Dev Builds » 20230104-0837

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo
ncm-dbt-01 06:59:11 582658 4000 1160 873 1967 +24.97 ± 5.13 3 310 1091 589 7 +49.49 ± 10.24
ncm-dbt-02 07:01:43 586083 4002 1180 884 1938 +25.74 ± 5.24 4 327 1042 625 3 +51.95 ± 10.53
ncm-dbt-03 07:01:30 586136 3986 1160 893 1933 +23.31 ± 5.16 7 312 1084 587 3 +47.54 ± 10.28
ncm-dbt-04 06:58:37 569062 4000 1163 864 1973 +26.02 ± 5.15 4 308 1079 603 6 +51.98 ± 10.31
ncm-dbt-05 07:01:15 582279 4012 1174 843 1995 +28.73 ± 5.11 2 299 1075 626 4 +57.5 ± 10.33
20000 5837 4357 9806 +25.76 ± 2.31 20 1556 5371 3030 23 +51.69 ± 4.62

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
412525 ncm-dbt-02 585928 2 1 1 0 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47 ↓
412524 ncm-dbt-05 584369 12 4 4 4 -0.0 ± 81.87 0 1 4 1 0 -0.0 ± 173.65 ↓
412523 ncm-dbt-03 586774 486 137 97 252 +28.66 ± 14.35 2 29 139 73 0 +60.66 ± 28.48 ↓
412522 ncm-dbt-01 582861 500 154 103 243 +35.56 ± 13.81 0 28 145 75 2 +68.99 ± 27.73 ↓
412521 ncm-dbt-04 568713 500 148 117 235 +21.57 ± 13.2 0 32 156 61 1 +41.89 ± 26.33 ↓
412520 ncm-dbt-02 586520 500 147 98 255 +34.16 ± 14.65 0 37 127 86 0 +68.99 ± 30.25 ↓
412519 ncm-dbt-05 582068 500 134 101 265 +22.96 ± 14.53 0 42 133 75 0 +46.13 ± 29.5 ↓
412518 ncm-dbt-03 585590 500 144 127 229 +11.82 ± 15.06 3 43 139 64 1 +26.46 ± 28.74 ↓
412517 ncm-dbt-01 583028 500 141 106 253 +24.36 ± 15.01 0 45 125 80 0 +48.96 ± 30.53 ↓
412516 ncm-dbt-04 568434 500 144 109 247 +24.36 ± 15.26 1 44 124 81 0 +50.38 ± 30.66 ↓
412515 ncm-dbt-02 587028 500 145 113 242 +22.26 ± 14.86 0 44 131 74 1 +43.3 ± 29.76 ↓
412514 ncm-dbt-05 580365 500 153 91 256 +43.3 ± 15.08 0 35 119 95 1 +86.52 ± 31.31 ↓
412513 ncm-dbt-03 585928 500 145 113 242 +22.27 ± 13.68 1 33 149 67 0 +46.13 ± 27.31 ↓
412512 ncm-dbt-01 583489 500 153 120 227 +22.96 ± 15.65 0 48 124 75 3 +41.89 ± 30.66 ↓
412511 ncm-dbt-04 569589 500 140 111 249 +20.17 ± 14.32 0 41 140 68 1 +39.08 ± 28.58 ↓
412510 ncm-dbt-02 586350 500 151 112 237 +27.16 ± 14.18 1 34 140 75 0 +56.07 ± 28.52 ↓
412509 ncm-dbt-05 580738 500 150 91 259 +41.19 ± 14.57 0 31 131 86 2 +80.63 ± 29.67 ↓
412508 ncm-dbt-01 583656 500 141 111 248 +20.87 ± 14.76 2 39 136 73 0 +44.72 ± 29.1 ↓
412507 ncm-dbt-03 588430 500 146 123 231 +15.99 ± 15.02 1 46 133 69 1 +32.05 ± 29.52 ↓
412506 ncm-dbt-04 569509 500 143 94 263 +34.16 ± 13.99 1 29 140 80 0 +70.44 ± 28.44 ↓
412505 ncm-dbt-02 587494 500 143 111 246 +22.27 ± 14.08 1 36 143 70 0 +46.13 ± 28.15 ↓
412504 ncm-dbt-05 582527 500 154 103 243 +35.56 ± 15.12 2 34 125 89 0 +74.79 ± 30.51 ↓
