Engine Releases

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For a more comprehensive list, see Computer Chess Wiki, or the Release Calendar (tab) in the full version of the XB/UCI chronology

=2021=

August

 * Protej 0.5.9 - August 05, 2021

July

 * Koivisto 6.0 - July 21, 2021
 * Myrddin 0.88 - July 18, 2021
 * Marvin 5.1.0 - July 10, 2021
 * Revenge 1.0 - July 09, 2021
 * RubiChess 2.2 - July 07, 2021
 * Nalwald 1.10 - July 03, 2021
 * Berserk 4.3.0 - July 03, 2021
 * Stockfish 14 - July 02, 2021
 * Weiss 1.4 - July 02, 2021

June

 * MinimalChess 0.5 - June 30, 2021
 * GreKo 2021.06 MP - June 30, 2021
 * Stash 31.0 - June 28, 2021
 * Chiron 5 - June 21, 2021
 * Slow Chess Classic 2.6 - June 20, 2021
 * Nalwald 1.9 - June 16, 2021
 * Galjoen 0.41.2 - June 09, 2021
 * Invictus r382 - June 07, 2021
 * Ethereal 13.00 - June 04, 2021
 * Ethereal 13.00 (NNUE) - June 04, 2021
 * Minic 3.08 - June 04, 2021

May

 * Arasan 22.3 - May 31, 2021
 * Berserk 4.2.0 - May 25, 2021
 * KnightX v2.8 - May 23, 2021
 * Fire_8.N - May 22, 2021
 * Invictus r340 - May 19, 2021
 * OliThink 5.9.5 - May 18, 2021
 * ClassicAra 0.9.2.post1 - May 10, 2021
 * Komodo Dragon 2 - May 04, 2021
 * Belofte 2.1.2 - May 02, 2021
 * Barbarossa 0.6.0 - May 01, 2021
 * Stash 30.0 - May 01, 2021
 * Bagatur 2.2b - May 01, 2021

April

 * Igel 3.0.5 - April 28, 2021
 * Berserk 4.0.0 - April 27, 2021
 * Cheng 4.41 - April 27, 2021
 * Seer 2.0.0 - April 27, 2021
 * MinimalChess 0.4 - April 27, 2021
 * Pedone 3.1 - April 25, 2021
 * Nalwald - April 25, 2021
 * Clover - April 23, 2021
 * DanaSah 8.8 - April 20, 2021
 * MadChess 3.0 - April 19, 2021
 * Drofa 3.0.0 - April 17, 2021
 * Fire 8.1 - April 16, 2021
 * RubiChess 2.1 - April 14, 2021
 * GreKo PSQ 1.1 - April 14, 2021
 * Loki 3.0 - April 14, 2021
 * KnightX v2.7 - April 05, 2021

March

 * Booot 6.5 - March 21, 2021
 * Berserk 3.0.0 - March 19, 2021
 * Amoeba 3.3 - March 14, 2021
 * Loki 2.0.0 - March 11, 2021
 * MinimalChess 0.3 - March 09, 2021

February

 * CT800 V1.42 - February 27, 2021
 * Fire 8 - February 23, 2021
 * Berserk 1.2.2 - February 21, 2021
 * Stockfish 13 - February 19, 2021
 * Lozza 2.0 - February 18, 2021
 * KnightX 2.61 - February 16, 2021
 * MinimalChess 0.2 - February 12, 2021
 * Ceres 0.87 - February 09, 2021
 * Fat Fritz 2.0 - February 09, 2021
 * Drofa 2.2.0 - February 01, 2021

January

 * Belofte 2.1 - January 26, 2021
 * Galjoen 0.41 - January 26, 2021
 * TomitankChess 5.0 - January 18, 2021
 * Marvin 5.0.0 - January 12, 2021
 * Slow Chess Classic 2.5 - January 11, 2021
 * Cheng 4.40 - January 02, 2021
 * Wasp 4.5 - January 01, 2021
 * Pedone 3.0 - January 01, 2021
 * K2 v0.99 - January 01, 2021

=2020=

December

 * Igel 2.9.0 - December 25, 2020
 * Francesca 0.30 - December 23, 2020
 * Arasan 22.2 - December 22, 2020
 * Wukong JS - December 19, 2020
 * Minic 3.02 - December 19, 2020
 * Stash v25.0 - December 18, 2020
 * KnightX 2.5 - December 14, 2020
 * Tornado NNUE - December 09, 2020
 * Nirvanachess 2.5 - December 06, 2020
 * Orion 0.8 - December 01, 2020

November

 * paulchen332 - November 23, 2020
 * Sapeli 2.0 - November 23, 2020
 * Marvin 4.0.1 - November 19, 2020
 * Seer 1.2 - November 18, 2020
 * ProDeo 3.0 - November 17, 2020
 * Halogen 8.1 - November 11, 2020
 * Dragon by Komodo Chess - November 10, 2020
 * Drofa 2.0.0 - November 09, 2020
 * Koivisto 4.0 - November 09, 2020
 * Stash v23.0 - November 08, 2020
 * Minic 3.00 - November 03, 2020
 * Komodo 14.1 - November 02, 2020
 * Slow Chess Classic 2.4 - November 02, 2020
 * Seer 1.1 - November 02, 2020

