ½	0 ½	½ ½	x	½ 1	8
12	Weiss 1.3-dev-20210317	0 0	0 ½	0 0	½ 0	½ ½	½ 0	½ ½	1 1	½ ½	0 ½	½ 0	x	7½

League 2

< Prev Next >
Season 21, League 2, June 05 - June 11, 2021, timecontrol 30' + 5'' ^[7].

#	Engine	Pe	Ne	Fr	De	Bo	Mi	Ha	Va	Wi	Cl	Se	Ar	P22
1	Pedone 20210528	x	½ ½	½ 1	½ 1	½ ½	½ 1	0 1	0 1	½ ½	1 ½	1 1	1 1	15
2	Nemorino 6.08	½ ½	x	0 1	½ 0	1 ½	½ ½	½ ½	½ ½	1 1	½ 1	1 ½	1 ½	13½
3	Fritz 17_20200830	½ 0	1 0	x	½ 1	½ ½	0 0	1 ½	½ 1	0 1	1 ½	1 1	½ 1	13
4	Defenchess 2.3_dev2	½ 0	½ 1	½ 0	x	0 1	1 ½	1 ½	1 ½	½ 0	½ 1	½ ½	½ 1	12½
5	Booot 6.5	½ ½	0 ½	½ ½	1 0	x	½ ½	½ ½	½ ½	½ 1	1 ½	½ 1	½ 1	12½
6	Minic 3.07	½ 0	½ ½	1 1	0 ½	½ ½	x	½ ½	½ ½	½ ½	1 ½	1 ½	½ 1	12½
7	Halogen 10.12	1 0	½ ½	0 ½	0 ½	½ ½	½ ½	x	0 1	½ 1	½ ½	½ ½	1 ½	11
8	Vajolet2 2.9.0-TCEC-S19	1 0	½ ½	½ 0	0 ½	½ ½	½ ½	1 0	x	½ 1	0 ½	1 ½	½ ½	10½
9	Winter 9.4	½ ½	0 0	1 0	½ 1	½ 0	½ ½	½ 0	½ 0	x	½ ½	1 ½	½ ½	9½
10	ClassicAra 0.9.4	0 ½	½ 0	0 ½	½ 0	0 ½	0 ½	½ ½	1 ½	½ ½	x	½ ½	½ 1	9
11	Seer 20210531	0 0	0 ½	0 0	½ ½	½ 0	0 ½	½ ½	0 ½	0 ½	½ ½	x	½ 1	7
12	Arasan 22.3.0	0 0	0 ½	½ 0	½ 0	½ 0	½ 0	0 ½	½ ½	½ ½	½ 0	½ 0	x	6

League 1

< Prev Next >
Season 21, League 1, June 11 - June 19, 2021, timecontrol 45' + 5'' ^[8]

#	Engine	Ig	Et	Ru	Sl	Pe	Xi	ro	Ne	P28
1	Igel 3.0.5	x	½ 1 0 ½	1 ½ 1 ½	½ ½ 1 0	1 ½ 1 ½	½ 1 ½ 1	1 ½ 0 ½	½ ½ ½ 1	17½
2	Ethereal 12.95	½ 0 1 ½	x	½ ½ 1 0	½ ½ ½ 1	½ ½ 1 1	1 0 ½ ½	1 ½ ½ 1	½ 1 1 0	17
3	RubiChess TCEC-S21	0 ½ 0 ½	½ ½ 0 1	x	½ ½ ½ 1	½ 1 1 ½	½ ½ ½ ½	1 ½ 1 ½	½ ½ 1 0	15½
4	SlowChess Blitz 2.54 avx	½ ½ 0 1	½ ½ ½ 0	½ ½ ½ 0	x	0 ½ ½ 1	1 ½ 1 ½	0 ½ ½ ½	½ ½ ½ 1	14
5	Pedone 20210528	0 ½ 0 ½	½ ½ 0 0	½ 0 0 ½	1 ½ ½ 0	x	1 ½ ½ 1	1 ½ ½ 0	½ ½ ½ 1	12½
6	Xiphos 0.6.1	½ 0 ½ 0	0 1 ½ ½	½ ½ ½ ½	0 ½ 0 ½	0 ½ ½ 0	x	½ ½ ½ 1	½ 1 ½ ½	12
7	rofChade 2.309	0 ½ 1 ½	0 ½ ½ 0	0 ½ 0 ½	1 ½ ½ ½	0 ½ ½ 1	½ ½ ½ 0	x	0 ½ ½ 1	12
8	Nemorino 6.08	½ ½ ½ 0	½ 0 0 1	½ ½ 0 1	½ ½ ½ 0	½ ½ ½ 0	½ 0 ½ ½	1 ½ ½ 0	x	11½

