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Created page with "'''Home * Engines * BugChess NL''' FILE:EB1911 Hemiptera - Fig. 8.—Bed-bug (Cimex lectularius).jpg|border|right|thumb| Bed-bug <ref>[https://en.wikipedi..."
'''[[Main Page|Home]] * [[Engines]] * BugChess NL'''
[[FILE:EB1911 Hemiptera - Fig. 8.—Bed-bug (Cimex lectularius).jpg|border|right|thumb| Bed-bug <ref>[https://en.wikipedia.org/wiki/Bed_bug Bed bug] ([https://en.wikipedia.org/wiki/Cimex_lectularius Cimex lectularius]), Source: ''[https://en.wikipedia.org/wiki/Hemiptera Hemiptera]'', [https://en.wikipedia.org/wiki/Encyclop%C3%A6dia_Britannica Encyclopædia Britannica] (11th ed.), [https://archive.org/stream/encyclopaediabrit13chisrich#page/260/mode/1up v. 13, 1911, p. 260], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''BugChess''', (QueenMaxima)<br/>
a [[Chess Engine Communication Protocol]] compatible chess engine by [[Erik van het Hof]] and [[Hermen Reitsma]] developed in the period from 1996 to 2000, initially with focus on [[Losing Chess]], written in [[Cpp|C++]].
BugChess played the [[DOCCC 1998|18th Dutch Open Computer Chess Championship 1998]] running on a [[x86|Pentium II]] at 450MHz <ref>[[Theo van der Storm]] ('''1998'''). ''Report on the 18th Dutch Open Computer-Chess Championship''. [[ICGA Journal#21_4|ICCA Journal, Vol. 21, No. 4]]</ref>,
and was active in the late 90s at [[Internet Chess Club|ICC]], as reported in [[Will Singleton|Will Singleton's]] ICC Green Lists <ref>[https://www.stmintz.com/ccc/index.php?id=79887 ICC Green List - Nov 29] by [[Will Singleton]], [[CCC]], November 29, 1999</ref>.
The program continued to play as '''QueenMaxima(C)''' at ICC and was published as [[:Category:Open Source|open source engine]] under the [[Free Software Foundation#GPL|GPL license]].
[[UCI]] compliance was created in 2013 <ref>[https://github.com/hof/queenmaxima/blob/master/src/uci.h queenmaxima/uci.h at master · hof/queenmaxima · GitHub]</ref>.
=Features=
==[[Board Representation]]==
* [[8x8 Board]]
* [[Piece-Lists]]
==[[Search]]==
* [[Depth#FractionalPlies|Fractional Ply]] [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Principal Variation Search]]
* [[Transposition Table]]
* [[Selectivity]]
** [[Extensions]]
*** [[Check Extensions]]
*** [[Mate Threat Extensions]]
*** [[One Reply Extensions]]
*** [[Passed Pawn Extensions]]
*** [[Recapture Extensions]]
** [[Null Move Pruning]]
** [[Quiescence Search]]
* [[Move Ordering]]
** [[Hash Move]]
** [[Internal Iterative Deepening]]
** [[MVV-LVA|MVV/LVA]]
** [[Static Exchange Evaluation]]
==[[Evaluation]]==
* [[Piece-Square Tables]]
* [[Bishop Pair]]
* [[Mobility]]
* [[Trapped Pieces|Trapped Bishops]]
* [[King Safety]]
* [[Pawn Structure]]
** [[Isolated Pawn|Isolated Pawns]]
** [[Passed Pawn|Passed Pawns]]
** [[Connected Passed Pawns]]
==Misc==
* [[Book Learning]]
* [[Pondering]]
* [[Losing Chess]]
=Selected Games=
[[DOCCC 1998]], round 10, [[BugChess NL|BugChess]] - [[CilkChess]]
<pre>
[Event "Dutch Open Computer 1998"]
[Site "Leiden NED"]
[Date "1998.11.29"]
[Round "10"]
[White "BugChess"]
[Black "CilkChess"]
