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Created page with "'''Home * Engines * Vaxchess''' FILE:DEC MicroVAX CPU die.JPG|border|right|thumb| DEC MicroVAX CPU die <ref>Die shot of DEC [https://en.wikipedia.org/wiki..."
'''[[Main Page|Home]] * [[Engines]] * Vaxchess'''
[[FILE:DEC MicroVAX CPU die.JPG|border|right|thumb| DEC MicroVAX CPU die <ref>Die shot of DEC [https://en.wikipedia.org/wiki/MicroVAX_78032 MicroVAX 78032-GD] microprocessor from [https://en.wikipedia.org/wiki/VAXstation#VAXstation_2000 VAXstation2000] with chip number DC333R and part number 21-20887-05 on heatsink. Image by [https://commons.wikimedia.org/wiki/User:Birdman86 Pauli Rautakorpi], August 23, 2013, </ref> ]]
'''Vaxchess''',<br/>
a chess program by [[Tony Guilfoyle]] and [[Richard Hooker]], running on a [[VAX#MicroVAX|MicroVAX II]] [https://en.wikipedia.org/wiki/Minicomputers minicomputer]. It played two [[Tournaments and Matches|tournaments]] in 1986, the [[WCCC 1986]] in [https://en.wikipedia.org/wiki/Cologne Cologne], and the [[ACM 1986]] in [https://en.wikipedia.org/wiki/Dallas Dallas].
Vaxchess was written in [[C]] and [[Assembly|assembly]] <ref>[https://en.wikipedia.org/wiki/VAX_Macro VAX Macro from Wikipedia]</ref>, and searched about 1K [[Nodes per Second|nodes per second]] <ref>[http://www.computerhistory.org/chess/full_record.php?iid=doc-431614f6ca4a7 The ACM's Seventeenth North American Computer Chess Championship and The Sixth World Microcomputer Chess Championship] from [[The Computer History Museum]]</ref>.
=Selected Games=
==Vaxchess - Lachex==
The game [[Vaxchess]] vs [[Lachex]], round 3 <ref>[https://www.game-ai-forum.org/icga-tournaments/round.php?tournament=62&round=3&id=8 Cologne 1986 - Chess - Round 3 - Game 8 (ICGA Tournaments)]</ref>, [[WCCC 1986]] was mentioned by commentator [https://en.wikipedia.org/wiki/Vlastimil_Hort GM Vlastimil Hort], who announced three different Mate threats with no adequate defence, which somehow did not occur <ref>[[Helmut Horacek]] ('''1986'''). ''The Fifth World Computer Chess Championship Cologne, 1986''. Research Unit for Information Science and Artificial Intelligence, [[University of Hamburg]], from [http://www.computerhistory.org/chess/full_record.php?iid=doc-434fea055cbb3 Kings Move - Welcome to the 1989 AGT World Computer Chess Championship.] p 21, [http://archive.computerhistory.org/projects/chess/related_materials/text/3-1%20and%203-2%20and%203-3%20and%204-3.1989_WCCC/1989%20WCCC.062302028.sm.pdf pdf] from [[The Computer History Museum]]</ref>:
<pre>
[Event "WCCC 1986"]
[Site "Cologne, Germany"]
[Date "1986.06.13"]
[Round "3"]
[White "Vaxchess"]
[Black "Lachex"]
[Result "1/2-1/2"]
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.cxd5 Nxd5 8.Qd2 Bb4
9.Rc1 h6 10.Bf4 O-O 11.Bg3 c5 12.Bd3 f5 13.O-O cxd4 14.exd4 f4 15.Qe1 N7f6