412503 ncm-dbt-01 579992 500 142 98 260 +30.65 ± 13.47 0 30 146 74 0 +61.79 ± 27.64 ↓
412502 ncm-dbt-04 570108 500 135 110 255 +17.39 ± 14.75 0 47 131 72 0 +34.86 ± 29.77 ↓
412501 ncm-dbt-03 585464 500 141 119 240 +15.3 ± 14.58 0 47 134 69 0 +30.65 ± 29.39 ↓
412500 ncm-dbt-02 581319 500 153 121 226 +22.27 ± 14.35 0 41 136 73 0 +44.72 ± 29.1 ↓
412499 ncm-dbt-05 580862 500 143 109 248 +23.66 ± 15.08 0 45 127 77 1 +46.13 ± 30.28 ↓
412498 ncm-dbt-04 566691 500 155 104 241 +35.56 ± 14.74 1 31 137 78 3 +68.99 ± 28.88 ↓
412497 ncm-dbt-01 585674 500 148 107 245 +28.55 ± 13.6 0 32 145 73 0 +57.5 ± 27.81 ↓
412496 ncm-dbt-03 587113 500 156 113 231 +29.95 ± 14.63 0 39 129 82 0 +60.36 ± 30.0 ↓
412495 ncm-dbt-02 585674 500 148 116 236 +22.27 ± 15.23 1 45 125 79 0 +46.13 ± 30.53 ↓
412494 ncm-dbt-05 582485 500 153 123 224 +20.87 ± 13.84 0 38 144 68 0 +41.89 ± 28.03 ↓
412493 ncm-dbt-04 569390 500 145 114 241 +21.57 ± 15.43 0 49 122 78 1 +41.89 ± 30.91 ↓
412492 ncm-dbt-01 582987 500 134 116 250 +12.51 ± 14.87 0 50 133 66 1 +23.66 ± 29.53 ↓
412491 ncm-dbt-03 584076 500 147 110 243 +25.76 ± 14.47 0 40 133 77 0 +51.8 ± 29.48 ↓
412490 ncm-dbt-02 586901 500 149 102 249 +32.75 ± 15.81 0 46 112 91 1 +64.66 ± 32.19 ↓
412489 ncm-dbt-05 582987 500 143 110 247 +22.96 ± 13.87 0 37 143 70 0 +46.13 ± 28.15 ↓
412488 ncm-dbt-04 570068 500 153 105 242 +33.46 ± 14.74 1 35 129 85 0 +68.99 ± 29.98 ↓
412487 ncm-dbt-01 579578 500 147 112 241 +24.36 ± 14.63 1 38 137 73 1 +48.96 ± 28.96 ↓
412486 ncm-dbt-03 585717 500 144 91 265 +36.97 ± 14.7 0 35 128 86 1 +73.34 ± 30.1 ↓
412485 ncm-dbt-05 584117 500 140 111 249 +20.17 ± 13.51 0 36 149 65 0 +40.48 ± 27.34 ↓
412484 ncm-dbt-02 587537 500 143 110 247 +22.96 ± 15.28 1 44 127 77 1 +46.13 ± 30.28 ↓

Commit

Commit ID 9fe9ff00823a0d1e989fcfc45410396e94345987
Author mstembera
Date 2023-01-04 08:37:02 UTC
Fix stack initialization This fixes a bug where on line 278 the Stack::staticEvals are initialized to 0. However VALUE_NONE is defined to be 32002 so this is a bug in master. It is probably due to the calculation of improvement, where staticEval prior to rootPos can be accessed. https://tests.stockfishchess.org/tests/view/63ab91cf39af998100ce1666 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 53736 W: 14285 L: 13955 D: 25496 Ptnml(0-2): 121, 5921, 14500, 6159, 167 https://tests.stockfishchess.org/tests/view/63b2af5ee28ed36c814bed52 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 33776 W: 9130 L: 8934 D: 15712 Ptnml(0-2): 14, 3240, 10185, 3434, 15 closes https://github.com/official-stockfish/Stockfish/pull/4320 Bench: 4068510
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