25,161
edits
Changes
Created page with "'''Home * Engines * PolarChess''' FILE:thecaseofthebipolarchessqueen.jpg|border|right|thumb|link=http://www.flickr.com/photos/29528454@N04/5428134932| The..."
'''[[Main Page|Home]] * [[Engines]] * PolarChess'''
[[FILE:thecaseofthebipolarchessqueen.jpg|border|right|thumb|link=http://www.flickr.com/photos/29528454@N04/5428134932| The case of the bi-polar chess queen <ref>[http://www.flickr.com/photos/29528454@N04/5428134932 THE CASE OF THE BI-POLAR CHESS QUEEN: A Short Story | Flickr - Fotosharing!] by [http://www.flickr.com/photos/huffstutterrobertl/ Robert Huffstutter]</ref> ]]
'''PolarChess''',<br/>
a [[WinBoard]] compliant chess engine, written at [http://toolserver.org/~geohack/geohack.php?pagename=Vads%C3%B8¶ms=70_04_24_N_029_44_59_E_region:NO_type:city 70° 4′ 24″ N], 3° 30′ 40″ north the [https://en.wikipedia.org/wiki/Arctic_Circle Arctic Circle] in [https://en.wikipedia.org/wiki/Vads%C3%B8 Vadsø] <ref>[http://www.gaisma.com/en/location/vadso.html Vadsø, Norway - Sunrise, sunset, dawn and dusk times for the whole year - Gaisma]</ref>, [https://en.wikipedia.org/wiki/Finnmark Finnmark] [https://en.wikipedia.org/wiki/Counties_of_Norway country], [https://en.wikipedia.org/wiki/Norway Norway] by [[Odd Gunnar Malin]] in [[Cpp|C++]], first released in November 2001. PolarChess, version 1.2 as [[:Category:Open Source|open source]], includes the PolarEngine package with [[Search|search]] and [[Evaluation|evaluation]] decoupled from the [[Board Representation|board representation]]. It has a [[0x88]] board, and applies [[Alpha-Beta|alpha-beta]] with [[Transposition Table|transposition table]] and [[Null Move Pruning|null move pruning]] inside an [[Iterative Deepening|iterative deepening]] framework with [[Aspiration Windows|aspiration windows]]. [[Check Extensions|Checks]], [[Passed Pawn Extensions|pawn moves to the 7th rank]], and [[Mate Threat Extensions|mate threatening moves]] are [[Extensions|extended]], [[Killer Heuristic|killer-]] and [[History Heuristic|history heuristic]] help to [[Move Ordering|order moves]]. [[Evaluation]] counts [[Material|material]] aware of the [[Bishop Pair|bishop pair]] and trade bonuses for pieces if ahead and pawns if behind, and positionally considers [[Pawn Structure|pawn structure]] utilizing a [[Pawn Hash Table|pawn hash table]], [[Passed Pawn|passed pawns]], [[Mobility|mobility]], [[Rook on Open File|rook on open file]], [[Bad Bishop|bad bishop]], and [[King Safety#PawnShield|pawn shield]] for [[King Safety|king safety]] to name the most important terms.
PolarChess played the [[CCT4]] and [[CCT5]] tournaments.