October

 * Combusken 1.4.0 - October 31, 2020
 * Scorpio v3.0.10 (NNUE) - October 30, 2020
 * Stash v22.0 - October 28, 2020
 * Mr Bob v0.9.0 - October 28, 2020
 * Halogen 8 - October 27, 2020
 * Belofte 2.0.6 - October 27, 2020
 * Cinnamon v2.3.1 - October 26, 2020
 * BBC 1.4 + Stockfish NNUE - October 25, 2020
 * Seer 1.0 - October 18, 2020
 * Weiss 1.2 - October 17, 2020
 * Koivisto 3.0 - October 17, 2020
 * Leela Chess Zero / Lc0 v0.26.3 - October 10, 2020
 * Ethereal 12.75 - October 09, 2020
 * Tucano 9.00 - October 07, 2020
 * Winter v0.9 - October 05, 2020

September

 * Stash v21.0 - September 28, 2020
 * Nemorino 6 (NNUE) - September 28, 2020
 * KnightX 2.4 - September 26, 2020
 * BBC 1.0 - September 24, 2020
 * Igel 2.8.0 NNUE - September 23, 2020
 * Halogen 7 - September 22, 2020
 * Counter 3.6 - September 09, 2020
 * OliThink 5.7.5 - September 09, 2020
 * Mr Bob v0.8.0 - September 08, 2020
 * Ethereal 12.50 - September 08, 2020
 * Koivisto 2.0 - September 08, 2020
 * Cheese 2.2 - September 05, 2020
 * Weiss 1.1 - September 02, 2020
 * Stockfish 12 - September 02, 2020
 * Koivisto - September 02, 2020
 * Leela Chess Zero / Lc0 v0.26.2 - September 02, 2020
 * Slow Chess Classic 2.3 - September 01, 2020

August

 * Drofa 1.0 - August 31, 2020
 * CT800 V1.41 - August 29, 2020
 * Marvin 4.0.0 - August 29, 2020
 * Stash v20.0.1 - August 28, 2020
 * Pedone 2.1 - August 20, 2020
 * Igel 2.7.0 NNUE - August 19, 2020
 * Mr Bob v0.7.1 - August 16, 2020
 * RubiChess 1.8 - August 15, 2020
 * Halogen 6 - August 12, 2020
 * Roc 20200804 - August 04, 2020

July

 * Amoeba 3.2 - July 25, 2020
 * Leela Chess Zero / Lc0 v0.26.1 - July 15, 2020
 * Stash v19.0 - July 14, 2020
 * Halogen 5 - July 14, 2020
 * Allie v0.7 - July 11, 2020
 * Mr Bob v0.6.2 - July 05, 2020
 * Orion 0.7 - July 04, 2020
 * Leela Chess Zero / Lc0 v0.26.0 - July 02, 2020
 * Arasan 22.1 - July 01, 2020

June

 * KnightX 2.3 - June 28, 2020
 * Stash v18.1 - June 23, 2020
 * Halogen 4 - June 22, 2020
 * OliThink 5.4.0 - June 16, 2020
 * Slow Chess Classic 2.2 - June 16, 2020
 * Igel 2.5.0 - June 15, 2020
 * Wasp 4.00 - June 14, 2020
 * Weiss 1.0 - June 02, 2020

May

 * KnightX 2.0 - May 31, 2020
 * GNU Chess 6.2.7 - May 31, 2020
 * Bagatur 2.2 - May 29, 2020
 * Winter v0.8 - May 26, 2020
 * FabChess 1.15 - May 22, 2020
 * Stash v16.0 - May 15, 2020
 * Komodo 14 - May 12, 2020
 * Counter 3.5 - May 10, 2020
 * Gogobello 2.2 - May 06, 2020
 * Pirarucu v3.3.5 - May 02, 2020
 * Slow Chess Classic 2.1 - May 01, 2020

April

 * Leela Chess Zero / Lc0 v0.25.1 - April 30, 2020
 * Mr Bob v0.5.0 - April 29, 2020
 * RubiChess 1.7.2 - April 27, 2020
 * Weiss 0.10 - April 26, 2020
 * Stash v15.0 - April 26, 2020
 * chess22k 1.14 - April 26, 2020
 * rofChade 2.3 - April 21, 2020
 * Allie v0.6 - April 20, 2020
 * Monolith 2.0 - April 19, 2020
 * GNU Chess 6.2.6 - April 18, 2020
 * Combusken 1.1.0 - April 06, 2020
 * CT800 V1.40 - April 05, 2020
 * Booot 6.4 - April 05, 2020

March

 * Minic version 2 - March 31, 2020
 * A0lite - March 28, 2020
 * Slow Chess Classic 2.0 - March 20, 2020
 * Leela Chess Zero / Lc0 v0.24.1 - March 15, 2020
 * Bagatur 2.0 - March 13, 2020
 * FabChess 1.14 - March 12, 2020
 * Belofte 0.9.18 - March 08, 2020

February

 * Ethereal 12.00 - February 29, 2020
 * Combusken - February 23, 2020
 * Mr Bob v0.4.0 - February 18, 2020
 * Leela Chess Zero / Lc0 v0.23.3 - February 18, 2020
 * Topple v0.7.5 - February 16, 2020
 * Weiss 0.9 - February 14, 2020
 * Stash v1 - v8 - February 13, 2020
 * Marvin 3.5.0 - February 13, 2020
 * Belofte 0.9.10 - February 06, 2020
 * KnightX 1.98 - February 01, 2020
 * Slow Chess Classic 1.9 - February 01, 2020
 * Crafty 25.6 - February 01, 2020

January

 * Mr Bob v0.3.2 - January 26, 2020
 * Stockfish 11 - January 18, 2020
 * Slow Chess Classic 1.8 - January 17, 2020
 * Amoeba 3.1 - January 16, 2020
 * Belofte 0.9.8 - January 14, 2020
 * RubiChess 1.6.1.1 - January 11, 2020
 * Weiss 0.8 - January 07, 2020
 * Halogen 3 - January 06, 2020
 * PeSTO - January 04, 2020
 * Pedone 2.0 - January 01, 2020