Premier Division

< Prev Next >
Season 21, Premier Division, June 21 - July 11, 2021, timecontrol 60' + 7'' ^[9]

#	Engine	St	Lc	Ko	Sv	Al	Sc	Ig	Et	P56
1	Stockfish 2021061923	x	½½ 0½ ½½ ½½	10 1½ 1½ 1½	1½ 1½ ½½ 1½	1½ 1½ ½½ 1½	½½ ½1 ½1 ½1	½1 ½1 ½1 ½1	1½ 1½ 1½ 1½	37½
2	LCZero 0.28.0-rc1_69146	½½ 1½ ½½ ½½	x	01 01 ½½ ½½	10 1½ ½½ 1½	½½ 1½ 1½ 1½	½1 ½1 ½1 ½1	½1 ½1 ½1 ½1	½½ 1½ 1½ 1½	36½
3	KomodoDragon 2747.00	01 0½ 0½ 0½	10 10 ½½ ½½	x	½½ ½1 11 ½1	½½ 1½ 1½ ½½	1½ 1½ ½½ 1½	½½ ½½ 1½ 1½	½1 ½1 ½½ ½1	33½
4	Stoofvlees II a18	0½ 0½ ½½ 0½	01 0½ ½½ 0½	½½ ½0 00 ½0	x	1½ ½½ ½½ 1½	1½ 10 10 1½	½½ 10 ½½ 1½	½1 ½1 ½1 ½1	28
5	AllieStein v0.8-120f959_PS1.7	0½ 0½ ½½ 0½	½½ 0½ 0½ 0½	½½ 0½ 0½ ½½	0½ ½½ ½½ 0½	x	½½ 1½ ½½ ½½	½½ 1½ 1½ ½0	10 1½ 1½ ½0	24½
6	ScorpioNN 3.0.13	½½ ½0 ½0 ½0	½0 ½0 ½0 ½0	0½ 0½ ½½ 0½	0½ 01 01 0½	½½ 0½ ½½ ½½	x	½1 0½ ½1 ½1	½½ 1½ 1½ 1½	24
7	Igel 3.0.5	½0 ½0 ½0 ½0	½0 ½0 ½0 ½0	½½ ½½ 0½ 0½	½½ 01 ½½ 0½	½½ 0½ 0½ ½1	½0 1½ ½0 ½0	x	½½ 01 ½1 ½1	22
8	Ethereal 13.07_NNUE-15EE	0½ 0½ 0½ 0½	½½ 0½ 0½ 0½	½0 ½0 ½½ ½0	½0 ½0 ½0 ½0	01 0½ 0½ ½1	½½ 0½ 0½ 0½	½½ 10 ½0 ½0	x	18

Finals

Infrafinal

Next >
A 50 games head to head contest between the 3rd and 4th place of the Premier Division to determine the 3rd finishing engine of the TCEC Season 21, from July 12 to July 18, 2021. Timecontrol 90' + 9 ^[10].

#	Engine	W	D	L	P50
3	KomodoDragon 2762.02	17	28	5	31
4	Stoofvlees II a18	5	28	17	19

Superfinal

< Prev Next >
July 20 - August 07, 2021, timecontrol 120'+10" ^[11]

#	Engine	W	D	L	P100
1	Stockfish 14_202107131735	19	74	7	56
2	LCZero 0.28-dev+_69626	7	74	19	44

After round 91 on August 05, 2021, Stockfish 14_202107131735 had already 50½.

Publications

Matthew Sadler (2021). TCEC Season 21 SuperFinal Review. pdf

Postings

ClassicAra takes the sole lead after R8, Chessdom, May 13, 2021
Koivisto downs with black the rating favorite, Chessdom, May 16, 2021
Koivisto is the winner of TCEC S21 Qualification League, Chessdom, May 19, 2021
Halogen with flying start at TCEC S21 L4, Chessdom, May 21, 2021
“The failed triumvirate report”, Chessdom, May 22, 2021
Booot kicks into high gear, wins TCEC S21 L4, Chessdom, May 25, 2021
will Tcec allow Stockfish with a Leela net to play? by Wilson, CCC, June 17, 2021
TCEC21 is over by Kanizsa, CCC, August 08, 2021

