Stockfish

on Fri Jan 06, 2017 5:14 am by · on Fri Jan 06, 2017 5:14 am by

[pgn][Event "DESKTOP-DD1B2QU, Slow 45m+30s"]
[Site "DESKTOP-DD1B2QU"]
[Date "2017.01.06"]
[Round "1"]
[White "Stockfish 050117 64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1-0"]
[ECO "E71"]
[Annotator "0.36;0.00"]
[PlyCount "101"]
[TimeControl "2700+30"]

{Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz 2195 MHz W=28.7 plies; 1 964kN/s;
61 371 TBAs B=28.4 plies; 2 130kN/s; 180 911 TBAs} 1. d4 {Both last book move}
Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nge2 O-O 6. h3 {0.36/25 40} a5 {0.00/28
196 (b6)} 7. Bg5 {0.34/28 86 (Ng3)} c5 {-0.02/27 123 (Nbd7)} 8. d5 {0.56/25 38
(Qd2)} h6 {0.19/27 237 (a4)} 9. Be3 {0.80/27 124} e6 {0.24/29 169 (h5)} 10. Ng3
{0.54/28 135 (dxe6)} exd5 {0.20/29 94} 11. cxd5 {0.52/28 125} Re8 {0.22/29 121}
12. Bd3 {0.39/31 196} b6 {0.21/30 120 (h5)} 13. Qd2 {0.50/28 62} h5 {0.22/30 65
} 14. Bg5 {0.64/29 101 (0-0)} Ba6 {0.37/28 134} 15. a4 {0.77/29 53 (0-0)} Bxd3
{0.25/30 167 (Qd7)} 16. Qxd3 {0.73/29 107} Na6 {0.32/29 152 (Qc8)} 17. O-O {
0.88/31 121} Qd7 {0.34/30 224 (Qc8)} 18. f4 {0.69/30 200 (f3)} Nh7 {0.25/26
107 (Nb4)} 19. Bh4 {0.88/32 233} Nb4 {0.20/30 100} 20. Qd2 {0.77/32 195} Bh6 {
0.56/30 264} 21. Rae1 {1.12/29 154 (Nge2)} Rac8 {0.63/28 123 (c4)} 22. Nge2 {
1.25/27 49 (Re3)} f6 {0.77/28 127 (Nf8)} 23. Rd1 {1.31/29 76 (b3)} Re7 {
0.85/28 116 (Rcd8)} 24. Ng3 {1.31/30 67} Rce8 {0.87/29 76} 25. Nb5 {1.34/32 66}
Rf7 {0.91/28 136} 26. b3 {1.40/29 15 (Qc3)} Bg7 {0.95/28 92 (Bf8)} 27. Na3 {
1.88/27 66 (Qe2)} Qd8 {1.28/28 68 (Nf8)} 28. Nc4 {2.29/27 52} Rd7 {1.14/31 95}
29. Qe2 {2.20/26 35} g5 {1.11/31 52 (Qb8)} 30. Nf5 {2.44/28 40} gxh4 {1.41/29
31} 31. Qxh5 {2.32/28 41} Ree7 {1.32/30 121} 32. Qg4 {2.74/28 47 (Qxh4)} Kh8 {
1.56/26 21} 33. Rd2 {2.83/28 36 (Nxe7)} Na6 {2.08/29 133 (Rf7)} 34. Re1 {
3.15/29 52} Rf7 {2.32/29 47 (Bf8)} 35. Re3 {3.43/32 261 (Qxh4)} b5 {2.23/29 38
(Bf8)} 36. axb5 {3.62/30 84} Nc7 {2.31/28 22} 37. b6 {3.64/27 14} Nb5 {2.29/28
15} 38. Qh5 {3.89/29 107} Qe8 {2.95/28 170 (Kg8)} 39. Nxh4 {4.08/29 55 (Ra2)}
Rd8 {2.83/28 37} 40. Nf5 {4.10/31 78} Rfd7 {3.13/29 37} 41. Qg4 {4.19/27 11}
Nd4 {3.46/27 63 (Qg8)} 42. Ncxd6 {4.71/27 42} Qg8 {3.77/25 11 (Qf8)} 43. Nh4 {
5.02/29 40 (Nc4)} Nf8 {3.41/23 9} 44. Ndf5 {5.21/29 37} Rb8 {3.97/27 39 (Nxf5)}
45. Rg3 {5.42/31 44 (Ra2)} Nxf5 {3.97/26 14 (Qh7)} 46. Nxf5 {5.79/31 37} a4 {
6.34/29 98 (Qh7)} 47. bxa4 {7.47/29 50} Rxb6 {6.49/26 10} 48. Rc2 {7.99/28 18}
Qh7 {6.94/28 27 (Nh7)} 49. Rxc5 {9.89/28 53} Rb8 {8.05/31 34} 50. a5 {10.83/28
45} Rf7 {9.41/30 28 (Ra8)} 51. a6 {12.21/28 46 (Nxg7)} 1-0