=2019=

December

 * Leela Chess Zero / Lc0 v0.23.2 - December 31, 2019
 * Pirarucu v3.2.4 - December 29, 2019
 * Topple v0.7.4 - December 27, 2019
 * Bagatur 1.9 - December 19, 2019
 * Belofte 0.9.6 - December 15, 2019
 * Halogen 2.7 - December 11, 2019
 * Arasan 22.0 - December 10, 2019
 * Slow Chess Classic 1.7 - December 08, 2019
 * Weiss 0.7 - December 06, 2019
 * Asymptote 0.7 - December 06, 2019
 * Invictus r305 - December 05, 2019

November

 * FabChess 1.13 - November 24, 2019
 * Weiss 0.6 - November 18, 2019
 * Fritz 17 - November 12, 2019
 * Fat Fritz - November 12, 2019
 * Ethereal 11.75 - November 11, 2019
 * Slow Chess Classic 1.6 - November 08, 2019
 * Xiphos v0.6 - November 07, 2019
 * Vajolet2 2.8 - November 01, 2019

October

 * Gogobello 2.1 - October 24, 2019
 * KnightX 1.97 - October 23, 2019
 * Counter 3.4 - October 19, 2019
 * RubiChess 1.6 - October 16, 2019
 * Allie v0.5 - October 14, 2019
 * Tucano 8.00 - October 13, 2019
 * iCE 4 - October 07, 2019

September

 * FabChess 1.12 - September 22, 2019
 * Winter v0.7 - September 21, 2019
 * KnightX 1.96 - September 19, 2019
 * Slow Chess Classic 1.5 - September 17, 2019
 * Roc 1.3 - September 10, 2019
 * Wasp 3.75 - September 06, 2019
 * rofChade 2.2 - September 06, 2019

August

 * Topple v0.7.3 - August 31, 2019
 * Slow Chess Classic 1.4 - August 30, 2019
 * FabChess 1.10 - August 28, 2019
 * Galjoen 0.40 - August 27, 2019
 * Defenchess 2.2 - August 23, 2019
 * Scorpio 3.0 - August 20, 2019
 * Leela Chess Zero / Lc0 v0.22.0 - August 05, 2019

July

 * Bagatur 1.8 - July 30, 2019
 * Leela Chess Zero / Lc0 v0.21.4 - July 28, 2019
 * chess22k 1.13 - July 28, 2019
 * Francesca 0.25 - July 28, 2019
 * Slow Chess Classic 1.0 - July 27, 2019
 * Defenchess 2.1 - July 25, 2019
 * FabChess 1.8 - July 18, 2019
 * KnightX 1.95 - July 14, 2019
 * Topple v0.7.2 - July 12, 2019
 * Marvin 3.4.0 - July 09, 2019
 * Cheese 2.1 - July 08, 2019
 * K2 v0.95 - July 04, 2019
 * Halogen 2.6.2a - July 03, 2019
 * Arasan 21.4 - July 02, 2019
 * Chess Fighter 2.0 - July 01, 2019

June

 * Pirarucu v3.0.7 - June 27, 2019
 * RubiChess 1.5 - June 27, 2019
 * Halogen 2.5 - June 27, 2019
 * Topple v0.7.1 - June 24, 2019
 * Roc 1.1 - June 13, 2019
 * Leela Chess Zero / Lc0 v0.21.2 - June 09, 2019
 * Orion v0.6 - June 01, 2019

May

 * Topple v0.6.1 - May 31, 2019
 * Allie v0.4 - May 31, 2019
 * KnightX 1.94 - May 30, 2019
 * Winter v0.6 - May 26, 2019
 * Asymptote 0.6 - May 25, 2019
 * Komodo 13 - May 06, 2019
 * Allie v0.3 - May 04, 2019

April

 * RubiChess 1.4 - April 27, 2019
 * rofChade 2.1 - April 26, 2019
 * Sapeli 1.0 - April 20, 2019
 * Chess Fighter - April 11, 2019
 * Wasp 3.60 - April 07, 2019
 * Marvin 3.3.0 - April 06, 2019
 * Vajolet2 2.7 - April 03, 2019
 * Topple v0.5.0 - April 02, 2019
 * Asymptote 0.5 - April 02, 2019

March

 * Bagatur 1.7 - March 29, 2019
 * Arasan 21.3 - March 29, 2019
 * Amoeba 3.0 - March 28, 2019
 * Leela Chess Zero / Lc0 v0.21.1 - March 23, 2019
 * Allie 0.2 - March 22, 2019
 * Cinnamon v2.1 - March 18, 2019
 * ChessBrainVB V3.74 - March 15, 2019
 * Xiphos v0.5 - March 11, 2019
 * Pedone 1.9 - March 08, 2019
 * Gogobello 2.0 - March 07, 2019
 * Francesca 0.22 - March 06, 2019
 * Topple v0.4.0 - March 01, 2019
 * Pirarucu v2.9.5 - March 01, 2019

February

 * RubiChess 1.3.1 - February 27, 2019
 * KnightX 1.93 - February 23, 2019
 * Allie - February 20, 2019
 * Winter v0.5 - February 19, 2019
 * CT800 V1.34 - February 09, 2019
 * Topple v0.3.5 - February 03, 2019
 * Leela Chess Zero / Lc0 v0.20.2 - February 01, 2019