External Links

References

Up one level

[1] Image from TCEC - Official github · GitHub

[2] TCEC Leagues Season 21 Engines - TCEC wiki

[3] Engines and authors - TCEC wiki

[4] S21 - Qualification League | TCEC - Computer Chess Broadcast

[5] S21 - League 4 | TCEC - Computer Chess Broadcast

[6] S21 - League 3 | TCEC - Computer Chess Broadcast

[7] S21 - League 2 | TCEC - Computer Chess Broadcast

[8] S21 - League 1 | TCEC - Computer Chess Broadcast

[9] S21 - Premier Division | TCEC - Computer Chess Broadcast

[10] S21 - Infrafinal | TCEC - Computer Chess Broadcast

[11] S21 - Superfinal | TCEC - Computer Chess Broadcast

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[2]

[3]

[4]

[5]

[6]

[7]

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Difference between revisions of "TCEC Season 21"

Latest revision as of 15:21, 4 April 2022

Contents

Participants

Divisions

Qualification

League 4

League 3

League 2

League 1

Premier Division

Finals

Infrafinal

Superfinal

Publications

Postings

External Links

References

Navigation menu

Personal tools

Namespaces

Variants

Views

More

Search

Navigation

Tools

@@ Line 5: / Line 5: @@
 '''TCEC Season 21''',<br/>
-the Top Chess Engine Championship (TCEC) Season 21 from May 10, 2021.
+the Top Chess Engine Championship (TCEC) Season 21 from May 10 until August 07, 2021. [[Stockfish|Stockfish 14_202107131735]] won the [[#Superfinal|Superfinal]] versus [[Leela Chess Zero|LCZero 0.28-dev+_69626]].
+{| class="wikitable" style="margin: auto;"
+! [[#Superfinal|Superfinal]] :
+| [[Stockfish|Stockfish 14_202107131735]]
+| -
+| [[Leela Chess Zero|LCZero 0.28-dev+_69626]]
+! 56-44
+|}
 =Participants=
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+| style="text-align:center;" | '''1'''
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 | [[Stoofvlees]]
@@ Line 438: / Line 446: @@
 |
 |
-| style="text-align:center;" |
+| style="text-align:center;" | 4
-|
+| style="text-align:center;" | 4
 |-
 | [[TomitankChess|tomitankChess]]
@@ Line 457: / Line 465: @@
 |
 |
-| style="text-align:center;" |
+| style="text-align:center;" | 11
 |
 |
@@ Line 468: / Line 476: @@
 |
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-| style="text-align:center;" |
+| style="text-align:center;" | 6
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 |
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-| style="text-align:center;" |
+| style="text-align:center;" | 8
 |
 |
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 |
 |
+| style="text-align:center;" | 5
 |
-| style="text-align:center;" |
 |
 |
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 |
 |
-| style="text-align:center;" |
+| style="text-align:center;" | 12
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 |
 |
-| style="text-align:center;" |
+| style="text-align:center;" |  9
 |
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-| style="text-align:center;" |
+| style="text-align:center;" | 6
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@@ Line 534: / Line 542: @@
 <span id="Qual"></span>
 ==Qualification==
-'''[[TCEC Season 20#Fourth|< Prev]] [[TCEC Season 22#Qual|Next >]]'''<br/>
+'''[[TCEC Season 20#Qual|< Prev]] [[TCEC Season 22#Qual|Next >]]'''<br/>
-Qualification League, May 10 - May 19, 2021, timecontrol 30' + 5<nowiki>''</nowiki>
+Qualification League, May 10 - May 19, 2021, timecontrol 30' + 5<nowiki>''</nowiki> <ref>[https://tcec-chess.com/#div=ql&game=1&season=21 S21 - Qualification League | TCEC - Computer Chess Broadcast]</ref>
 {| class="wikitable"
@@ Line 811: / Line 819: @@
 ==League 4==