[/pgn][pgn][Event "DESKTOP-DD1B2QU, Slow 45m+30s"]
[Site "DESKTOP-DD1B2QU"]
[Date "2017.01.06"]
[Round "2"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 050117 64 POPCNT"]
[Result "0-1"]
[ECO "E81"]
[Annotator "0.07;0.15"]
[PlyCount "74"]
[TimeControl "2700+30"]

{Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz 2195 MHz W=28.5 plies; 2 345kN/s;
110 705 TBAs B=28.3 plies; 2 024kN/s; 170 691 TBAs} 1. d4 {Both last book move}
Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nge2 O-O 6. f3 {0.07/28 138} a6 {0.15/29
232 (c5)} 7. Be3 {0.09/27 61} Nbd7 {0.39/29 175 (Nc6)} 8. Qd2 {0.22/27 108} b5
{0.30/27 61 (c6)} 9. cxb5 {0.16/28 122 (Ng3)} axb5 {-0.10/25 43} 10. Nxb5 {
0.07/29 68} c6 {-0.14/26 25} 11. Nbc3 {0.00/28 55} e5 {-0.27/26 55} 12. Bg5 {
0.00/30 238 (Ng3)} d5 {-0.59/25 95 (Qb6)} 13. exd5 {-0.22/28 342} cxd5 {
-0.35/22 14} 14. dxe5 {-0.20/28 190} Nxe5 {-1.04/25 62} 15. Nd4 {-0.42/25 43}
Re8 {-0.79/25 14} 16. O-O-O {-0.34/26 58} Bd7 {-1.13/29 143} 17. Ndb5 {-0.44/
28 264 (Bh6)} Qb8 {-1.55/25 45 (Bf5)} 18. Bf4 {-0.93/27 145 (Nd4)} Nh5 {
-2.12/27 63} 19. Be3 {-1.27/30 194} Nc6 {-2.32/28 75 (Rc8)} 20. Bc5 {-1.46/26
144} Rc8 {-2.22/25 23 (Rd8)} 21. Bd6 {-1.65/27 151} Qb7 {-2.75/30 149 (Qb6)}
22. Kb1 {-1.85/26 61} Be6 {-3.22/28 47} 23. Ba3 {-2.22/27 80 (a3)} Rd8 {
-3.54/29 96 (Be5)} 24. Qc1 {-2.33/27 124} Nf6 {-4.03/29 54 (Be5)} 25. Bd3 {
-2.78/27 64 (Bc5)} d4 {-5.46/29 47} 26. Ne4 {-5.09/28 150} Nxe4 {-5.85/29 37}
27. Bxe4 {-5.40/30 65} Ra6 {-6.13/29 70} 28. Qg5 {-5.55/29 80 (Qc5)} f6 {
-6.68/30 65} 29. Qc1 {-5.72/30 74 (Qc5)} Qxb5 {-7.59/32 74} 30. Bd3 {-5.79/33
62} Qd5 {-7.83/30 19} 31. b3 {-5.89/30 30} Bf5 {-7.99/32 66} 32. Qc5 {-6.29/33
82} Bxd3+ {-7.92/29 25} 33. Rxd3 {-6.38/32 22} Ne5 {-8.29/34 108 (Qe6)} 34.
Rdd1 {-6.03/29 35} Qa8 {-8.46/30 23} 35. Rxd4 {-6.54/30 63} Rxd4 {-8.63/32 80}
36. Qxd4 {-6.70/30 33} Rxa3 {-8.67/28 32} 37. Qd2 {-6.72/30 44} Bh6 {-8.78/34
91 (Bf8)} 0-1

[/pgn]

Lichess Analysis

https://nb.lichess.org/F5D7m86O

https://nb.lichess.org/hchweuRZ

on Tue Jan 17, 2017 2:02 pm by · on Tue Jan 17, 2017 2:02 pm by

Stockfish 20170113 Android Chess Engine

What's new:

Introduce lazy evaluation

After we have taken into account all cheap evaluation
terms, we check whether the score exceeds a given threshold.
If this is the case, we return a scaled down evaluation.