[Result "0-1"]
1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.Bd3 Bb4+ 5.Bd2 Bc5 6.e5 Nd5 7.Bg5 Ne7 8.Nbd2 h6
9.Bf4 Nbc6 10.Nb3 d6 11.Nxc5 dxc5 12.O-O O-O 13.Qe2 Bf5 14.Bxf5 Nxf5 15.Qb5 Qd5
16.Bd2 Nxe5 17.Nxe5 Qxe5 18.Qxb7 Rab8 19.Qxa7 Rxb2 20.Qa4 Qe4 21.Rac1 Nh4
22.f3 Ra8 23.Qc4 Qc6 24.a4 Rxa4 25.Qe2 c4 26.Qe7 Nf5 27.Qe5 Rb5 28.Qe4 Qxe4
29.fxe4 Nd6 30.Bf4 Nxe4 31.Bxc7 Ra2 32.Rf4 Nc3 33.Rf2 f6 34.g4 Rbb2 35.Bf4 d3
36.Kh1 Ne2 37.Rd1 Nxf4 0-1
</pre>
=Namesake=
* [[BugChess FR|BugChess2]] by [[François Karr]] and [[Jean-Philippe Karr]]
=See also=
* [[Maxima2]]
=Forum Posts=
* [https://www.stmintz.com/ccc/index.php?id=87365 ICC Green List - Jan 10] by [[Will Singleton]], [[CCC]], January 10, 2000
=External Links=
==Chess Engine==
* [https://github.com/hof/queenmaxima GitHub - hof/queenmaxima: QueenMaxima chess program]
==Misc==
* [https://en.wikipedia.org/wiki/Bug Bug from Wikipedia]
* [https://en.wikipedia.org/wiki/Software_bug Software bug from Wikipedia]
* [https://en.wikipedia.org/wiki/Hemiptera Hemiptera (true bug) from Wikipedia]
* [https://en.wikipedia.org/wiki/Queen Queen from Wikipedia]
* [https://en.wikipedia.org/wiki/Maxima Maxima from Wikipedia]
* [https://en.wikipedia.org/wiki/Queen_M%C3%A1xima_of_the_Netherlands Queen Máxima of the Netherlands from Wikipedia]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:WinBoard]]
[[Category:XBoard]]
[[Category:UCI]]
[[Category:PC]]
[[Category:X86]]
[[Category:Linux]]
[[Category:Windows]]
[[Category:Losing Chess]]
[[Category:Namesake]]
[[Category:Arthropod]]
[[Category:Nobility]]
[[Category:Chess Suffix]]
[[FILE:EB1911 Hemiptera - Fig. 8.—Bed-bug (Cimex lectularius).jpg|border|right|thumb| Bed-bug <ref>[https://en.wikipedia.org/wiki/Bed_bug Bed bug] ([https://en.wikipedia.org/wiki/Cimex_lectularius Cimex lectularius]), Source: ''[https://en.wikipedia.org/wiki/Hemiptera Hemiptera]'', [https://en.wikipedia.org/wiki/Encyclop%C3%A6dia_Britannica Encyclopædia Britannica] (11th ed.), [https://archive.org/stream/encyclopaediabrit13chisrich#page/260/mode/1up v. 13, 1911, p. 260], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''BugChess''', (QueenMaxima)<br/>
a [[Chess Engine Communication Protocol]] compatible chess engine by [[Erik van het Hof]] and [[Hermen Reitsma]] developed in the period from 1996 to 2000, initially with focus on [[Losing Chess]], written in [[Cpp|C++]].
BugChess played the [[DOCCC 1998|18th Dutch Open Computer Chess Championship 1998]] running on a [[x86|Pentium II]] at 450MHz <ref>[[Theo van der Storm]] ('''1998'''). ''Report on the 18th Dutch Open Computer-Chess Championship''. [[ICGA Journal#21_4|ICCA Journal, Vol. 21, No. 4]]</ref>,
and was active in the late 90s at [[Internet Chess Club|ICC]], as reported in [[Will Singleton|Will Singleton's]] ICC Green Lists <ref>[https://www.stmintz.com/ccc/index.php?id=79887 ICC Green List - Nov 29] by [[Will Singleton]], [[CCC]], November 29, 1999</ref>.
The program continued to play as '''QueenMaxima(C)''' at ICC and was published as [[:Category:Open Source|open source engine]] under the [[Free Software Foundation#GPL|GPL license]].