 '''[[TCEC Season 20#Fourth|< Prev]] [[TCEC Season 22#Fourth|Next >]]'''<br/>
-* [[Halogen|Halogen 10.11.1]]
+League 4, May 19 - May 25, 2021, timecontrol 30' + 5<nowiki>''</nowiki>
-* [[Monolith|Monolith 20210221]]
+<ref>[https://tcec-chess.com/#div=l4&game=1&season=21 S21 - League 4 | TCEC - Computer Chess Broadcast]</ref>.
-* [[Mr Bob|Mr_Bob dev-20210331]]
-* [[ChessFighter|ChessFighter 3.8.1]]
+{| class="wikitable"
-* [[Koivisto|Koivisto 4.44]]
+! #
-* [[CrazyAra#ClassicAra|ClassicAra 0.9.2.post1]]
+! Engine
-* [[Booot|Booot 6.5]]
+! Bo
-* [[Cheng|Cheng 4.41]]
+! Ha
-* [[Stash|Stash 30]]
+! Ko
-* [[Nirvanachess|Nirvana 2.5]]
+! Cl
-* [[Amoeba|Amoeba 3.3.1]]
+! Mo
-* [[Drofa|Drofa 3.0.0]]
+! Am
+! St
+! Ni
+! Ch
+! Mr
+! Dr
+! Ce
+! P<span style="font-size: 80%; vertical-align: sub;">22</span>
+|- style="background-color:#ccffcc;"
+! 1
+| [[Booot|Booot 6.5]]
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | ½ ½
+! 17½
+|- style="background-color:#ccffcc;"
+! 2
+| [[Halogen|Halogen 10.11.1]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 1
+! 16½
+|- style="background-color:#ccffcc;"
+!3
+| [[Koivisto|Koivisto 4.44]]
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 ½
+! 14½
+|- style="background-color:#ccffcc;"
+! 4
+| [[CrazyAra#ClassicAra|ClassicAra 0.9.2.post1]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | ½ 1
+! 14
+|-
+! 5
+| [[Monolith|Monolith 20210221]]
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 1
+! 12
+|-
+! 6
+| [[Amoeba|Amoeba 3.3.1]]
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 1
+! 10
+|-
+! 7
+| [[Stash|Stash 30]]
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+! 9½
+|-
+! 8
+| [[Nirvanachess|Nirvana 2.5]]
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | 1 ½
+! 8½
+|- style="background-color:#ffcccc;"
+! 9
+| [[Cheng|Cheng 4.41]]
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+! 8½
+|- style="background-color:#ffcccc;"
+! 10
+| [[Mr Bob|Mr_Bob dev-20210331]]
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+! 7½
+|- style="background-color:#ffcccc;"
+! 11
+| [[Drofa|Drofa 3.0.0]]
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+! 7
+|- style="background-color:#ffcccc;"
+! 12
+| [[ChessFighter|ChessFighter 3.8.1]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+! 6½
+|}
 <span id="Third"></span>
 ==League 3==
 '''[[TCEC Season 20#Third|< Prev]] [[TCEC Season 22#Third|Next >]]'''<br/>
-* [[Minic]]
+Season 21, League 3, May 25 - May 30, 2021, timecontrol 30' + 5<nowiki>''</nowiki>
-* [[Wasp]]
+<ref>[https://tcec-chess.com/#div=l3&game=1&season=21 S21 - League 3 | TCEC - Computer Chess Broadcast]</ref>.
-* [[Tucano]]
+{| class="wikitable"
-* [[Combusken]]
+! #
-* [[Weiss]]
+! Engine
-* [[Topple]]
+! Mi
-* [[Pirarucu]]
+! Bo
-* [[Marvin]]
+! Ha
-* [[Booot]]
+! Cl
-* [[Halogen]]
+! Wa
-* [[CrazyAra#ClassicAra|ClassicAra]]
+! Tu
-* [[Koivisto]]
+! Ko
+! Co
+! Ma
+! Pi
+! To
+! We
+! P<span style="font-size: 80%; vertical-align: sub;">22</span>
+|- style="background-color:#ccffcc;"
+! 1
+| [[Minic|Minic 3.06]]
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 1
+! 14½
+|- style="background-color:#ccffcc;"
+! 2
+| [[Booot|Booot 6.5]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+! 14
+|- style="background-color:#ccffcc;"
+! 3
+| [[Halogen|Halogen 10.11.1]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 1
+! 12½
+|- style="background-color:#ccffcc;"
+! 4
+| [[CrazyAra#ClassicAra|ClassicAra 0.9.2.post1]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ 1
+! 12
+|-
+! 5
+| [[Wasp|Wasp 4.60b]]
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+! 11½
+|-
+! 6
+| [[Tucano|Tucano 9.09_dev]]