January

 * Topple v0.3.4 - January 26, 2019
 * Winter v0.4a - January 21, 2019
 * Ethereal 11.25 - January 21, 2019
 * Asymptote 0.4 - January 21, 2019
 * Scorpio 2.9.0 - January 17, 2019
 * Bagatur 1.6 - January 17, 2019
 * ProDeo 2.91 - January 16, 2019
 * CT800 V1.33 - January 08, 2019
 * Leela Chess Zero / Lc0 v0.20.1 - January 07, 2019
 * Francesca MAD v0.20 - January 03, 2019
 * Roc 1.0 - January 02, 2019
 * Leela Chess Zero / Lc0 v0.20.9 - January 01, 2019

=2018=

December

 * Arasan 21.2 - December 31, 2018
 * rofChade 2.0 - December 20, 2018
 * Andscacs 0.95 - December 17, 2018
 * ProDeo 2.9 - December 15, 2018
 * Cheese 2.0 - December 15, 2018
 * Wasp 3.50 - December 14, 2018
 * RubiChess 1.2.1 - December 14, 2018
 * Winter v0.3 - December 13, 2018
 * Leela Chess Zero / Lc0 v0.19.1.1 - December 10, 2018
 * Counter 3.1 - December 10, 2018
 * chess22k 1.12 - December 03, 2018
 * Googleplex Starthinker - December 02, 2018

November

 * Vajolet2 2.6.2 - November 30, 2018
 * Stockfish 10 - November 29, 2018
 * Leela Chess Zero / Lc0 v0.19.0 - November 19, 2018
 * Pirarucu v2.7.4 - November 17, 2018
 * Marvin 3.2.0 - November 08, 2018
 * Demolito 20181029 - November 06, 2018

October

 * Minic - October 20, 2018
 * Pirarucu v2.6.1 - October 18, 2018
 * Monolith 1.0 - October 18, 2018
 * Scorpio 2.8.9 - October 06, 2018
 * Leela Chess Zero / Lc0 v0.18.1 - October 02, 2018
 * Arasan 21.1 - October 02, 2018
 * CT800 V1.32 - October 01, 2018
 * RubiChess 1.1 - October 01, 2018

September

 * Leela Chess Zero / Lc0 v0.18.0 - September 30, 2018
 * Invictus r228 - September 29, 2018
 * Xiphos v0.4 - September 24, 2018
 * ChessBrainVB V3.72 - September 18, 2018
 * Vajolet2 2.6.1 - September 04, 2018

August

 * Rofchade 1.0 - August 27, 2018
 * Leela Chess Zero / Lc0 v0.17.0 - August 27, 2018
 * Pirarucu v2.3.8 - August 22, 2018
 * Galjoen 0.39 - August 15, 2018
 * Belofte 0.9.3 - August 07, 2018
 * ProDeo 2.8 - August 06, 2018
 * Winter v0.2 - August 05, 2018
 * RubiChess 1.0 - August 04, 2018

July

 * Pedone 1.8 - July 30, 2018
 * K2 v0.91 - July 24, 2018
 * Pirarucu v2.2.2 - July 22, 2018
 * Nemorino 5 - July 22, 2018
 * Leela Chess Zero / Lc0 v0.16.0 - July 20, 2018
 * Topple v0.2.1 - July 16, 2018
 * Ethereal 10.55 - July 16, 2018
 * Laser 1.6 - July 14, 2018
 * Andscacs 0.94 - July 11, 2018
 * chess22k 1.10 - July 09, 2018
 * Leela Chess Zero / Lc0 v0.14.1 - July 08, 2018
 * Marvin 3.1.0 - July 05, 2018
 * Scorpio 2.8.6 - July 04, 2018
 * Igel - July 03, 2018

June

 * Pirarucu v2.1.1 - June 30, 2018
 * Arasan 21.0 - June 30, 2018
 * Topple v0.1.2 - June 29, 2018
 * Booot 6.3 - June 29, 2018
 * Xiphos v0.3 - June 25, 2018
 * Orion v0.5 - June 21, 2018
 * Vajolet2 2.6 - June 18, 2018

May

 * Pirarucu v1.9.7 - May 30, 2018
 * Ethereal 10.00 - May 30, 2018
 * RubiChess 0.9 - May 28, 2018
 * Fire 7.1 - May 27, 2018
 * Komodo 12 - May 14, 2018
 * Wasp 3.00 - May 11, 2018
 * CT800 V1.30 - May 08, 2018
 * ChessBrainVB V3.70 - May 08, 2018
 * Scorpio 2.8.5 - May 02, 2018
 * Asymptote - May 02, 2018

April

 * Pirarucu v1.7.2 - April 30, 2018
 * chess22k 1.9 - April 23, 2018
 * Xiphos v0.2.2 - April 20, 2018
 * Lozza 1.18 - April 18, 2018
 * Arasan 20.5 - April 08, 2018

March

 * RubiChess 0.8.1 - March 24, 2018
 * Xiphos 0.1.1 - March 22, 2018
 * Monolith 0.4 - March 18, 2018
 * Galjoen 0.38 - March 18, 2018
 * chess22k 1.8 - March 04, 2018
 * Komodo 11.3 - March 04, 2018
 * Demolito 20180301 - March 01, 2018

February

 * Xiphos v0.1 - February 27, 2018
 * GreKo 2018.02 - February 27, 2018
 * ChessBrainVB V3.66 - February 24, 2018
 * CT800 V1.20 - February 17, 2018
 * RuyDos 1.1.0 - February 17, 2018
 * Cheese 1.9.2 - February 17, 2018
 * Ethereal 9.00 - February 15, 2018
 * Marvin 3.0.0 - February 10, 2018
 * Scorpio 2.8 - February 10, 2018
 * Stockfish 9 - February 01, 2018