[[UCI]] compliance was created in 2013 <ref>[https://github.com/hof/queenmaxima/blob/master/src/uci.h queenmaxima/uci.h at master · hof/queenmaxima · GitHub]</ref>.
=Features=
==[[Board Representation]]==
* [[8x8 Board]]
* [[Piece-Lists]]
==[[Search]]==
* [[Depth#FractionalPlies|Fractional Ply]] [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Principal Variation Search]]
* [[Transposition Table]]
* [[Selectivity]]
** [[Extensions]]
*** [[Check Extensions]]
*** [[Mate Threat Extensions]]
*** [[One Reply Extensions]]
*** [[Passed Pawn Extensions]]
*** [[Recapture Extensions]]
** [[Null Move Pruning]]
** [[Quiescence Search]]
* [[Move Ordering]]
** [[Hash Move]]
** [[Internal Iterative Deepening]]
** [[MVV-LVA|MVV/LVA]]
** [[Static Exchange Evaluation]]
==[[Evaluation]]==
* [[Piece-Square Tables]]
* [[Bishop Pair]]
* [[Mobility]]
* [[Trapped Pieces|Trapped Bishops]]
* [[King Safety]]
* [[Pawn Structure]]
** [[Isolated Pawn|Isolated Pawns]]
** [[Passed Pawn|Passed Pawns]]
** [[Connected Passed Pawns]]
==Misc==
* [[Book Learning]]
* [[Pondering]]
* [[Losing Chess]]
=Selected Games=
[[DOCCC 1998]], round 10, [[BugChess NL|BugChess]] - [[CilkChess]]
<pre>
[Event "Dutch Open Computer 1998"]
[Site "Leiden NED"]
[Date "1998.11.29"]
[Round "10"]
[White "BugChess"]
[Black "CilkChess"]
[Result "0-1"]
1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.Bd3 Bb4+ 5.Bd2 Bc5 6.e5 Nd5 7.Bg5 Ne7 8.Nbd2 h6
9.Bf4 Nbc6 10.Nb3 d6 11.Nxc5 dxc5 12.O-O O-O 13.Qe2 Bf5 14.Bxf5 Nxf5 15.Qb5 Qd5
16.Bd2 Nxe5 17.Nxe5 Qxe5 18.Qxb7 Rab8 19.Qxa7 Rxb2 20.Qa4 Qe4 21.Rac1 Nh4
22.f3 Ra8 23.Qc4 Qc6 24.a4 Rxa4 25.Qe2 c4 26.Qe7 Nf5 27.Qe5 Rb5 28.Qe4 Qxe4
29.fxe4 Nd6 30.Bf4 Nxe4 31.Bxc7 Ra2 32.Rf4 Nc3 33.Rf2 f6 34.g4 Rbb2 35.Bf4 d3
36.Kh1 Ne2 37.Rd1 Nxf4 0-1
</pre>
=Namesake=
* [[BugChess FR|BugChess2]] by [[François Karr]] and [[Jean-Philippe Karr]]
=See also=
* [[Maxima2]]
=Forum Posts=
* [https://www.stmintz.com/ccc/index.php?id=87365 ICC Green List - Jan 10] by [[Will Singleton]], [[CCC]], January 10, 2000
=External Links=
==Chess Engine==
* [https://github.com/hof/queenmaxima GitHub - hof/queenmaxima: QueenMaxima chess program]
==Misc==
* [https://en.wikipedia.org/wiki/Bug Bug from Wikipedia]
* [https://en.wikipedia.org/wiki/Software_bug Software bug from Wikipedia]
* [https://en.wikipedia.org/wiki/Hemiptera Hemiptera (true bug) from Wikipedia]
* [https://en.wikipedia.org/wiki/Queen Queen from Wikipedia]
* [https://en.wikipedia.org/wiki/Maxima Maxima from Wikipedia]
* [https://en.wikipedia.org/wiki/Queen_M%C3%A1xima_of_the_Netherlands Queen Máxima of the Netherlands from Wikipedia]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:WinBoard]]
[[Category:XBoard]]
[[Category:UCI]]
[[Category:PC]]
[[Category:X86]]
[[Category:Linux]]
[[Category:Windows]]
[[Category:Losing Chess]]
[[Category:Namesake]]
[[Category:Arthropod]]
[[Category:Nobility]]
[[Category:Chess Suffix]]