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | ½ 1
+! 11
+|-
+! 7
+| [[Koivisto|Koivisto 4.44-L3]]
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+! 11
+|-
+! 8
+| [[Combusken|Combusken 1.9.9_dev]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 0
+! 11
+|- style="background-color:#ffcccc;"
+! 9
+| [[Marvin|Marvin 5.1.0-a7]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+! 10½
+|- style="background-color:#ffcccc;"
+! 10
+| [[Pirarucu|Pirarucu 3.3.5]]
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+! 8½
+|- style="background-color:#ffcccc;"
+! 11
+| [[Topple|Topple 0.8.0]]
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ 1
+! 8
+|- style="background-color:#ffcccc;"
+! 12
+| [[Weiss|Weiss 1.3-dev-20210317]]
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | '''x'''
+! 7½
+|}
 <span id="Second"></span>
 ==League 2==
 '''[[TCEC Season 20#Second|< Prev]] [[TCEC Season 22#Second|Next >]]'''<br/>
-* [[Nemorino]]
+Season 21, League 2, June 05 - June 11, 2021, timecontrol 30' + 5<nowiki>''</nowiki>
-* [[Defenchess]]
+<ref>[https://tcec-chess.com/#div=l2&game=1&season=21 S21 - League 2 | TCEC - Computer Chess Broadcast]</ref>.
-* [[Vajolet|Vajolet2]]
+{| class="wikitable"
-* [[Pedone]]
+! #
-* [[Winter]]
+! Engine
-* [[Fritz]]
+! Pe
-* [[Arasan]]
+! Ne
-* [[Seer]]
+! Fr
-* ...
+! De
-* ...
+! Bo
-* ...
+! Mi
-* ...
+! Ha
+! Va
+! Wi
+! Cl
+! Se
+! Ar
+! P<span style="font-size: 80%; vertical-align: sub;">22</span>
+|- style="background-color:#ccffcc;"
+! 1
+| [[Pedone|Pedone 20210528]]
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 1 1
+! 15
+|- style="background-color:#ccffcc;"
+! 2
+| [[Nemorino|Nemorino 6.08]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 ½
+! 13½
+|-
+! 3
+| [[Fritz|Fritz 17_20200830]]
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | ½ 1
+! 13
+|-
+! 4
+| [[Defenchess|Defenchess 2.3_dev2]]
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+! 12½
+|-
+! 5
+| [[Booot|Booot 6.5]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ 1
+! 12½
+|-
+! 6
+| [[Minic|Minic 3.07]]
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 1
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ 1
+! 12½
+|-
+! 7
+| [[Halogen|Halogen 10.12]]
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 0 1
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+! 11
+|-
+! 8
+| [[Vajolet|Vajolet2 2.9.0-TCEC-S19]]
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+! 10½
+|- style="background-color:#ffcccc;"
+! 9
+| [[Winter|Winter 9.4]]
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 1 0
+| style="text-align:center;" | ½ 1
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+! 9½
+|-style="background-color:#ffcccc;"
+! 10
+| [[CrazyAra#ClassicAra|ClassicAra 0.9.4]]
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 1 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 1
+! 9
+|- style="background-color:#ffcccc;"
+! 11
+| [[Seer|Seer 20210531]]
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ 1
+! 7
+|- style="background-color:#ffcccc;"
+! 12
+| [[Arasan|Arasan 22.3.0]]
+| style="text-align:center;" | 0 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | 0 ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ ½
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | ½ 0
+| style="text-align:center;" | '''x'''
+! 6
+|}
 <span id="First"></span>
 ==League 1==
 '''[[TCEC Season 20#First|< Prev]] [[TCEC Season 22#First|Next >]]'''<br/>
-* [[Ethereal]]
+Season 21, League 1, June 11 - June 19, 2021, timecontrol 45' + 5<nowiki>''</nowiki> <ref>[https://tcec-chess.com/#div=l1&game=1&season=21 S21 - League 1 | TCEC - Computer Chess Broadcast]</ref>