=Selected Games=
[[CCT4]], round 4, [[PolarChess]] - [[Warlord]] <ref>[http://www.vrichey.de/cct4/ CCT4 - PGN-Download] hosted by [[Volker Richey]]</ref> <ref>[https://www.stmintz.com/ccc/index.php?id=208631 PolarChess just beat Warlord] by [[William H. Rogers]], [[CCC]], January 20, 2002</ref>
<pre>
[Event "CCT4"]
[Site "Internet Chess Club"]
[Date "2002.01.20"]
[Round "4"]
[White "PolarChess"]
[Black "Warlord Beta V1"]
[Result "1-0"]
1.e4 Nf6 2.e5 Ne4 3.d3 Nc5 4.d4 Ne6 5.d5 Nc5 6.Qd4 e6 7.d6 cxd6 8.exd6 Qb6
9.Qc3 a5 10.Bf4 f6 11.Na3 e5 12.Nb5 Bxd6 13.Nxd6+ Qxd6 14.Be3 b6 15.Rd1 Qc6
16.Bxc5 bxc5 17.Be2 Bb7 18.Bf3 e4 19.Be2 d5 20.Nh3 Qb6 21.Nf4 d4 22.Qh3 Nd7
23.Ng6 Rg8 24.Qxh7 Qe6 25.b3 Nf8 26.Bb5+ Kf7 27.Qh5 Nxg6 28.Bc4 Qxc4 29.bxc4
Rac8 30.Rb1 Ba8 31.Rb6 Rh8 32.Qf5 Rhe8 33.O-O Ne5 34.Ra6 Kg8 35.Rxa5 e3
36.fxe3 dxe3 37.Re1 Rcd8 38.Qh5 g6 39.Qh4 Rd2 40.Rxe3 Red8 41.Rxc5 Rxg2+
42.Kf1 Rd1+ 43.Re1 Rxe1+ 44.Qxe1 Rxh2 45.Qb4 Rh1+ 46.Kf2 Rh2+ 47.Kg3 Rg2+
48.Kh3 Kf7 49.Qa3 Be4 50.Rxe5 fxe5 51.Qe3 Bb7 52.Qxe5 Rxc2 53.Qc7+ Kf6 54.Qxb7
Rc3+ 55.Kg2 Rc2+ 56.Kf3 Rc3+ 57.Ke4 Rxc4+ 58.Kd3 Rh4 59.Qc6+ Kg7 60.Qc7+ Kh6
61.Qe5 Rh3+ 62.Ke4 Rh4+ 63.Kf3 Ra4 64.Qh8+ Kg5 65.Qd8+ Kh6 66.Qf8+ Kh5 67.Qf7
Ra3+ 68.Kf2 Ra4 69.Qd5+ Kh4 70.Qh1+ Kg4 71.Qd1+ 1-0
</pre>
=See also=
* [[Amundsen]]
* [[Siberian Chess]]
=Forum Posts=
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=35161 PolarChess] by [[Odd Gunnar Malin]], [[Computer Chess Forums|Winboard Forum]], November 26, 2001
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=35265 PolarChess] by [[Odd Gunnar Malin]], [[Computer Chess Forums|Winboard Forum]], December 19, 2001
=External Links=
==Chess Engine==
* [http://web.archive.org/web/20100922051419/http://home.online.no/~malin/sjakk/ Chess and Data] - [https://en.wikipedia.org/wiki/Wayback_Machine WaybackMachine]
* [http://www.computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?match_length=30&print=Details+%28text%29&eng=PolarChess%201.3 PolarChess 1.3] in [[CCRL|CCRL 40/4]]
==Misc==
* [https://en.wikipedia.org/wiki/Polar Polar (disambiguation) from Wikipedia]
: [https://en.wikipedia.org/wiki/Pole_and_polar Pole and polar from Wikipedia]
: [https://en.wikipedia.org/wiki/Polar_coordinate_system Polar coordinate system from Wikipedia]
: [https://en.wikipedia.org/wiki/Polar_set Polar set from Wikipedia]
: [https://en.wikipedia.org/wiki/Yes%E2%80%93no_question Polar question from Wikipedia]
* [https://en.wikipedia.org/wiki/Polar_circle Polar circle from Wikipedia]
* [https://en.wikipedia.org/wiki/Polaris Polaris]
* [https://en.wikipedia.org/wiki/Polar_Star_%28novel%29 Polar Star (novel) from Wikipedia]