16.Bh4 g5 17.Bxg5 hxg5 18.Qe5 Nxc3 19.bxc3 Bxc3 20.Qxa5 Bxa5 21.Rc5 Bb4 22.Re5
g4 23.Rg5+ Kf7 24.Ne5+ Ke8 25.Rc1 Kd8 26.Rg7 Ba3 27.Rb1 f3 28.Rb3 Bc1 29.gxf3
gxf3 30.Nf7+ Ke7 31.Bg6 Nd5 32.Ne5+ Kf6 33.Rh7 a5 34.Rxf3+ Bf4 35.h4 Ra6 36.Kf1
Rc6 37.Be4 Rc1+ 38.Ke2 Rg1 39.Bxd5 Kf5 40.Rh5+ Kf6 41.Be4 Kg7 42.Nd3 Bd6 43.Rxf8
Kxf8 44.Rg5 Rxg5 45.hxg5 b6 46.g6 Ba6 47.a4 e5 48.dxe5 Bxe5 49.Ke3 Bc7 50.f3 Bc8
51.Nf4 Bxf4+ 52.Kxf4 Bd7 53.Bc2 Kg7 54.Kg5 b5 55.axb5 Bxb5 56.f4 Bc4 57.f5 Kg8
58.f6 Kf8 59.Kf4 Ke8 60.Ke5 Kf8 61.Kd4 Ba2 62.g7+ Kf7 63.Bh7 Kxf6 64.g8=B Bxg8
1/2-1/2
</pre>
==Vaxchess - Chat==
[[WCCC 1986]], round 5, [[Vaxchess]] - [[Chat]] <ref>[https://www.game-ai-forum.org/icga-tournaments/round.php?tournament=62&round=5&id=8 Cologne 1986 - Chess - Round 5 - Game 8 (ICGA Tournaments)]</ref>
<pre>
[Event "WCCC 1986"]
[Site "Cologne, Germany"]
[Date "1986.06.15"]
[Round "5"]
[White "Vaxchess"]
[Black "Chat"]
[Result "1/2-1/2"]
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3 Nc6 7.Nf3 Ng4 8.Bg5 h6 9.Bh4
Bd7 10.h3 Nf6 11.d5 Ne5 12.Qb3 Nxf3+ 13.Bxf3 b6 14.Rd1 e5 15.dxe6 Bc6 16.e5 Bxf3
17.exf7+ Rxf7 18.gxf3 Qe8 19.f4 dxe5 20.f5 gxf5 21.Rg1 Qe6 22.Bxf6 Qxf6 23.c5
Rd8 24.Rxd8+ Qxd8 25.Rg6 Qh4 26.cxb6 cxb6 27.Qd5 Qxh3 28.Rg3 Qh4 29.Qa8+ Kh7
30.Qd5 Rc7 31.Qf3 f4 32.Qe4+ Kh8 33.Qa8+ Kh7 34.Qe4+ Kh8 35.Qa8+ Kh7 36.Qe4+
1/2-1/2
</pre>
=External Links=
* [https://www.game-ai-forum.org/icga-tournaments/program.php?id=407 Vaxchess' ICGA Tournaments]
* [https://en.wikipedia.org/wiki/MicroVAX MicroVAX from Wikipedia]
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Chess Suffix]]
[[Category:Die]]
[[FILE:DEC MicroVAX CPU die.JPG|border|right|thumb| DEC MicroVAX CPU die <ref>Die shot of DEC [https://en.wikipedia.org/wiki/MicroVAX_78032 MicroVAX 78032-GD] microprocessor from [https://en.wikipedia.org/wiki/VAXstation#VAXstation_2000 VAXstation2000] with chip number DC333R and part number 21-20887-05 on heatsink. Image by [https://commons.wikimedia.org/wiki/User:Birdman86 Pauli Rautakorpi], August 23, 2013, </ref> ]]
'''Vaxchess''',<br/>
a chess program by [[Tony Guilfoyle]] and [[Richard Hooker]], running on a [[VAX#MicroVAX|MicroVAX II]] [https://en.wikipedia.org/wiki/Minicomputers minicomputer]. It played two [[Tournaments and Matches|tournaments]] in 1986, the [[WCCC 1986]] in [https://en.wikipedia.org/wiki/Cologne Cologne], and the [[ACM 1986]] in [https://en.wikipedia.org/wiki/Dallas Dallas].
Vaxchess was written in [[C]] and [[Assembly|assembly]] <ref>[https://en.wikipedia.org/wiki/VAX_Macro VAX Macro from Wikipedia]</ref>, and searched about 1K [[Nodes per Second|nodes per second]] <ref>[http://www.computerhistory.org/chess/full_record.php?iid=doc-431614f6ca4a7 The ACM's Seventeenth North American Computer Chess Championship and The Sixth World Microcomputer Chess Championship] from [[The Computer History Museum]]</ref>.