-* [[Rofchade]]
+{| class="wikitable"
-* [[Igel]]
+! #
-* [[Slow Chess|SlowChess]]
+! Engine
-* [[RubiChess]]
+! Ig
-* [[Xiphos]]
+! Et
-* ...
+! Ru
-* ...
+! Sl
+! Pe
+! Xi
+! ro
+! Ne
+! P<span style="font-size: 80%; vertical-align: sub;">28</span>
+|- style="background-color:#ccffcc;"
+! 1
+| [[Igel|Igel 3.0.5]]
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ 1 0 ½
+| style="text-align:center;" | 1 ½ 1 ½
+| style="text-align:center;" | ½ ½ 1 0
+| style="text-align:center;" | 1 ½ 1 ½
+| style="text-align:center;" | ½ 1 ½ 1
+| style="text-align:center;" | 1 ½ 0 ½
+| style="text-align:center;" | ½ ½ ½ 1
+! 17½
+|- style="background-color:#ccffcc;"
+! 2
+| [[Ethereal|Ethereal 12.95]]
+| style="text-align:center;" | ½ 0 1 ½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½ 1 0
+| style="text-align:center;" | ½ ½ ½ 1
+| style="text-align:center;" | ½ ½ 1 1
+| style="text-align:center;" | 1 0 ½ ½
+| style="text-align:center;" | 1 ½ ½ 1
+| style="text-align:center;" | ½ 1 1 0
+! 17
+|-
+! 3
+| [[RubiChess|RubiChess TCEC-S21]]
+| style="text-align:center;" | 0 ½ 0 ½
+| style="text-align:center;" | ½ ½ 0 1
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½ ½ 1
+| style="text-align:center;" | ½ 1 1 ½
+| style="text-align:center;" | ½ ½ ½ ½
+| style="text-align:center;" | 1 ½ 1 ½
+| style="text-align:center;" | ½ ½ 1 0
+! 15½
+|-
+! 4
+| [[Slow Chess|SlowChess Blitz 2.54 avx]]
+| style="text-align:center;" | ½ ½ 0 1
+| style="text-align:center;" | ½ ½ ½ 0
+| style="text-align:center;" | ½ ½ ½ 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 0 ½ ½ 1
+| style="text-align:center;" | 1 ½ 1 ½
+| style="text-align:center;" | 0 ½ ½ ½
+| style="text-align:center;" | ½ ½ ½ 1
+! 14
+|-
+! 5
+| [[Pedone|Pedone 20210528]]
+| style="text-align:center;" | 0 ½ 0 ½
+| style="text-align:center;" | ½ ½ 0 0
+| style="text-align:center;" | ½ 0 0 ½
+| style="text-align:center;" | 1 ½ ½ 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 1 ½ ½ 1
+| style="text-align:center;" | 1 ½ ½ 0
+| style="text-align:center;" | ½ ½ ½ 1
+! 12½
+|-
+! 6
+| [[Xiphos|Xiphos 0.6.1]]
+| style="text-align:center;" | ½ 0 ½ 0
+| style="text-align:center;" | 0 1 ½ ½
+| style="text-align:center;" | ½ ½ ½ ½
+| style="text-align:center;" | 0 ½ 0 ½
+| style="text-align:center;" | 0 ½ ½ 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½ ½ ½ 1
+| style="text-align:center;" | ½ 1 ½ ½
+! 12
+|- style="background-color:#ffcccc;"
+! 7
+| [[rofChade|rofChade 2.309]]
+| style="text-align:center;" | 0 ½ 1 ½
+| style="text-align:center;" | 0 ½ ½ 0
+| style="text-align:center;" | 0 ½ 0 ½
+| style="text-align:center;" | 1 ½ ½ ½
+| style="text-align:center;" | 0 ½ ½ 1
+| style="text-align:center;" | ½ ½ ½ 0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 0 ½ ½ 1
+! 12
+|- style="background-color:#ffcccc;"
+! 8
+| [[Nemorino|Nemorino 6.08]]
+| style="text-align:center;" | ½ ½ ½ 0
+| style="text-align:center;" | ½ 0 0 1
+| style="text-align:center;" | ½ ½ 0 1
+| style="text-align:center;" | ½ ½ ½ 0
+| style="text-align:center;" | ½ ½ ½ 0
+| style="text-align:center;" | ½ 0 ½ ½
+| style="text-align:center;" | 1 ½ ½ 0
+| style="text-align:center;" | '''x'''
+! 11½
+|}
 <span id="Premier"></span>
 ==Premier Division==
 '''[[TCEC Season 20#Premier|< Prev]] [[TCEC Season 22#Premier|Next >]]'''<br/>
-* [[Stockfish]]
+Season 21, Premier Division, June 21 - July 11, 2021, timecontrol 60' + 7<nowiki>''</nowiki> <ref>[https://www.tcec-chess.com/archive.html?season=21&div=p&game=1 S21 - Premier Division | TCEC - Computer Chess Broadcast]</ref>
-* [[Leela Chess Zero|LCZero]]
