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GreKo

descriptionGreKo EmptyGreKo

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http://greko.110mb.com/index.html

descriptionGreKo EmptyGreko 9.0 JA

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Greko 9.0 JA (Windows/Linux/Android 64/32 p.g.o)

Download:
http://dl.dropbox.com/u/5047625/greko-90-ja.zip
Mirror:
http://cl.ly/CzOE/greko-90-ja.zip

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GreKo 9.2 (WB/UCI)
C++ source; limit strength; Win32
- "This is a refactoring version without any changes in search/eval.
A lot of code was cleaned up, to make in more compact and readable.
Elo/Knps formula was tuned a little, to make handicap levels more realistic.
Source code should be compiled with modern compilers, because some
features of new C++ Standard are used."
http://greko.110mb.com/index.html

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What is the expected elo gain over the previous version?

GreKo 9.0 x64 2365 (CEGT 40\20 Rating List)

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Greko 9.2 JA (UCI) (Wb)

Windows/Linux/Android 64/32

http://dl.dropbox.com/u/5047625/greko-92-ja.zip
http://cl.ly/GeRW/greko-92-ja.zip

GreKo Greko10

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Greko 9.2 JA (UCI) (Wb)

Windows/Linux/Android 64/32

Update:
*faster Intel win64 compile added

http://dl.dropbox.com/u/5047625/greko-92-ja.zip
http://cl.ly/GegG/greko-92-ja.zip


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GreKo 9.3 (UCI, Linux & source)

(fix) * Fixed pv output in UCI mode.
(fix) * Claim draw after 3rd repetition.
(new) * 'uci go depth ...' option added.
(chg) * Checks in qsearch code modified.

http://greko.110mb.com/index.html

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Greko 9.3 JA (UCI) (Wb)

Windows/Linux/Android 64/32

https://dl.dropbox.com/u/5047625/greko-93-ja.zip
http://cl.ly/HLGB/greko-93-ja.zip

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errors:
illegal_GreKo 9.3 JA_181
illegal_GreKo 9.2 JA_638
confused

Code:

Games Completed = 173 of 1000 (Avg game length = 2.535 sec)
Settings = RR/32MB/2000ms+100ms/M 700000cp for 7 moves, D 150 moves/EPD:E:\LittleBlitzer\openings.epd(4000)
Time = 129 sec elapsed, 617 sec remaining

 1.  GreKo 9.3 JA               86.5/173   81-81-11     (L: m=13 t=0 i=68 a=0)   (D: r=8 i=3 f=0 s=0 a=0)   (tpm=112.6 d=9.34 nps=1700462)
 2.  GreKo 9.2 JA               86.5/173   81-81-11     (L: m=8 t=0 i=73 a=0)   (D: r=8 i=3 f=0 s=0 a=0)   (tpm=111.6 d=9.25 nps=1699203)

Code:

--Start Board-----------------------------------------------------------
bR =  0x8100000000000000 wR =  0x0000000000000081 Castling =    0xF
bB =  0x0048000000000000 wB =  0x0000000000004004 EPSquare =    -1
bN =  0x4000000000000000 wN =  0x0000000000040000 White Mat =    0
bQ =  0x2000000000000000 wQ =  0x0000000000002000 Black Mat =    0
bK =  0x0800000000000000 wK =  0x0000000000000008 50 Moves =    0
bP =  0x0087482000000000 wP =  0x0000000010A80700 Side To Move = W
bA =  0xE9CF482000000000 wA =  0x0000000010AC678D Half Move =    0
FEN = rnq1k2r/pb2bppp/1p2p3/2p5/3P4/P1P1PN2/1BQ2PPP/R3KB1R w KQkq - 0 0
  a b c d e f g h
  ---------------
8| r n q  k    r |8  63 62 61 60 59 58 57 56    a8 b8 c8 d8 e8 f8 g8 h8
7| p b    b p p p |7  55 54 53 52 51 50 49 48    a7 b7 c7 d7 e7 f7 g7 h7
6|  p    p      |6  47 46 45 44 43 42 41 40    a6 b6 c6 d6 e6 f6 g6 h6
5|    p          |5  39 38 37 36 35 34 33 32    a5 b5 c5 d5 e5 f5 g5 h5
4|      P        |4  31 30 29 28 27 26 25 24    a4 b4 c4 d4 e4 f4 g4 h4
3| P  P  P N    |3  23 22 21 20 19 18 17 16    a3 b3 c3 d3 e3 f3 g3 h3
2|  B Q    P P P |2  15 14 13 12 11 10 09 08    a2 b2 c2 d2 e2 f2 g2 h2
1| R      K B  R |1  07 06 05 04 03 02 01 00    a1 b1 c1 d1 e1 f1 g1 h1
  ---------------
  a b c d e f g h
--End Board-------------------------------------------------------------
Starting Position: rnq1k2r/pb2bppp/1p2p3/2p5/3P4/P1P1PN2/1BQ2PPP/R3KB1R w KQkq - 0 0
Movelist:
Engine Output: bestmove e2e3
Test engine output with:
position fen rnq1k2r/pb2bppp/1p2p3/2p5/3P4/P1P1PN2/1BQ2PPP/R3KB1R w KQkq - 0 0 moves

Code:

--Start Board-----------------------------------------------------------
bR =  0x8100000000000000 wR =  0x0000000000000081 Castling =    0xF
bB =  0x2000000000000000 wB =  0x0000000000200004 EPSquare =    -1
bN =  0x4000040000000000 wN =  0x0000000000040000 White Mat =    0
bQ =  0x0008000000000000 wQ =  0x0000000000002000 Black Mat =    0
bK =  0x0800000000000000 wK =  0x0000000000000008 50 Moves =    0
bP =  0x0067108800000000 wP =  0x0000001028804700 Side To Move = W
bA =  0xE96F148800000000 wA =  0x0000001028A4678D Half Move =    0
FEN = rnb1k2r/1pp1qppp/3p1n2/p2Pp3/2P1P3/P1B2N2/1PQ2PPP/R3KB1R w KQkq - 0 0
  a b c d e f g h
  ---------------
8| r n b  k    r |8  63 62 61 60 59 58 57 56    a8 b8 c8 d8 e8 f8 g8 h8
7|  p p  q p p p |7  55 54 53 52 51 50 49 48    a7 b7 c7 d7 e7 f7 g7 h7
6|      p  n    |6  47 46 45 44 43 42 41 40    a6 b6 c6 d6 e6 f6 g6 h6
5| p    P p      |5  39 38 37 36 35 34 33 32    a5 b5 c5 d5 e5 f5 g5 h5
4|    P  P      |4  31 30 29 28 27 26 25 24    a4 b4 c4 d4 e4 f4 g4 h4
3| P  B    N    |3  23 22 21 20 19 18 17 16    a3 b3 c3 d3 e3 f3 g3 h3
2|  P Q    P P P |2  15 14 13 12 11 10 09 08    a2 b2 c2 d2 e2 f2 g2 h2
1| R      K B  R |1  07 06 05 04 03 02 01 00    a1 b1 c1 d1 e1 f1 g1 h1
  ---------------
  a b c d e f g h
--End Board-------------------------------------------------------------
Starting Position: rnb1k2r/1pp1qppp/3p1n2/p2Pp3/2P1P3/P1B2N2/1PQ2PPP/R3KB1R w KQkq - 0 0
Movelist:
Engine Output: bestmove e2e3
Test engine output with:
position fen rnb1k2r/1pp1qppp/3p1n2/p2Pp3/2P1P3/P1B2N2/1PQ2PPP/R3KB1R w KQkq - 0 0 moves

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GreKo 9.3.1 (UCI, Linux & source)

(fix) * 'position fen ...' UCI command fixed.

http://greko.110mb.com/greko-9.3.1.zip

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Greko 9.3.1 JA (UCI) (Wb)