* Anne Paceo's Circles - Toundra, [https://en.wikipedia.org/wiki/Marseille Marseille] [http://www.telerama.fr/festivals-ete/2015/a-marseille-melody-gardot-en-diva-passionnee,129640.php Jazz des Cinq Continents], July 21, 2015 , [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [https://fr.wikipedia.org/wiki/Anne_Paceo Anne Paceo], [[:Category:Leila Martial|Leïla Martial]], [https://fr.wikipedia.org/wiki/Christophe_Panzani Christophe Panzani], [[:Category:Tony Paeleman|Tony Paeleman]]
: {{#evu:https://www.youtube.com/watch?v=BeyP3UD8Dhk|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:WinBoard]]
[[Category:Geography]]
[[Category:Leïla Martial]]
[[Category:Tony Paeleman]]
[[FILE:thecaseofthebipolarchessqueen.jpg|border|right|thumb|link=http://www.flickr.com/photos/29528454@N04/5428134932| The case of the bi-polar chess queen <ref>[http://www.flickr.com/photos/29528454@N04/5428134932 THE CASE OF THE BI-POLAR CHESS QUEEN: A Short Story | Flickr - Fotosharing!] by [http://www.flickr.com/photos/huffstutterrobertl/ Robert Huffstutter]</ref> ]]
'''PolarChess''',<br/>
a [[WinBoard]] compliant chess engine, written at [http://toolserver.org/~geohack/geohack.php?pagename=Vads%C3%B8¶ms=70_04_24_N_029_44_59_E_region:NO_type:city 70° 4′ 24″ N], 3° 30′ 40″ north the [https://en.wikipedia.org/wiki/Arctic_Circle Arctic Circle] in [https://en.wikipedia.org/wiki/Vads%C3%B8 Vadsø] <ref>[http://www.gaisma.com/en/location/vadso.html Vadsø, Norway - Sunrise, sunset, dawn and dusk times for the whole year - Gaisma]</ref>, [https://en.wikipedia.org/wiki/Finnmark Finnmark] [https://en.wikipedia.org/wiki/Counties_of_Norway country], [https://en.wikipedia.org/wiki/Norway Norway] by [[Odd Gunnar Malin]] in [[Cpp|C++]], first released in November 2001. PolarChess, version 1.2 as [[:Category:Open Source|open source]], includes the PolarEngine package with [[Search|search]] and [[Evaluation|evaluation]] decoupled from the [[Board Representation|board representation]]. It has a [[0x88]] board, and applies [[Alpha-Beta|alpha-beta]] with [[Transposition Table|transposition table]] and [[Null Move Pruning|null move pruning]] inside an [[Iterative Deepening|iterative deepening]] framework with [[Aspiration Windows|aspiration windows]]. [[Check Extensions|Checks]], [[Passed Pawn Extensions|pawn moves to the 7th rank]], and [[Mate Threat Extensions|mate threatening moves]] are [[Extensions|extended]], [[Killer Heuristic|killer-]] and [[History Heuristic|history heuristic]] help to [[Move Ordering|order moves]]. [[Evaluation]] counts [[Material|material]] aware of the [[Bishop Pair|bishop pair]] and trade bonuses for pieces if ahead and pawns if behind, and positionally considers [[Pawn Structure|pawn structure]] utilizing a [[Pawn Hash Table|pawn hash table]], [[Passed Pawn|passed pawns]], [[Mobility|mobility]], [[Rook on Open File|rook on open file]], [[Bad Bishop|bad bishop]], and [[King Safety#PawnShield|pawn shield]] for [[King Safety|king safety]] to name the most important terms.
PolarChess played the [[CCT4]] and [[CCT5]] tournaments.