STC:
LLR: 3.35 (-2.94,2.94) [0.00,5.00]
Total: 12575 W: 2316 L: 2122 D: 8137

LTC:
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 67480 W: 9016 L: 8677 D: 49787

Bench: 5367704

Download:
armv7, arm64v8 : https://drive.google.com/open?id=0B1u7rQWQlaSxNDMydmMxZHBZM1E

Sorry, there's no PGO build.

armv7-nopie : https://drive.google.com/open?id=0B1u7rQWQlaSxODBTUloxZXZGRk0

on Tue Jan 17, 2017 4:11 pm by · on Tue Jan 17, 2017 4:11 pm by

http://abrok.eu/stockfish/ NEW ENGINE TO DAY

http://chess.ultimaiq.net/stockfish.html

on Mon Feb 20, 2017 6:26 am by · on Mon Feb 20, 2017 6:26 am by

http://abrok.eu/stockfish/

[Hide]Author: snicolet
Date: Sun Feb 19 14:27:03 2017 -0800
Timestamp: 1487543223

Keep pawns on both flanks

Positions with pawns on only one flank tend to be more drawish. We add
a term to the initiative bonus to help the attacking player keep pawns
on both flanks.

STC: yellowish run stopped after 257137 games
LLR: -0.92 (-2.94,2.94) [0.00,5.00]
Total: 257137 W: 46560 L: 45511 D: 165066

LTC:
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 15602 W: 2125 L: 1956 D: 11521

Bench : 6976310

Closes #1009 [/Hide]

CPU: i5-5200U
Hash: 2048 mb allocated for each engine
GUI: Cutechess 0.9.4
TBs: 6-men syzygy on SSD
TC: 45m+30s

[pgn][Event "?"]
[Site "?"]
[Date "2017.02.20"]
[Round "?"]
[White "stockfish_17021923_x64_modern"]
[Black "komodo-10.3-64bit"]
[Result "1/2-1/2"]
[FEN "rnb1kbnr/pp1ppppp/8/q1p5/4P3/2P5/PP1P1PPP/RNBQKBNR w KQkq - 1 1"]
[PlyCount "80"]
[SetUp "1"]
[Termination "adjudication"]
[TimeControl "2700+30"]

1. Nf3 {+0.22/28 118s} Nc6 {-0.40/30 169s} 2. Bc4 {+0.47/28 69s}
Nf6 {-0.32/27 46s} 3. Qe2 {+0.30/32 146s} d6 {-0.43/28 80s} 4. h3 {+0.19/27 12s}
e5 {-0.33/31 164s} 5. O-O {+0.34/31 194s} Be7 {-0.33/30 92s}
6. a4 {+0.24/31 154s} O-O {-0.16/29 169s} 7. Na3 {+0.20/31 266s}
a6 {-0.14/29 126s} 8. d3 {+0.36/30 67s} Qc7 {-0.19/29 81s} 9. Bd2 {+0.29/30 71s}
Na5 {-0.20/28 88s} 10. Ba2 {+0.38/28 68s} Be6 {-0.18/29 69s}
11. Nc4 {+0.42/30 80s} Nxc4 {-0.20/28 98s} 12. Bxc4 {+0.42/31 80s}
Bxc4 {-0.21/29 202s} 13. dxc4 {+0.47/31 64s} Kh8 {-0.22/29 58s}
14. Nh2 {+0.52/28 69s} Qc6 {-0.12/28 58s} 15. Rfe1 {+0.50/31 68s}
Ng8 {-0.08/29 48s} 16. b4 {+0.31/30 206s} cxb4 {-0.02/32 91s}
17. cxb4 {+0.08/34 134s} Rac8 {-0.11/31 65s} 18. Rec1 {+0.24/28 21s}
Nf6 {-0.02/32 116s} 19. f3 {+0.31/30 86s} Nh5 {-0.18/27 69s}
20. Nf1 {+0.33/29 137s} Qb6+ {-0.14/29 100s} 21. Kh1 {+0.29/31 83s}
Nf4 {-0.02/30 96s} 22. Bxf4 {+0.33/31 77s} exf4 {-0.06/28 29s}
23. Qd2 {+0.27/29 78s} h6 {0.00/29 56s} 24. a5 {+0.09/33 187s} Qc6 {0.00/29 58s}
25. Rab1 {0.00/33 66s} Kg8 {0.00/33 102s} 26. Qd3 {0.00/34 103s}
Bf6 {0.00/31 101s} 27. Nh2 {0.00/36 56s} h5 {0.00/31 66s} 28. Nf1 {+0.05/31 57s}
g6 {0.00/33 177s} 29. Nd2 {+0.14/30 45s} Rc7 {0.00/34 125s}
30. Kh2 {0.00/35 87s} Rd8 {+0.04/33 95s} 31. Nb3 {0.00/38 44s}
Qe8 {+0.03/34 53s} 32. Rc2 {0.00/40 70s} Be5 {+0.03/36 93s}
33. Rcc1 {0.00/40 46s} Rdc8 {+0.03/35 43s} 34. Nd4 {0.00/41 53s}
Kh7 {0.00/32 69s} 35. b5 {0.00/39 64s} Qh8 {0.00/33 109s} 36. b6 {0.00/36 48s}
Rc5 {0.00/34 55s} 37. Nb3 {0.00/36 18s} R5c6 {0.00/34 35s} 38. Rc2 {0.00/38 67s}
Qg7 {0.00/37 82s} 39. Rd1 {0.00/32 43s} Qf6 {0.00/40 84s} 40. Kg1 {0.00/34 46s}
Qg5 {0.00/37 80s, Draw by adjudication} 1/2-1/2[/pgn]