+{| class="wikitable"
-* [[Dragon by Komodo Chess|KomodoDragon]]
+! #
-* [[Allie#AllieStein|AllieStein]]
+! Engine
-* [[Stoofvlees]]
+! St
-* [[Scorpio#ScorpioNN|ScorpioNN]]
+! Lc
-* ...
+! Ko
-* ...
+! Sv
+! Al
+! Sc
+! Ig
+! Et
+! P<span style="font-size: 80%; vertical-align: sub;">56</span>
+|- style="background-color:#ccffcc;"
+! 1
+| [[Stockfish|Stockfish 2021061923]]
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½½ 0½<br/>½½ ½½
+| style="text-align:center;" | 10 1½<br/>1½ 1½
+| style="text-align:center;" | 1½ 1½<br/>½½ 1½
+| style="text-align:center;" | 1½ 1½<br/>½½ 1½
+| style="text-align:center;" | ½½ ½1<br/>½1 ½1
+| style="text-align:center;" | ½1 ½1<br/>½1 ½1
+| style="text-align:center;" | 1½ 1½<br/>1½ 1½
+! 37½
+|- style="background-color:#ccffcc;"
+! 2
+| [[Leela Chess Zero|LCZero 0.28.0-rc1_69146]]
+| style="text-align:center;" | ½½ 1½<br/>½½ ½½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 01 01<br/>½½ ½½
+| style="text-align:center;" | 10 1½<br/>½½ 1½
+| style="text-align:center;" | ½½ 1½<br/>1½ 1½
+| style="text-align:center;" | ½1 ½1<br/>½1 ½1
+| style="text-align:center;" | ½1 ½1<br/>½1 ½1
+| style="text-align:center;" | ½½ 1½<br/>1½ 1½
+! 36½
+|-
+! 3
+| [[Dragon by Komodo Chess|KomodoDragon 2747.00]]
+| style="text-align:center;" | 01 0½<br/>0½ 0½
+| style="text-align:center;" | 10 10<br/>½½ ½½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½½ ½1<br/>11 ½1
+| style="text-align:center;" | ½½ 1½<br/>1½ ½½
+| style="text-align:center;" | 1½ 1½<br/>½½ 1½
+| style="text-align:center;" | ½½ ½½<br/>1½ 1½
+| style="text-align:center;" | ½1 ½1<br/>½½ ½1
+! 33½
+|-
+! 4
+| [[Stoofvlees|Stoofvlees II a18]]
+| style="text-align:center;" | 0½ 0½<br/>½½ 0½
+| style="text-align:center;" | 01 0½<br/>½½ 0½
+| style="text-align:center;" | ½½ ½0<br/>00 ½0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | 1½ ½½<br/>½½ 1½
+| style="text-align:center;" | 1½ 10<br/>10 1½
+| style="text-align:center;" | ½½ 10<br/>½½ 1½
+| style="text-align:center;" | ½1 ½1<br/>½1 ½1
+! 28
+|-
+! 5
+| [[Allie#AllieStein|AllieStein v0.8-120f959_PS1.7]]
+| style="text-align:center;" | 0½ 0½<br/>½½ 0½
+| style="text-align:center;" | ½½ 0½<br/>0½ 0½
+| style="text-align:center;" | ½½ 0½<br/>0½ ½½
+| style="text-align:center;" | 0½ ½½<br/>½½ 0½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½½ 1½<br/>½½ ½½
+| style="text-align:center;" | ½½ 1½<br/>1½ ½0
+| style="text-align:center;" | 10 1½<br/>1½ ½0
+! 24½
+|-
+! 6
+| [[Scorpio#ScorpioNN|ScorpioNN 3.0.13]]
+| style="text-align:center;" | ½½ ½0<br/>½0 ½0
+| style="text-align:center;" | ½0 ½0<br/>½0 ½0
+| style="text-align:center;" | 0½ 0½<br/>½½ 0½
+| style="text-align:center;" | 0½ 01<br/>01 0½
+| style="text-align:center;" | ½½ 0½<br/>½½ ½½
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½1 0½<br/>½1 ½1
+| style="text-align:center;" | ½½ 1½<br/>1½ 1½
+! 24
+|- style="background-color:#ffcccc;"
+! 7
+| [[Igel|Igel 3.0.5]]
+| style="text-align:center;" | ½0 ½0<br/>½0 ½0
+| style="text-align:center;" | ½0 ½0<br/>½0 ½0
+| style="text-align:center;" | ½½ ½½<br/>0½ 0½
+| style="text-align:center;" | ½½ 01<br/>½½ 0½
+| style="text-align:center;" | ½½ 0½<br/>0½ ½1
+| style="text-align:center;" | ½0 1½<br/>½0 ½0
+| style="text-align:center;" | '''x'''
+| style="text-align:center;" | ½½ 01<br/>½1 ½1
+! 22
+|- style="background-color:#ffcccc;"
+! 8
+| [[Ethereal|Ethereal 13.07_NNUE-15EE]]
+| style="text-align:center;" | 0½ 0½<br/>0½ 0½
+| style="text-align:center;" | ½½ 0½<br/>0½ 0½
+| style="text-align:center;" | ½0 ½0<br/>½½ ½0
+| style="text-align:center;" | ½0 ½0<br/>½0 ½0
+| style="text-align:center;" | 01 0½<br/>0½ ½1