=Selected Games=
[[CCT4]], round 4, [[PolarChess]] - [[Warlord]] <ref>[http://www.vrichey.de/cct4/ CCT4 - PGN-Download] hosted by [[Volker Richey]]</ref> <ref>[https://www.stmintz.com/ccc/index.php?id=208631 PolarChess just beat Warlord] by [[William H. Rogers]], [[CCC]], January 20, 2002</ref>
<pre>
[Event "CCT4"]
[Site "Internet Chess Club"]
[Date "2002.01.20"]
[Round "4"]
[White "PolarChess"]
[Black "Warlord Beta V1"]
[Result "1-0"]
1.e4 Nf6 2.e5 Ne4 3.d3 Nc5 4.d4 Ne6 5.d5 Nc5 6.Qd4 e6 7.d6 cxd6 8.exd6 Qb6
9.Qc3 a5 10.Bf4 f6 11.Na3 e5 12.Nb5 Bxd6 13.Nxd6+ Qxd6 14.Be3 b6 15.Rd1 Qc6
16.Bxc5 bxc5 17.Be2 Bb7 18.Bf3 e4 19.Be2 d5 20.Nh3 Qb6 21.Nf4 d4 22.Qh3 Nd7
23.Ng6 Rg8 24.Qxh7 Qe6 25.b3 Nf8 26.Bb5+ Kf7 27.Qh5 Nxg6 28.Bc4 Qxc4 29.bxc4
Rac8 30.Rb1 Ba8 31.Rb6 Rh8 32.Qf5 Rhe8 33.O-O Ne5 34.Ra6 Kg8 35.Rxa5 e3
36.fxe3 dxe3 37.Re1 Rcd8 38.Qh5 g6 39.Qh4 Rd2 40.Rxe3 Red8 41.Rxc5 Rxg2+
42.Kf1 Rd1+ 43.Re1 Rxe1+ 44.Qxe1 Rxh2 45.Qb4 Rh1+ 46.Kf2 Rh2+ 47.Kg3 Rg2+
48.Kh3 Kf7 49.Qa3 Be4 50.Rxe5 fxe5 51.Qe3 Bb7 52.Qxe5 Rxc2 53.Qc7+ Kf6 54.Qxb7
Rc3+ 55.Kg2 Rc2+ 56.Kf3 Rc3+ 57.Ke4 Rxc4+ 58.Kd3 Rh4 59.Qc6+ Kg7 60.Qc7+ Kh6
61.Qe5 Rh3+ 62.Ke4 Rh4+ 63.Kf3 Ra4 64.Qh8+ Kg5 65.Qd8+ Kh6 66.Qf8+ Kh5 67.Qf7
Ra3+ 68.Kf2 Ra4 69.Qd5+ Kh4 70.Qh1+ Kg4 71.Qd1+ 1-0
</pre>
=See also=
* [[Amundsen]]
* [[Siberian Chess]]
=Forum Posts=
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=35161 PolarChess] by [[Odd Gunnar Malin]], [[Computer Chess Forums|Winboard Forum]], November 26, 2001
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=35265 PolarChess] by [[Odd Gunnar Malin]], [[Computer Chess Forums|Winboard Forum]], December 19, 2001
=External Links=
==Chess Engine==
* [http://web.archive.org/web/20100922051419/http://home.online.no/~malin/sjakk/ Chess and Data] - [https://en.wikipedia.org/wiki/Wayback_Machine WaybackMachine]
* [http://www.computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?match_length=30&print=Details+%28text%29&eng=PolarChess%201.3 PolarChess 1.3] in [[CCRL|CCRL 40/4]]
==Misc==
* [https://en.wikipedia.org/wiki/Polar Polar (disambiguation) from Wikipedia]
: [https://en.wikipedia.org/wiki/Pole_and_polar Pole and polar from Wikipedia]
: [https://en.wikipedia.org/wiki/Polar_coordinate_system Polar coordinate system from Wikipedia]
: [https://en.wikipedia.org/wiki/Polar_set Polar set from Wikipedia]
: [https://en.wikipedia.org/wiki/Yes%E2%80%93no_question Polar question from Wikipedia]
* [https://en.wikipedia.org/wiki/Polar_circle Polar circle from Wikipedia]
* [https://en.wikipedia.org/wiki/Polaris Polaris]
* [https://en.wikipedia.org/wiki/Polar_Star_%28novel%29 Polar Star (novel) from Wikipedia]
* Anne Paceo's Circles - Toundra, [https://en.wikipedia.org/wiki/Marseille Marseille] [http://www.telerama.fr/festivals-ete/2015/a-marseille-melody-gardot-en-diva-passionnee,129640.php Jazz des Cinq Continents], July 21, 2015 , [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [https://fr.wikipedia.org/wiki/Anne_Paceo Anne Paceo], [[:Category:Leila Martial|Leïla Martial]], [https://fr.wikipedia.org/wiki/Christophe_Panzani Christophe Panzani], [[:Category:Tony Paeleman|Tony Paeleman]]
: {{#evu:https://www.youtube.com/watch?v=BeyP3UD8Dhk|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:WinBoard]]
[[Category:Geography]]
[[Category:Leïla Martial]]
[[Category:Tony Paeleman]]