Lichess analysis - https://en.lichess.org/uOzAG9Bf

on Mon Feb 20, 2017 6:40 am by · on Mon Feb 20, 2017 6:40 am by

Stockfish 2017.02.11.ACH for Android

Alexei Chernakoff's successful attempt to prepare engine builds for Android is good news for mobile chess fans, bearing in mind Jim Ablett's fruitful return which quickly turned to a long break and Aprijal Pasaribu's determined but time-limited passion for compiling.

Alexei's first choice of engine is not surprising at all. He began with a current development version of Stockfish.

https://app.box.com/s/uns4onhtvk3wosghc4niljm6p91e9fuj

on Fri Apr 28, 2017 10:42 am by · on Fri Apr 28, 2017 10:42 am by

If someone is interested in...this stockfish plays some variants:

By RomeoA23

Code:: http://www6.zippyshare.com/v/3Zt9m1Jv/file.html

on Sat Apr 29, 2017 8:30 pm by · on Sat Apr 29, 2017 8:30 pm by

https://www.datafilehost.com/d/6308fa40

klasman engıne clone asm fısh

on Mon May 15, 2017 2:50 pm by · on Mon May 15, 2017 2:50 pm by

Stockfish for Android:
Cfish 120517 PGO popcnt optimized by Alexei Chernakoff
https://m.box.com/shared_item/https%3A%2F%2Fapp.box.com%2Fs%2F7w91y6see2r6ga8eb7vor2fett0gdf1u

on Sat May 20, 2017 5:41 am by · on Sat May 20, 2017 5:41 am by

Stockfish BYO 2017a - new version

- Updated to use latest GCC 7.1.0 compiler
- Fixed crashes

zippyshare.com/v/tjubnQkL/file.html

http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=30622

on Wed May 31, 2017 6:03 pm by · on Wed May 31, 2017 6:03 pm by

Stockfish for Android:
Stockfish 240517 popcnt optimized by Alexei Chernakoff
https://app.box.com/s/9avlgfm1n8pilj1ivju4k713jj09zp3e

on Mon Aug 21, 2017 3:39 am by · on Mon Aug 21, 2017 3:39 am by

Chess for Android: Cfish 2017.08.19.ACH

Stockfish - Page 38 Stockf11

There are two versions:
- Default - https://app.box.com/s/8bwm2sgcghw1w231vvc5dgvd6pyxu3ny
- Black Magic - https://app.box.com/s/pqb2o55u625gl4vszcdq2u0xt98emg39

on Fri Nov 10, 2017 9:25 pm by · on Fri Nov 10, 2017 9:25 pm by

Chess for Android: Cfish 2017.11.05.ACH
author: Alexei Chernakoff

Stockfish - Page 38 Stockf11

arm7 arm8: https://app.box.com/s/mps9o582ypjhb195pmx2i4rgd6s3t1qt

Handle BxN trade as good capture when history score is good

on Thu Dec 07, 2017 10:44 pm by · on Thu Dec 07, 2017 10:44 pm by

cfish-041217 arm7 arm8 by Alexei Chernakoff
https://app.box.com/s/s2sqq8yd86wng355v15f6581yyj9ci3o

Contempt = 20 hard coded

on Fri Dec 15, 2017 4:20 pm by · on Fri Dec 15, 2017 4:20 pm by

Cfish-131217 with Cerebellum book support
https://app.box.com/s/5wzqqoidxsoqgd4ipq06hvalv65jsixn

on Sat Mar 10, 2018 11:17 pm by · on Sat Mar 10, 2018 11:17 pm by

Cfish-100318 (arm7,arm64v8): cerebellum book support
https://app.box.com/s/9ocdcshy1e4we4bd2jdqf0hgb3q4xas1
Implement an old Russian proverb

"Loose pieces drop, in blitz keep everything protected"

Adding a small S(2,2) bonus for knights, bishops, rooks, and
queens that are "connected" to each other (in the sense that
they are under attack by our own pieces) apparently is a good
thing. It probably helps the pieces work together a bit better.