Windows/Linux/Android 64/32

https://dl.dropbox.com/u/5047625/greko-931-ja.zip
http://cl.ly/HQNJ/greko-931-ja.zip

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GreKo 9.5 (UCI, Linux & source)

(fix) * Config file parameter names fixed.
(new) * Evaluation weights: config and UCI options.
(chg) * LMR conditions modified.

http://greko.110mb.com/greko-9.5.zip

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Greko 9.5 JA (UCI) (Wb)

Windows/Linux/Android 64/32

https://dl.dropbox.com/u/5047625/greko-95-ja.zip
http://cl.ly/HctF/greko-95-ja.zip

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GreKo v9.6 - Win32 binary and source code
http://greko.110mb.com/greko-9.6.zip

- Return to scheme with one killer move per ply (plays better).
- LMR: history condition restored.
- UCI parameters for evaluation modified.
- Elo/Knps formula modified: play weaker at handicap levels.
- Code cleanup. Return to C++98 Standard.

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Greko 9.6 JA (UCI) (Wb)

Windows/Linux/Android 64/32

https://dl.dropbox.com/u/5047625/greko-96-ja.zip
http://cl.ly/IYiF/greko-96-ja.zip

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Greko 9.7 - Win32 binary and source code
http://greko.110mb.com/greko-9.7.zip

Version 9.7
-----------
31-Aug-2012

(chg) * Endgame heuristics for KBP-K and opposite color bishops.
(chg) * Depth limits for null-move and LMR modified.
(chg) * Hash overwriting rule modified (simpler).

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Greko 9.7 JA (WB/UCI)

Windows/Linux/Android 64/32

https://dl.dropbox.com/u/5047625/greko-97-ja.zip
http://cl.ly/JAtz/greko-97-ja.zip

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GreKo 9.8 (WB/UCI)

Win32/64, Linux32/64, Mac64, Android
this is a Win32 build only, JA cross-platform builds will follow

- randomizing eval UCI/config parameter (just for fun)
- evaluation: PSQ-tables changed, bonus for moving forward
- SEE and MVV/LVA code updated, more clean design
- small tweaks in search
- mate threats extensions
- bitboards code reformatted

http://sourceforge.net/projects/greko/files/greko-9.8.zip/download

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Greko 9.8 JA (UCI) (Wb)

Windows/Linux/Android 64/32

https://dl.dropbox.com/u/5047625/greko-98-ja.zip
http://cl.ly/LtmW/greko-98-ja.zip

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GreKo 10.0 (W32/source)

- Change in function signature in unix.cpp, to fix Unix build.
- Rollback to search/evaluation from v9.7, which is stronger than v9.8.
- Nullmove depth condition changed from (depth > 2) to (depth > 1).
- Source code reformatted for better readability.

http://greko.110mb.com/greko-10.0.zip

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Greko 10 JA

Windows/Linux/Android 64/32

https://dl.dropbox.com/u/5047625/greko-10-ja.zip
http://cl.ly/NILI/greko-10-ja.zip

Android version (direct link): (run as xb engine only)
https://dl.dropbox.com/u/5047625/greko-10-android

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Greko 10.2 - Win32 binary and source code
http://greko.110mb.com/greko-10.2.zip

Version 10.2
------------
30-June-2013

(new) * Draw score parameter added (sort of contempt factor).
(chg) * More configurable parameters for search and evaluation.
(chg) * Lazy eval margin increased from 150 to 400 centipawns.

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Greko 10.2 JA

Windows/Linux/Android 64/32

https://dl.dropboxusercontent.com/u/5047625/greko-10.2-ja.zip
http://cl.ly/Q2ZX/greko-10.2-ja.zip

Android version (direct link): (run as xb engine only)
https://dl.dropboxusercontent.com/u/5047625/GreKo-102-android-ja

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GreKo 10.3
http://sourceforge.net/projects/greko/files/

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Hi,
do we have a chance for a 64bit version - can anybody please compile it ?

regards
Werner

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