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Created page with "'''Home * Engines * Vapor''' FILE:Phase-diag2.svg|border|right|thumb| Pressure-Temperature Phase Diagram <ref>The [https://en.wikipedia.org/wiki/Critical_..."
'''[[Main Page|Home]] * [[Engines]] * Vapor'''
[[FILE:Phase-diag2.svg|border|right|thumb| Pressure-Temperature Phase Diagram <ref>The [https://en.wikipedia.org/wiki/Critical_point_(thermodynamics) vapor-liquid critical point] in a [https://en.wikipedia.org/wiki/Pressure pressure]-[https://en.wikipedia.org/wiki/Temperature temperature] [https://en.wikipedia.org/wiki/Phase_diagram phase diagram] is at the high-temperature extreme of the [https://en.wikipedia.org/wiki/Supercritical_liquid%E2%80%93gas_boundaries liquid–gas phase boundary] (The dotted green line gives the [https://en.wikipedia.org/wiki/Superheated_water#Explanation_of_anomalous_behaviour anomalous behaviour of water]). Image by Matthieumarechal, January 28, 2008, [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Vapor''', (Vapor Chess)<br/>
an [[UCI]] compliant chess engine by [[Mike Leany]], written in [[C]], since October 2010 no longer [https://en.wikipedia.org/wiki/Vaporware vaporware] <ref>[http://vapor.mikeleany.com/home/vaporwarenomore Vaporware No More - Vapor Chess] by [[Mike Leany]], October 11, 2010</ref>, and since November 2019 published as [[:Category:Open Source|open source]] on Github <ref>[http://vapor.mikeleany.com/home/sourcecodereleased Source Code Released] by [[Mike Leany]], November 09, 2019</ref>.
=Description=
Vapor is a rudimentary, didactic engine and lacks state of the art [[Search|search]] techniques and [[Evaluation|evaluation]] terms.
It [[Board Representation|represents the board]] with a [[Square Mapping Considerations#LittleEndianFileRankMapping|little-endian file-rank mapped]] [[Bitboard Board-Definition|bitboard definition]],
and applies [[Hyperbola Quintessence]] to determine [[Sliding Piece Attacks|sliding piece attacks]] <ref>[https://github.com/mikeleany/vapor/blob/master/src/moves.h vapor/moves.h at master · mikeleany/vapor · GitHub]</ref>.
Search is plain [[Alpha-Beta|alpha-beta]] with [[Transposition Table|transposition table]], [[Check Extensions|check extension]] and [[Quiescence Search|quiescence]] inside the [[Iterative Deepening|iterative deepening]] loop <ref>[https://github.com/mikeleany/vapor/blob/master/src/search.c vapor/search.c at master · mikeleany/vapor · GitHub]</ref>,
considering [[Material|material]] and [[Piece-Square Tables|piece-square tables]] for [[Pawn|pawns]] and [[Knight|knights]] as [[Evaluation|evaluation]] terms at the [[Leaf Node|leaves]] <ref>[https://github.com/mikeleany/vapor/blob/master/src/eval.c vapor/eval.c at master · mikeleany/vapor · GitHub]</ref>.
=See also=
* [[Zilch]]
* [[Tinman]]
=Postings=
* [http://vapor.mikeleany.com/home/vaporwarenomore Vaporware No More - Vapor Chess] by [[Mike Leany]], October 11, 2010
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=44755 Vapor Chess v0.02 Release for Linux] by [[Mike Leany]], [[CCC]], August 10, 2012
* [http://vapor.mikeleany.com/home/sourcecodereleased Source Code Released] by [[Mike Leany]], November 09, 2019
=External Links=
==Chess Engine==
* [https://github.com/mikeleany/vapor GitHub - mikeleany/vapor: My old chess engine written in C]
* [http://vapor.mikeleany.com/ Vapor Chess]
* [http://www.computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=Vapor%200.01r12#Vapor_0_01r12 Vapor] in [[CCRL|CCRL Blitz]]
==Misc==
* [https://en.wiktionary.org/wiki/vapor vapor - Wiktionary]
* [https://en.wikipedia.org/wiki/Vapor Vapor from Wikipedia]
* [https://en.wikipedia.org/wiki/Vapor_(disambiguation) Vapor (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/U-Foes U-Foes, Vapor (Marvel Comics) from Wikipedia]
* [https://en.wikipedia.org/wiki/Vaporware from Wikipedia]
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Open Source]]