January

 * SmarThink v1.98 - January 31, 2018
 * GreKo 2018.01 - January 31, 2018
 * Atlas 3.91 - January 26, 2018
 * Vajolet2 2.5 - January 25, 2018
 * ChessV 2.1 - January 20, 2018
 * RubiChess 0.7 - January 19, 2018
 * Pedone 1.7 - January 16, 2018
 * Schooner 1.8 - January 15, 2018
 * Andscacs 0.93 - January 14, 2018
 * Winter 0.1 - January 13, 2018
 * The Baron 3.42 - January 08, 2018
 * GreKo 2017 - January 08, 2018
 * Arasan 20.4.1 - January 05, 2018

=2017=

December

 * Toga II 4.0 - December 29, 2017
 * chess22k 1.7 - December 28, 2017
 * Laser 1.5 - December 27, 2017
 * ChessBrainVB V3.61 - December 26, 2017
 * Fizbo 2 - December 21, 2017
 * Nemorino 4 - December 21, 2017
 * Jumbo 0.5.27 - December 18, 2017
 * Scorpio 2.7.9 - December 16, 2017
 * Tucano 7.00 - December 16, 2017
 * Ethereal 8.61 SMP - December 12, 2017
 * Amoeba 2.7 - December 11, 2017
 * Fruit Reloaded 3.2.1 - December 08, 2017
 * tomitankChess 1.5 - December 03, 2017
 * Galjoen 0.37 - December 03, 2017

November

 * RubiChess 0.6 - November 26, 2017
 * Wasp 2.60 - November 22, 2017
 * Vajolet2 2.4 - November 19, 2017
 * Fritz 16 - November 14, 2017
 * chess22k 1.6 - November 13, 2017
 * Counter 2.1.0 - November 12, 2017
 * Ethereal 8.37 - November 10, 2017
 * Senpai 2.0 - November 10, 2017
 * Arasan 20.3 - November 05, 2017
 * Andscacs 0.921 - November 04, 2017

October

 * Scorpio 2.7.7 - October 31, 2017
 * The Baron 3.41 - October 22, 2017 (Dated May 2017)
 * Orion v0.4 - October 15, 2017
 * CT800 V1.12 - October 14, 2017
 * FireFly 2.72 - October 13, 2017
 * DanaSah 7.0 - October 09, 2017
 * RomiChess P3n - October 05, 2017

September

 * Prophet3 - September 30, 2017
 * Marvin 2.2.0 - September 30, 2017
 * Texel 1.07 - September 30, 2017
 * RubiChess 0.5 - September 29, 2017
 * Nemeton 1.6 - September 27, 2017
 * RamJet 0.14 - September 27, 2017
 * Jumbo 0.5.3 - September 25, 2017
 * Fire 6.1 - September 23, 2017
 * Monolith 0.3 - September 22, 2017
 * Amoeba 2.6 - September 22, 2017
 * tomitankChess 1.4 - September 17, 2017
 * Houdini 6 - September 17, 2017
 * Andscacs 0.92 - September 17, 2017
 * Cheese 1.9.1 - September 16, 2017
 * Ethereal 8.28 - September 13, 2017
 * Zurichess Neuchâtel - September 08, 2017

August

 * Demolito 2017-08-26 - August 26, 2017
 * ChessBrainVB V3.50 - August 26, 2017
 * RomiChess P3M - August 22, 2017
 * Dimitri 3.61 - August 15, 2017
 * chess22k 1.5 - August 12, 2017
 * Nirvanachess 2.4 - August 11, 2017
 * RubiChess 0.4 - August 04, 2017

July

 * Komodo 11.2.2 - July 28, 2017
 * GNU Chess 6.2.5 - July 25, 2017
 * Betsabe II 1.75 - July 22, 2017
 * Gogobello 1.3 - July 21, 2017
 * Arasan 20.2 - July 15, 2017
 * Bagatur 1.5d - July 15, 2017
 * ProDeo 2.4 - July 07, 2017
 * MadChess 2.2 - July 03, 2017
 * Soldat III 1.87 - July 03, 2017

June

 * Belofte 0.9.1 - June 29, 2017
 * Roc 0.9 - June 28, 2017
 * Marvin 2.1.0 - June 24, 2017
 * chess22k 1.4 - June 18, 2017
 * Nemorino 3 - June 18, 2017
 * CT800 V1.11 - June 17, 2017
 * ChessBrainVB V3.31 - June 16, 2017
 * Pedone 1.6 - June 10, 2017
 * Dorpsgek Dillinger - June 08, 2017
 * Amoeba 2.5 - June 07, 2017
 * Galjoen 0.36 - June 06, 2017
 * Nemeton3D 1.51 - June 04, 2017
 * WyldChess 1.5 - June 04, 2017
 * Demolito - June 04, 2017
 * Ethereal 8.16 - June 03, 2017
 * RuyDos - June 01, 2017

May

 * Ghost 3.1 - May 30, 2017
 * Monolith 0.2 - May 26, 2017
 * Komodo 11.01 - May 23, 2017
 * Laser 1.4 - May 11, 2017
 * Roc 0.7 - May 09, 2017
 * Andscacs 0.91 - May 09, 2017
 * Booot 6.2 - May 08, 2017
 * Zurichess Luzern - May 08, 2017
 * Cheese 1.9 - May 06, 2017
 * Wasp 2.01 - May 04, 2017
 * Jumbo 0.4.34 - May 01, 2017