+| style="text-align:center;" | ½½ 0½<br/>0½ 0½
+| style="text-align:center;" | ½½ 10<br/>½0 ½0
+| style="text-align:center;" | '''x'''
+! 18
+|}
+<span id="finals"></span>
+=Finals=
+<span id="Infra"></span>
+==Infrafinal==
+'''[[TCEC Season 22#Infra|Next >]]'''<br/>
+A 50 games head to head contest between the 3rd and 4th place of the [[#Premier|Premier Division]] to determine the 3rd finishing engine of the TCEC Season 21, from  July 12 to July 18, 2021. Timecontrol 90' + 9'' <ref>[https://tcec-chess.com/#div=if&game=1&season=21 S21 - Infrafinal | TCEC - Computer Chess Broadcast]</ref>.
+{| class="wikitable"
+! #
+! Engine
+! W
+! D
+! L
+! P<span style="font-size: 80%; vertical-align: sub;">50</span>
+|-
+! 3
+| [[Dragon by Komodo Chess|KomodoDragon 2762.02]]
+| style="text-align:right;" | 17
+| style="text-align:right;" | 28
+| style="text-align:right;" | 5
+! 31
+|-
+! 4
+| [[Stoofvlees|Stoofvlees II a18]]
+| style="text-align:right;" | 5
+| style="text-align:right;" | 28
+| style="text-align:right;" | 17
+! 19
+|}
 <span id="Sufi"></span>
-=Superfinal=
+==Superfinal==
 '''[[TCEC Season 20#Sufi|< Prev]] [[TCEC Season 22#Sufi|Next >]]'''<br/>
+July 20 - August 07, 2021, timecontrol 120'+10" <ref>[https://tcec-chess.com/#div=sf&game=1&season=21 S21 - Superfinal | TCEC - Computer Chess Broadcast]</ref><br/>
+{| class="wikitable"
+! #
+! Engine
+! W
+! D
+! L
+! P<span style="font-size: 80%; vertical-align: sub;">100</span>
+|-
+! 1
+| [[Stockfish|Stockfish 14_202107131735]]
+| style="text-align:right;" | 19
+| style="text-align:right;" | 74
+| style="text-align:right;" | 7
+! 56
+|-
+! 2
+| [[Leela Chess Zero|LCZero 0.28-dev+_69626]]
+| style="text-align:right;" | 7
+| style="text-align:right;" | 74
+| style="text-align:right;" | 19
+! 44
+|}
+After round 91 on August 05, 2021, [[Stockfish|Stockfish 14_202107131735]] had already 50½.
+=Publications=
+* [[Matthew Sadler]] ('''2021'''). ''TCEC Season 21 SuperFinal Review''. [https://tcec-chess.com/articles/Sufi_21_-_Sadler.pdf pdf]
 =Postings=
+* [https://www.chessdom.com/classicara-takes-the-sole-lead-after-r8/ ClassicAra takes the sole lead after R8], [[Chessdom]], May 13, 2021
+* [https://www.chessdom.com/koivisto-downs-with-black-the-rating-favorite/ Koivisto downs with black the rating favorite], [[Chessdom]], May 16, 2021
 * [https://www.chessdom.com/koivisto-is-the-winner-of-tcec-s21-qualification-league/ Koivisto is the winner of TCEC S21 Qualification League], [[Chessdom]], May 19, 2021
 * [https://www.chessdom.com/halogen-with-flying-start-at-tcec-s21-l4/ Halogen with flying start at TCEC S21 L4], [[Chessdom]], May 21, 2021
+* [https://www.chessdom.com/the-failed-triumvirate-report/ “The failed triumvirate report”], [[Chessdom]], May 22, 2021
+* [https://www.chessdom.com/booot-kicks-into-high-gear-wins-tcec-s21-l4/ Booot kicks into high gear, wins TCEC S21 L4], [[Chessdom]], May 25, 2021
+* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=77503 will Tcec allow Stockfish with a Leela net to play?] by Wilson, [[CCC]], June 17, 2021
+* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=77908 TCEC21 is over] by Kanizsa, [[CCC]], August 08, 2021
 =External Links=
@@ Line 891: / Line 1,763: @@
 * [https://tcec-chess.com/liveold.html TCEC - Live Old Mode]
 * [https://wiki.chessdom.org/TCEC_Leagues_Season_21 TCEC Leagues Season 21 - TCEC wiki]
+* [https://en.wikipedia.org/wiki/TCEC_Season_21 TCEC Season 21 from Wikipedia]
+* [https://www.youtube.com/channel/UCq06gd_5HTiG8IIu5-enWyA Silicon Road] by [[Matthew Sadler]], [https://en.wikipedia.org/wiki/YouTube YouTube]Videos
 =References=