[[Category:UCI]]
[[Category:X86]]
[[Category:X64]]
[[Category:PC]]
[[Category:Windows]]
[[Category:Linux]]
[[Category:Comics]]
[[FILE:Phase-diag2.svg|border|right|thumb| Pressure-Temperature Phase Diagram <ref>The [https://en.wikipedia.org/wiki/Critical_point_(thermodynamics) vapor-liquid critical point] in a [https://en.wikipedia.org/wiki/Pressure pressure]-[https://en.wikipedia.org/wiki/Temperature temperature] [https://en.wikipedia.org/wiki/Phase_diagram phase diagram] is at the high-temperature extreme of the [https://en.wikipedia.org/wiki/Supercritical_liquid%E2%80%93gas_boundaries liquid–gas phase boundary] (The dotted green line gives the [https://en.wikipedia.org/wiki/Superheated_water#Explanation_of_anomalous_behaviour anomalous behaviour of water]). Image by Matthieumarechal, January 28, 2008, [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Vapor''', (Vapor Chess)<br/>
an [[UCI]] compliant chess engine by [[Mike Leany]], written in [[C]], since October 2010 no longer [https://en.wikipedia.org/wiki/Vaporware vaporware] <ref>[http://vapor.mikeleany.com/home/vaporwarenomore Vaporware No More - Vapor Chess] by [[Mike Leany]], October 11, 2010</ref>, and since November 2019 published as [[:Category:Open Source|open source]] on Github <ref>[http://vapor.mikeleany.com/home/sourcecodereleased Source Code Released] by [[Mike Leany]], November 09, 2019</ref>.
=Description=
Vapor is a rudimentary, didactic engine and lacks state of the art [[Search|search]] techniques and [[Evaluation|evaluation]] terms.
It [[Board Representation|represents the board]] with a [[Square Mapping Considerations#LittleEndianFileRankMapping|little-endian file-rank mapped]] [[Bitboard Board-Definition|bitboard definition]],
and applies [[Hyperbola Quintessence]] to determine [[Sliding Piece Attacks|sliding piece attacks]] <ref>[https://github.com/mikeleany/vapor/blob/master/src/moves.h vapor/moves.h at master · mikeleany/vapor · GitHub]</ref>.
Search is plain [[Alpha-Beta|alpha-beta]] with [[Transposition Table|transposition table]], [[Check Extensions|check extension]] and [[Quiescence Search|quiescence]] inside the [[Iterative Deepening|iterative deepening]] loop <ref>[https://github.com/mikeleany/vapor/blob/master/src/search.c vapor/search.c at master · mikeleany/vapor · GitHub]</ref>,
considering [[Material|material]] and [[Piece-Square Tables|piece-square tables]] for [[Pawn|pawns]] and [[Knight|knights]] as [[Evaluation|evaluation]] terms at the [[Leaf Node|leaves]] <ref>[https://github.com/mikeleany/vapor/blob/master/src/eval.c vapor/eval.c at master · mikeleany/vapor · GitHub]</ref>.
=See also=
* [[Zilch]]
* [[Tinman]]
=Postings=
* [http://vapor.mikeleany.com/home/vaporwarenomore Vaporware No More - Vapor Chess] by [[Mike Leany]], October 11, 2010
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=44755 Vapor Chess v0.02 Release for Linux] by [[Mike Leany]], [[CCC]], August 10, 2012
* [http://vapor.mikeleany.com/home/sourcecodereleased Source Code Released] by [[Mike Leany]], November 09, 2019
=External Links=
==Chess Engine==
* [https://github.com/mikeleany/vapor GitHub - mikeleany/vapor: My old chess engine written in C]
* [http://vapor.mikeleany.com/ Vapor Chess]
* [http://www.computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=Vapor%200.01r12#Vapor_0_01r12 Vapor] in [[CCRL|CCRL Blitz]]
==Misc==
* [https://en.wiktionary.org/wiki/vapor vapor - Wiktionary]
* [https://en.wikipedia.org/wiki/Vapor Vapor from Wikipedia]
* [https://en.wikipedia.org/wiki/Vapor_(disambiguation) Vapor (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/U-Foes U-Foes, Vapor (Marvel Comics) from Wikipedia]
* [https://en.wikipedia.org/wiki/Vaporware from Wikipedia]
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Open Source]]
[[Category:UCI]]
[[Category:X86]]
[[Category:X64]]
[[Category:PC]]
[[Category:Windows]]
[[Category:Linux]]
[[Category:Comics]]
