PlentyChess 6.0.5 JA - new version strong chess engine

 

PlentyChess - A UCI chess engine with a neural network based evaluation.

Rating Chess Engines Diary CEDR=3719

Building on Windows

For the build to work on Windows, you need to install MinGW as well as the required packages (make, g++, pthread, etc.).

Then you can use the makefile as you would on a unix system.

v.6.0.0:

This release includes the following improvements and changes:

A much stronger neural network, especially in (D)FRC

Many small improvements to the search function

Various bugfixes, including ones that fix crashes during long analysis

TB scores are now shown as the distance to 1000

Performance vs. PlentyChess 5.0.0

STC

Elo   | 22.99 +- 2.52 (95%)

Conf  | 8.0+0.08s Threads=1 Hash=16MB

Games | N: 20004 W: 5677 L: 4355 D: 9972

Penta | [60, 1841, 4944, 3031, 126]

https://furybench.com/test/971/

LTC

Elo   | 26.21 +- 2.34 (95%)

Conf  | 40.0+0.40s Threads=1 Hash=64MB

Games | N: 20002 W: 5760 L: 4254 D: 9988

Penta | [13, 1635, 5209, 3121, 23]

https://furybench.com/test/972/

DFRC

Elo   | 64.83 +- 4.48 (95%)

Conf  | 8.0+0.08s Threads=1 Hash=16MB

Games | N: 10008 W: 3454 L: 1608 D: 4946

Penta | [83, 685, 2031, 1713, 492]

https://furybench.com/test/989/

Binary Guide

generic: Slowest

ssse3: Slightly faster, requires a CPU with SSSE3 support

fma: Faster, requires a CPU with FMA support

avx2: Faster, requires a CPU with AVX2 support

bmi2: Faster, requires a CPU with AVX2 and BMI2 support. Not recommended for Zen1 and Zen2 CPUs

avx512: Faster, requires a CPU with AVX512 support

avx512vnni: Fastest, requires a CPU with AVX512 and VNNI support

neon: For ARM CPUs that support NEON instructions

If you're unsure about what binary to use, start with avx512vnni and find the first one that does not crash on your machine. There is a chance that the AVX2 binary is faster on your system, despite it supporting AVX512.

Windows/Linux & Android profiled builds - Jim Ablett compiles:

PlentyChess 6.0.5 JA download

PlentyChess 5.0.0 vs other engines:

Alexandria 8.0.0 JA	48/96	+0	96 Games
Caissa 1.21.7 JA	42/80	+4	80 Games
Integral 7.0.0 JA	35/70	+0	70 Games
Motor 0.8.0 JA	33.5/56	+11	56 Games
Stockfish 17.1	22/46	-2	46 Games
Stockfish 17	21/44	-2	44 Games
Booot 7.4	25/42	+8	42 Games
Revenge 4.0	25/40	+10	40 Games
Berserk 20250307b JA	21.5/40	+3	40 Games
Horsie 1.0.6 JA	21.5/40	+3	40 Games
Berserk 20250307b	20/40	+0	40 Games
Obsidian 15.04 SE	19.5/40	-1	40 Games
Quanticade Fenrir 1.0 JA	14.5/26	+3	26 Games
Viridithas 17.0.0	12/24	+0	24 Games
Caissa 1.22	11.5/24	-1	24 Games
Starzix 6.1	12.5/22	+3	22 Games
Spaghet BologNNese 1.1.3 JA	20/20	+20	20 Games
Horsie 1.1.0	10.5/20	+1	20 Games
Obsidian 15.22 JA	8.5/20	-3	20 Games
Obsidian 16.0	8/17	-1	17 Games
Seer 2.8.0 JA	8.5/16	+1	16 Games

PlentyChess 4.0.1 - interesting game:

[Event "2024.11.24.TOPEnginesTournament"] [Site "Chess Engines Diary"] [Date "2024.11.30"] [Round "1.73"] [White "PlentyChess 3.0.1"] [Black "Uralochka 3.42 dev7"] [Result "1-0"] [ECO "C02"] [PlyCount "207"] [EventDate "2024.??.??"] {[%evp 0,64,19,31,41,46,51,33,15,4,11,11,-9,-12,-9,-2,12,-19,-20,-20,-12,-12,-12,-14,-7,-11,-13,-6,24,-9,52,19,12,17,28,30,28,34,34,25,59,59,48,17,21,28,32,37,50,14,29,31,65,68,62,40,67,43,106,60,63,11,42,15,83,28,28]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Bd7 5. Nf3 Nc6 6. Be2 Nge7 7. O-O Ng6 8. Re1 Be7 9. Na3 cxd4 10. cxd4 O-O 11. Nc2 f6 12. exf6 Bxf6 13. Bd2 a5 14. g3 Be8 15. Bc3 Nge7 16. Ne3 Bg6 17. Ng4 Bf5 18. Nxf6+ Rxf6 19. a3 Bg4 20. Ng5 Bf5 21. Bf1 h6 22. Nh3 Nc8 23. Nf4 Nd6 24. Rc1 Qd7 25. Nd3 Bxd3 26. Bxd3 Qf7 27. Rc2 Rf8 28. f4 h5 29. Rf2 b5 30. Bd2 Nc4 31. Bc1 Nd6 32. Bb1 Nf5 33. b3 b4 34. Bb2 Nce7 35. Bc1 Nc6 36. a4 Rc8 37. Rc2 Nd6 38. Bd2 Ne4 39. Rc1 Qd7 40. Bxe4 dxe4 41. Rxe4 h4 42. Qe2 hxg3 43. hxg3 Qd5 44. Rc4 Kf7 45. Qg2 Qd7 46. Qf3 Rh8 47. Be3 Ne7 48. Kf1 Rc8 49. Qh5+ Rg6 50. Bf2 Rxc4 51. bxc4 b3 52. Qb5 Qxb5 53. cxb5 Nd5 54. Re2 Nb6 55. Kg2 Nxa4 56. Re3 Nb6 57. Rxb3 a4 58. Ra3 Nd5 59. Rxa4 Nxf4+ 60. Kf3 Nd5 61. Ra7+ Kg8 62. Be1 Rf6+ 63. Ke4 Rf1 64. Ba5 Rb1 65. Rb7 Ra1 66. Bd2 Ra2 67. Bf4 Re2+ 68. Kd3 Rb2 69. Kc4 g5 70. Be5 Rc2+ 71. Kb3 Rc1 72. Bd6 Rd1 73. Bc5 Rb1+ 74. Kc2 Rg1 75. b6 Rg2+ 76. Kb3 Rxg3+ 77. Ka4 Rg1 78. Kb5 g4 79. Ra7 g3 80. Ra3 g2 81. Rg3+ Kf7 82. b7 Ne7 83. b8=Q Rb1+ 84. Bb4 Rxb4+ 85. Kxb4 Nc6+ 86. Kc5 Nxb8 87. Kd6 Kf6 88. Rxg2 Na6 89. Rf2+ Kg5 90. Kxe6 Kh4 91. Rf8 Kg3 92. Kd6 Kg2 93. d5 Kh2 94. Rf4 Kg1 95. Ra4 Nb8 96. Kc7 Nd7 97. Kxd7 Kf1 98. Ra2 Ke1 99. Kc6 Kf1 100. d6 Ke1 101. d7 Kf1 102. d8=Q Ke1 103. Rc2 Kf1 104. Qd1# 1-0