April

 * Dirty 30APR2017 - April 30, 2017
 * Arasan 20.1 - April 28, 2017
 * chess22k 1.3 - April 26, 2017
 * Schooner 1.7 - April 25, 2017
 * Monolith 0.1 - May 24, 2017
 * Amoeba 2.4 - April 19, 2017
 * Cinnamon 2.0 - April 17, 2016
 * ProDeo 2.3 - April 05, 2017
 * EveAnn 1.72 - April 01, 2017

March

 * Zeta v099a - March 28, 2017
 * Andscacs 0.90 - March 25, 2017
 * Fischerle 0.9.80 SE - March 24, 2017
 * Marvin 2.0.0 - March 21, 2017
 * chess22k 1.2 - March 19, 2017
 * ChessV 2.0 - March 19, 2017
 * Nemorino 2.0a - March 14, 2017
 * Komodo 10.4 - March 14, 2017
 * Roc 0.6 - March 13, 2017
 * WyldChess 1.4 - March 12, 2017
 * Rodent III - March 11, 2017
 * ChessBrainVB V3.20 - March 11, 2017
 * chess4j 3.2 - March 11, 2017
 * Galjoen 0.35 - March 04, 2017
 * Amoeba 2.2 - March 02, 2017

February

 * Vajolet2 2.3 - February 28, 2017
 * NG-play 9.87 - February 25, 2017
 * Roc 0.5 - February 23, 2017
 * MadChess 2.1 - February 22, 2017
 * Zurichess Jura - February 18, 2017
 * DanaSah 6.5 - February 15, 2017
 * chess4j 3.1 - February 12, 2017
 * chess22k 1.1 - February 09, 2017
 * EXchess v7.97 - February 04, 2017
 * Gogobello 1.1 - February 01, 2017

January

 * GopherCheck 0.2.0 - January 31, 2017
 * Jumbo 0.4.16 - January 31, 2017
 * Arasan 20.0 - January 31, 2017
 * Tornado 8 - January 30, 2017
 * Amoeba 2.1 - January 24, 2017
 * Crafty 25.3 - January 23, 2017 » Playing Strength
 * Roc 0.1 - January 19, 2017
 * Nemorino 2.0 - January 16, 2017
 * WyldChess 1.3 - January 14, 2017
 * Dorpsgek Cosmopolitan - January 14, 2017
 * Chiron 4 - January 10, 2017
 * Laser 1.3 - January 08, 2017
 * Arminius 2017-01-01 - January 01, 2017

=2016=

December

 * Fizbo 1.9 - December 31, 2016
 * GreKo 2016 - December 30, 2016
 * Jumbo 0.4.0 - December 24, 2016
 * Nemeton 1.5 - December 24, 2016
 * Komodo 10.3 - December 22, 2016
 * SmarThink v1.97 - December 22, 2016
 * Barbarossa 0.4.0 - December 20, 2016
 * ChessBrainVB V3.03a - December 15, 2016

November

 * Amoeba 2.0 - November 27, 2016
 * SjaakII 1.4.0 - November 27, 2016
 * Fire 5 - November 14, 2016
 * CT800 V1.01 - November 13, 2016
 * ChessV 0.95 - November 13, 2016
 * Houdini 5 - November 09, 2016
 * Bobcat 8.0 - November 05, 2016
 * Arasan 19.2 - November 03, 2016
 * Stockfish 8 - November 01, 2016

October

 * Deep Shredder 13 - October 30, 2016
 * Komodo 10.2 - October 29, 2016
 * Crafty 25.2 - October 29, 2016
 * GNU Chess 6.2.4 - October 29, 2016
 * Andscacs 0.88 - October 28, 2016
 * Jumbo 0.3.8 - October 23, 2016
 * Giraffe 20161023 - October 23, 2016
 * Pedone 1.5 - October 23, 2016
 * Booot 6.1 - October 18, 2016
 * Crafty 25.1 - October 04, 2016
 * Carballo 1.6 - October 01, 2016

September

 * Wasp 1.25 - September 30, 2016
 * Dorky v4.5 - September 25, 2016
 * ProDeo 2.2 - September 25, 2016
 * Nemorino - September 23, 2016
 * Rodent II 0.9.64 - September 22, 2016
 * GNU Chess 6.2.3 - September 19, 2016
 * Jumbo 0.1.5 - September 19, 2016
 * Laser 1.2 - September 17, 2016
 * Gogobello 1.0 - September 15, 2016
 * Coiled 0.4 - September 12, 2016
 * CT800 - September 05, 2016
 * Ethereal7.78 - September 04, 2016

August

 * Fizbo 1.8 - August 26, 2016
 * Floyd 0.9 - August 20, 2016
 * Zurichess Graubuenden - August 16, 2016
 * Hannibal 1.7 - August 09, 2016
 * Arasan 19.1 - August 09, 2016
 * Amoeba 1.3 - August 03, 2016

July

 * Nirvanachess 2.3 - July 31, 2016
 * Lozza v1.17 - July 29, 2016
 * Andscacs 0.872 - July 23, 2016
 * Komodo 10.1 - July 21, 2016
 * DisasterArea-1.65 - July 18, 2016
 * GreKo 2015 ML - July 12, 2016
 * Texel 1.06 - July 10, 2016
 * Booot 6.0 - July 06, 2016
 * SjaakII 1.3.1 - July 05, 2016
 * Wasp 1.02 - July 01, 2016

June

 * SmarThink v1.96 - June 29, 2016
 * Wasp 1.01 - June 21, 2016
 * Vajolet2 2.2 - June 19, 2016
 * Andscacs 0.87 - June 19, 2016
 * CyberPagno 3.0 - June 16, 2016
 * GopherCheck 0.1.0 - June 06, 2016
 * DanaSah 6.2 - June 04, 2016