=Selected Games=
==Vaxchess - Lachex==
The game [[Vaxchess]] vs [[Lachex]], round 3 <ref>[https://www.game-ai-forum.org/icga-tournaments/round.php?tournament=62&round=3&id=8 Cologne 1986 - Chess - Round 3 - Game 8 (ICGA Tournaments)]</ref>, [[WCCC 1986]] was mentioned by commentator [https://en.wikipedia.org/wiki/Vlastimil_Hort GM Vlastimil Hort], who announced three different Mate threats with no adequate defence, which somehow did not occur <ref>[[Helmut Horacek]] ('''1986'''). ''The Fifth World Computer Chess Championship Cologne, 1986''. Research Unit for Information Science and Artificial Intelligence, [[University of Hamburg]], from [http://www.computerhistory.org/chess/full_record.php?iid=doc-434fea055cbb3 Kings Move - Welcome to the 1989 AGT World Computer Chess Championship.] p 21, [http://archive.computerhistory.org/projects/chess/related_materials/text/3-1%20and%203-2%20and%203-3%20and%204-3.1989_WCCC/1989%20WCCC.062302028.sm.pdf pdf] from [[The Computer History Museum]]</ref>:
<pre>
[Event "WCCC 1986"]
[Site "Cologne, Germany"]
[Date "1986.06.13"]
[Round "3"]
[White "Vaxchess"]
[Black "Lachex"]
[Result "1/2-1/2"]
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.cxd5 Nxd5 8.Qd2 Bb4
9.Rc1 h6 10.Bf4 O-O 11.Bg3 c5 12.Bd3 f5 13.O-O cxd4 14.exd4 f4 15.Qe1 N7f6
16.Bh4 g5 17.Bxg5 hxg5 18.Qe5 Nxc3 19.bxc3 Bxc3 20.Qxa5 Bxa5 21.Rc5 Bb4 22.Re5
g4 23.Rg5+ Kf7 24.Ne5+ Ke8 25.Rc1 Kd8 26.Rg7 Ba3 27.Rb1 f3 28.Rb3 Bc1 29.gxf3
gxf3 30.Nf7+ Ke7 31.Bg6 Nd5 32.Ne5+ Kf6 33.Rh7 a5 34.Rxf3+ Bf4 35.h4 Ra6 36.Kf1
Rc6 37.Be4 Rc1+ 38.Ke2 Rg1 39.Bxd5 Kf5 40.Rh5+ Kf6 41.Be4 Kg7 42.Nd3 Bd6 43.Rxf8
Kxf8 44.Rg5 Rxg5 45.hxg5 b6 46.g6 Ba6 47.a4 e5 48.dxe5 Bxe5 49.Ke3 Bc7 50.f3 Bc8
51.Nf4 Bxf4+ 52.Kxf4 Bd7 53.Bc2 Kg7 54.Kg5 b5 55.axb5 Bxb5 56.f4 Bc4 57.f5 Kg8
58.f6 Kf8 59.Kf4 Ke8 60.Ke5 Kf8 61.Kd4 Ba2 62.g7+ Kf7 63.Bh7 Kxf6 64.g8=B Bxg8
1/2-1/2
</pre>
==Vaxchess - Chat==
[[WCCC 1986]], round 5, [[Vaxchess]] - [[Chat]] <ref>[https://www.game-ai-forum.org/icga-tournaments/round.php?tournament=62&round=5&id=8 Cologne 1986 - Chess - Round 5 - Game 8 (ICGA Tournaments)]</ref>
<pre>
[Event "WCCC 1986"]
[Site "Cologne, Germany"]
[Date "1986.06.15"]
[Round "5"]
[White "Vaxchess"]
[Black "Chat"]
[Result "1/2-1/2"]
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3 Nc6 7.Nf3 Ng4 8.Bg5 h6 9.Bh4
Bd7 10.h3 Nf6 11.d5 Ne5 12.Qb3 Nxf3+ 13.Bxf3 b6 14.Rd1 e5 15.dxe6 Bc6 16.e5 Bxf3
17.exf7+ Rxf7 18.gxf3 Qe8 19.f4 dxe5 20.f5 gxf5 21.Rg1 Qe6 22.Bxf6 Qxf6 23.c5
Rd8 24.Rxd8+ Qxd8 25.Rg6 Qh4 26.cxb6 cxb6 27.Qd5 Qxh3 28.Rg3 Qh4 29.Qa8+ Kh7
30.Qd5 Rc7 31.Qf3 f4 32.Qe4+ Kh8 33.Qa8+ Kh7 34.Qe4+ Kh8 35.Qa8+ Kh7 36.Qe4+
1/2-1/2
</pre>
=External Links=
* [https://www.game-ai-forum.org/icga-tournaments/program.php?id=407 Vaxchess' ICGA Tournaments]
* [https://en.wikipedia.org/wiki/MicroVAX MicroVAX from Wikipedia]
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Chess Suffix]]
[[Category:Die]]