STC
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 12317 W: 2655 L: 2467 D: 7195
http://tests.stockfishchess.org/tests/view/5aa2d86b0ebc590297cb6474

LTC
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 35725 W: 5516 L: 5263 D: 24946
http://tests.stockfishchess.org/tests/view/5aa2fc6f0ebc590297cb64a8

on Fri Mar 16, 2018 2:50 pm by · on Fri Mar 16, 2018 2:50 pm by

stockfish-150318(arm7, arm64v8)
Author: Stéphane Nicolet
Date: Thu Mar 15 10:44:26 2018 +0100
https://app.box.com/s/gijy9sxyj22gotnnrkst6w8cbfbx0t7n

- Renaming some variables in code
- Make using quiescence search implicit
- Check the clock every 1024 nodes
- Use intrinsics only for LSB/MSB
- Simplify condition for ProbCut move count pruning
- Tweak probcut margin with 'improving' flag
- Adjust initiative in pure pawn endgames
- MovePicker: combine countermove with killers
- Connectivity Score S(3,1) is stronger than S(2,2)

on Mon Mar 19, 2018 11:18 pm by · on Mon Mar 19, 2018 11:18 pm by

http://chess.ultimaiq.net/stockfish.html

new 19-3-2018

on Mon Mar 26, 2018 11:18 pm by · on Mon Mar 26, 2018 11:18 pm by

March 26, 2018
http://chess.ultimaiq.net/stockfish.html

on Thu Mar 29, 2018 9:40 pm by · on Thu Mar 29, 2018 9:40 pm by

armFish 2018-03-18 pgo
https://drive.google.com/file/d/19GO_DLLn1r7suScj8KsA8tZd5wPde2xU/view

on Fri Mar 30, 2018 8:32 pm by · on Fri Mar 30, 2018 8:32 pm by

Cfish 280318
http://chess.massimilianogoi.com/downloads/cfish280318/download.php

Author: Jerry Donald Watson
Date: Wed Mar 28 00:31:47 2018 +0200
Timestamp: 1522189907

Change reduction/improving interaction

STC:
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 35908 W: 7382 L: 7087 D: 21439
http://tests.stockfishchess.org/tests/view/5aba723a0ebc5902a4743e8f

LTC:
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 23087 W: 3584 L: 3378 D: 16125
http://tests.stockfishchess.org/tests/view/5aba89070ebc5902a4743ea9

on Mon Apr 02, 2018 9:50 pm by · on Mon Apr 02, 2018 9:50 pm by

Cfish-020418(arm7,arm64v8).
syzygy1 Updated to "Simplify KBPKB endgame with opposite bishops".
https://app.box.com/s/z6kxs6y97hxy1hqhxcaxk0aheze9x01u

on Mon Apr 02, 2018 9:58 pm by · on Mon Apr 02, 2018 9:58 pm by

Cfish-010418 windows
http://chess.massimilianogoi.com/downloads/cfish1418/download.php

on Sun Apr 08, 2018 3:03 pm by · on Sun Apr 08, 2018 3:03 pm by

Cfish-070418(arm7,arm64v8).
syzygy1 Updated to "Introduce Queen Overload"
https://app.box.com/s/fmxguag701oiwi5ezrxgfez5wixjqdn9
windows http://chess.massimilianogoi.com/downloads/cfish8418/

mark tenzer wrote:This patch applies a S(10, 5) bonus for every square that is:

- Occupied by an enemy piece which is not a pawn
- Attacked exactly once by our pieces
- Defended exactly once by enemy pieces

on Fri Apr 20, 2018 1:51 pm by · on Fri Apr 20, 2018 1:51 pm by

stockfish-180418(arm7,arm64v8).
https://app.box.com/s/migb47rvjr0wke05h6t0nwzjc8koz184

on Mon Apr 23, 2018 2:17 pm by · on Mon Apr 23, 2018 2:17 pm by

Android Cfish-210418 (arm7 and two versions arm64v8.The Cfish-180418CL is built with the new Clang-5.0 and a little faster. But may not work on all devices. Use the normal version then).

https://app.box.com/s/eyg0gawamditdnlbd802regafu6krza4

by