May

 * Komodo 10 - May 23, 2016
 * SmarThink v1.95 - May 23, 2016
 * Rodent II 0.9.33 - May 23, 2016
 * Amoeba - May 20, 2016
 * Schooner 1.5 - May 11, 2016
 * EXchess v7.92 - May 11, 2016
 * Nemeton 1.4 - May 03, 2016
 * Chiron 3 - May 01, 2016
 * Phalanx XXV - May 01, 2016

April

 * Arasan 19.0 - April 29, 2016
 * Laser 1.1 - April 18, 2016
 * Zurichess Glarus - April 17, 2016
 * Cinnamon v2.0 - April 16, 2016
 * Muse 0.95 - April 10, 2016
 * Orion v0.3 - April 03, 2016
 * Pedone 1.4 - April 03, 2016

March

 * Floyd 0.8 - March 31, 2016
 * SmarThink v1.90 - March 28, 2016
 * SjaakII 1.3.0 - March 26, 2016
 * Fischerle 0.9.70 SE - March 25, 2016
 * Andscacs 0.86 - March 24, 2016
 * Fizbo 1.7 - March 23, 2016
 * Komodo 9.42 - March 21, 2016
 * Cheese 1.8 - March 19, 2016
 * Gogobello 0.12 - March 13, 2016

February

 * ChessBrainVB V2.05 - February 29, 2016
 * Nemeton 1.3 - February 28, 2016
 * Fairy-Max 5.0b - February 19, 2016
 * Rodent II - February 15, 2016
 * Tucano 6.00 - February 14, 2016
 * Rodin v8.0 - February 07, 2016
 * Arasan 18.3 - February 02, 2016

January

 * Fizbo 1.6 - January 29, 2016
 * Andscacs 0.85 - January 22, 2016
 * SjaakII 1.2.1 - January 10, 2016
 * Donna v4.0 - January 08, 2016
 * iCE 3 - January 03, 2016
 * Stockfish 7 - January 02, 2016
 * SmarThink v1.80 - January 02, 2016
 * Vajolet2 2.1 - January 01, 2016

=2015=

December

 * EXchess v7.88b - December 30, 2015
 * Crafty 25.0 - December 28, 2015
 * Laser 1.0 - December 24, 2015
 * Andscacs 0.84 - December 07, 2015
 * Arasan 18.2 - December 03, 2015

November

 * Zurichess Geneva - November 29, 2015
 * Komodo 9.3 - November 27, 2015
 * Rhetoric 1.4.3 - November 26, 2015
 * Fritz 15 - November 25, 2015
 * GreKo 2015 - November 18, 2015
 * Bobcat 7.1 - November 17, 2015
 * Andscacs 0.83 - November 10, 2015
 * Dirty 03NOV2015 - November 05, 2015
 * Arasan 18.1 - November 02, 2015
 * Ares 1.005.2 - November 01, 2015

October

 * Lozza 1.16 - October 31, 2015
 * Maverick 1.5 - October 28, 2015
 * Donna v3.1 - October 26, 2015
 * CyberPagno 2.3 - October 21, 2015
 * Pedone 1.3 - October 18, 2015
 * GNU Chess 6.2.2 - October 17, 2015
 * Nirvanachess 2.2 - October 14, 2015
 * Rebel 13 - October 13, 2015
 * MadChess 2.0 - October 12, 2015
 * GreKo 13.1 - October 07, 2015
 * Barbarossa 0.3.0 - October 06, 2015

September

 * Fischerle 0.9.65 - September 14, 2015
 * Giraffe - September 08, 2015

August

 * Zurichess Fribourg - August 30, 2015
 * Tornado 7 - August 26, 2015
 * Komodo 9.2 - August 21, 2015
 * Schooner 1.4 - August 19, 2015
 * Fizbo 1.5 - August 16, 2015
 * Andscacs 0.82 - August 16, 2015
 * Arminius 2015-08-06 - August 06, 2015
 * GreKo 12.9 - August 02, 2015

July

 * Pedone 1.2 - July 31, 2015
 * Arasan 18.0 - July 30, 2015
 * Cheng 4.39 - July 20, 2015
 * Alfil 15.7 - July 08, 2015
 * The Baron 3.29 - July 07, 2015 (Dated February 26, 2012, based on Crashtest Dummy )

June

 * Hakkapeliitta 3.0 - June 27, 2015
 * Fridolin 2.0 - June 25, 2015
 * Komodo 9.1 - June 20, 2015
 * Andscacs 0.81 - June 20, 2015
 * Nemeton 1.2 - June 16, 2015
 * Pawny 1.1 - June 10, 2015

May

 * EXchess v7.71 - May 29, 2015
 * Protector 1.8.0 - May 27, 2015
 * GreKo 12.8 - May 19, 2015
 * Fizbo 1.4 - May 18, 2015
 * Cinnamon v1.1 - May 14, 2015
 * Nirvanachess 2.1 - May 04, 2015
 * Donna v2.0 - May 03, 2015

April

 * Komodo 9 - April 28, 2015
 * GreKo 12.6 - April 25, 2015
 * Lozza 1.15 - April 24, 2015
 * Maverick 1.0 - April 23, 2015
 * Vajolet2 2.0 - April 21, 2015
 * Dirty 10APR2015 - April 17, 2015
 * Andscacs 0.80 - April 17, 2015
 * Cheese 1.7 - April 04, 2015

March

 * Pedone 1.1 - March 24, 2015
 * Maverick 0.60 - March 20, 2015
 * SjaakII 1.0.0 - March 18, 2015
 * Rodent 1.7 - March 18, 2015

February

 * Nemeton 1.1 - February 15, 2015
 * Atlas 3.80 - February 06, 2015
 * Andscacs 0.72 - February 01, 2015

January

 * Hannibal 1.5 - January 28, 2015
 * Stockfish 6 - January 27, 2015
 * Myrddin 0.87 - January 25, 2015
 * Arasan 17.5 - January 24, 2015
 * Texel 1.05 - January 24, 2015
 * Cheng 4 0.38 - January 18, 2015
 * GNU Chess 6.2.1 - January 18, 2015

=2014=

December

 * CPW-Engine v1.1 - December 30, 2014
 * EXchess v7.51 - December 26, 2014
 * Hakkapeliitta 2.0 - December 25, 2014
 * Phalanx XXIV - December 24, 2014
 * GreKo 12.5 - December 21, 2014
 * Andscacs 0.71 - December 17, 2014
 * Nirvanachess 2.0 - December 17, 2014
 * Jazz r818 - December 17, 2014
 * Donna 1.0 - December 14, 2014
 * Pedone 1.0 - December 14, 2014
 * Equinox 3.30 - December 12, 2014
 * Fire 4 - December, 06, 2014

November

 * NoraGrace 2.0 - November 22, 2014
 * GNU Chess 5.60 - November 22, 2014
 * CyberPagno 2.2 - November 19, 2014
 * Nemeton 1 - November 18, 2014
 * DisasterArea - November 15, 2014
 * Fizbo 1.3 - November 11, 2014
 * Andscacs 0.70 - November 05, 2014
 * Rodent 1.6 - November 02, 2014

October

 * Tornado 6.0 - October 26, 2014
 * Phalanx XXIII - October 20, 2014
 * Arasan 17.4 - October 08, 2014
 * GreKo 12.1 - October 07, 2014

September

 * Equinox 3.20 - September 30, 2014
 * Naum 4.6 - September 28, 2014
 * Delphil 3.2 - September 28, 2014
 * Crafty 24.1 - September 27, 2014
 * Rhetoric 1.4.1 - September 22, 2014
 * Protector 1.7.0 - September 19, 2014
 * Rodent 1.5 - September 08, 2014
 * iCE 2.0 - September 07, 2014
 * Komodo 8 - September 05, 2014
 * Arasan 17.3 - September 01, 2014

August

 * Tucano 5.00 - August 31, 2014
 * DiscoCheck 5.2.1 - August 21, 2014
 * EXchess v7.31 - August 17, 2014

July

 * GNU Chess 6.1.2 - July 30, 2014
 * Vajolet2 1.43 - July 21, 2014
 * SmarThink v1.70 - July 21, 2014
 * Atlas 3.70em - July 20, 2014

June

 * SmarThink v1.60 - June 23, 2014
 * Deuterium v14.2.33.276 - June 21, 2014
 * Rhetoric 1.4 - June 20, 2014
 * Andscacs 0.64 - June 07, 2014

May

 * Stockfish 5 - May 31, 2014
 * Texel 1.04 - May 29, 2014
 * Crafty 24.0 - May 25, 2014
 * Ares 1.005 - May 23, 2014
 * Komodo 7 - May 21, 2014
 * Rodin v7.0 - May 12, 2014
 * Cheese 1.6 - May 10, 2014
 * EXchess v7.26 - May 07, 2014
 * Arasan 17.1 - May 07, 2014

April

 * Rodent 1.4 - April 30, 2014
 * Gull 3 - April 17, 2014
 * MadChess 1.4 - April 12, 2014
 * Djinn 1.021 - April 12, 2014
 * GreKo 12.0 - April 01, 2014

March

 * Tucano 4.00 - March 30, 2014
 * Vajolet2 - March 29, 2014
 * Arasan 17.0 - March 27, 2014
 * Gaviota v1.0 - March 08, 2014

February

 * Rhetoric 1.2 - February 28, 2014
 * BlackMamba 2.0 - February 08, 2014

January

 * Cheng4 0.36c - January 30, 2014
 * ProDeo 1.88 - January 28, 2014
 * Rodent 1.3 - January 21, 2014
 * Texel 1.03 - January 19, 2014
 * DiscoCheck 5.2 - January 11, 2014
 * pikoSzachy Extreme Edition - January 01, 2014
 * SmarThink v1.50 - January 01, 2014

=2013=

December

 * EveAnn 1.72 - December 31, 2013, see EveAnn 1.72 Bug fixed
 * Raffaela 2.1 - December 30, 2013
 * Djinn 1.006 - December 24, 2013
 * Rhetoric 1.1 - December 21, 2013
 * ProDeo 1.87 - December 17, 2013
 * Chiron 2 - December 13, 2013
 * DiscoCheck 5.1 - December 07, 2013
 * Arasan 16.3 - December 06, 2013
 * Komodo TCEC - December 04, 2013 (dedicated to Don Dailey)

November

 * Stockfish DD - November 29, 2013 (dedicated to Don Dailey)
 * Houdini 4 - November 25, 2013
 * GNU Chess 6.1.1 - November 23, 2013
 * Deep Fritz 14 - November 20, 2013
 * Atlas 3.60 - November 18, 2013
 * Crafty 23.8 - November 11, 2013
 * SmarThink v1.40 - November 11, 2013

October

 * Djinn 0.992 - October 26, 2013
 * DiscoCheck 5.01 - October 26, 2013
 * Arasan 16.2 - October 25, 2013
 * Deep Junior Yokohama - October 24, 2013
 * Komodo 6 - October 4, 2013

=References= Up one Level