Dev Builds » 20220503-1554

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 06:55:59 583808 4022 1017 1045 1960 -2.42 ± 5.08 2 456 1124 426 3 -5.01 ± 10.09
ncm-dbt-02 06:55:19 586616 3984 1000 989 1995 +0.96 ± 5.1 3 425 1127 432 5 +1.57 ± 10.06
ncm-dbt-03 06:54:59 585699 4000 1041 1042 1917 -0.09 ± 5.21 1 459 1086 448 6 -1.04 ± 10.3
ncm-dbt-04 06:56:36 568487 3998 1055 989 1954 +5.74 ± 5.03 3 395 1134 467 0 +12.0 ± 10.02
ncm-dbt-05 06:55:21 581595 3996 1054 990 1952 +5.57 ± 5.21 6 413 1095 479 5 +11.31 ± 10.24
20000 5167 5055 9778 +1.95 ± 2.29 15 2148 5566 2252 19 +3.75 ± 4.53

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
432766 ncm-dbt-01 582611 22 3 6 13 -47.67 ± 65.35 0 4 6 1 0 -97.22 ± 146.82 ↓
432765 ncm-dbt-02 586604 484 112 123 249 -7.9 ± 14.26 0 56 142 43 1 -17.24 ± 28.19 ↓
432764 ncm-dbt-05 580987 496 121 112 263 +6.3 ± 14.72 0 52 136 59 1 +11.21 ± 29.12 ↓
432763 ncm-dbt-04 568713 498 146 131 221 +10.47 ± 15.26 1 52 127 69 0 +22.36 ± 30.28 ↓
432762 ncm-dbt-03 588132 500 132 139 229 -4.86 ± 14.86 0 63 131 56 0 -9.73 ± 29.79 ↓
432761 ncm-dbt-01 584453 500 133 126 241 +4.87 ± 13.68 1 44 152 53 0 +11.12 ± 27.01 ↓
432760 ncm-dbt-02 584159 500 131 125 244 +4.17 ± 15.41 1 57 128 63 1 +8.34 ± 30.16 ↓
432759 ncm-dbt-05 584159 500 138 126 236 +8.34 ± 14.0 1 44 147 58 0 +18.08 ± 27.69 ↓
432758 ncm-dbt-04 567324 500 127 122 251 +3.47 ± 13.82 0 49 147 54 0 +6.95 ± 27.7 ↓
432757 ncm-dbt-03 583698 500 126 132 242 -4.17 ± 15.17 1 62 129 58 0 -6.95 ± 30.04 ↓
432756 ncm-dbt-01 584453 500 123 128 249 -3.47 ± 15.47 0 67 121 62 0 -6.95 ± 31.02 ↓
432755 ncm-dbt-02 582778 500 119 119 262 -0.0 ± 13.07 0 46 158 46 0 -0.0 ± 26.18 ↓
432754 ncm-dbt-05 583028 500 137 134 229 +2.08 ± 13.83 0 50 147 53 0 +4.17 ± 27.7 ↓
432753 ncm-dbt-04 568673 500 150 121 229 +20.17 ± 14.19 0 41 139 70 0 +40.48 ± 28.71 ↓
432752 ncm-dbt-03 584579 500 143 144 213 -0.7 ± 14.87 0 58 137 53 2 -4.17 ± 29.02 ↓
432751 ncm-dbt-01 583656 500 121 140 239 -13.21 ± 13.48 0 59 151 40 0 -26.46 ± 27.12 ↓
432750 ncm-dbt-05 579331 500 136 123 241 +9.04 ± 14.45 1 47 140 62 0 +19.48 ± 28.62 ↓
432749 ncm-dbt-04 566454 500 123 122 255 +0.69 ± 14.61 0 57 135 58 0 +1.39 ± 29.28 ↓
432748 ncm-dbt-02 588047 500 118 118 264 -0.0 ± 14.68 0 58 134 58 0 -0.0 ± 29.41 ↓
432747 ncm-dbt-03 585464 500 123 132 245 -6.25 ± 15.46 0 69 121 60 0 -12.51 ± 31.02 ↓
432746 ncm-dbt-01 583405 500 124 143 233 -13.21 ± 15.05 0 70 130 49 1 -27.85 ± 29.9 ↓
432745 ncm-dbt-02 587707 500 122 124 254 -1.39 ± 15.05 1 59 131 59 0 -1.39 ± 29.79 ↓
432744 ncm-dbt-04 569470 500 134 119 247 +10.43 ± 13.51 0 42 151 57 0 +20.87 ± 27.13 ↓
432743 ncm-dbt-05 578054 500 126 122 252 +2.78 ± 14.67 1 53 137 59 0 +6.95 ± 29.02 ↓
432742 ncm-dbt-03 587962 500 138 126 236 +8.34 ± 14.52 0 50 139 60 1 +15.3 ± 28.76 ↓
432741 ncm-dbt-01 583321 500 136 125 239 +7.64 ± 13.94 0 47 145 58 0 +15.3 ± 27.96 ↓
432740 ncm-dbt-02 586646 500 138 130 232 +5.56 ± 13.61 0 46 150 54 0 +11.12 ± 27.29 ↓
432739 ncm-dbt-05 581569 500 136 130 234 +4.17 ± 15.05 1 54 134 60 1 +8.34 ± 29.41 ↓
432738 ncm-dbt-04 571110 500 138 140 222 -1.39 ± 14.16 1 52 145 52 0 -1.39 ± 27.97 ↓
432737 ncm-dbt-03 586012 500 134 117 249 +11.82 ± 14.56 0 48 138 63 1 +22.27 ± 28.88 ↓
432736 ncm-dbt-01 583908 500 144 131 225 +9.03 ± 14.96 0 52 135 61 2 +15.3 ± 29.27 ↓
432735 ncm-dbt-05 582611 500 133 127 240 +4.17 ± 15.53 1 58 126 64 1 +8.34 ± 30.41 ↓
432734 ncm-dbt-02 589539 500 125 122 253 +2.08 ± 14.86 0 56 137 55 2 +1.39 ± 29.02 ↓
432733 ncm-dbt-04 567839 500 120 109 271 +7.64 ± 13.8 0 46 147 57 0 +15.3 ± 27.69 ↓
432732 ncm-dbt-03 584706 500 130 122 248 +5.56 ± 13.75 0 47 148 55 0 +11.12 ± 27.56 ↓
432731 ncm-dbt-01 581777 500 114 118 268 -2.78 ± 14.55 0 59 136 55 0 -5.56 ± 29.15 ↓
432730 ncm-dbt-02 587452 500 135 128 237 +4.86 ± 14.22 1 47 147 54 1 +9.73 ± 27.7 ↓
432729 ncm-dbt-05 583028 500 127 116 257 +7.64 ± 15.58 1 55 128 64 2 +13.9 ± 30.16 ↓
432728 ncm-dbt-01 586689 500 119 128 253 -6.25 ± 13.95 1 54 148 47 0 -11.12 ± 27.56 ↓
432727 ncm-dbt-04 568315 500 117 125 258 -5.56 ± 14.28 1 56 143 50 0 -9.73 ± 28.23 ↓
432726 ncm-dbt-03 585042 500 115 130 255 -10.43 ± 14.44 0 62 143 43 2 -23.66 ± 28.22 ↓

Commit

Commit ID 285a79eaa0b89b342b5e4f217682e083a6fd33f5
Author Stefan Geschwentner
Date 2022-05-03 15:54:23 UTC
Simplify time management. Replace the best move instability adjustment factor by a simpler version which doesn't have a dependency on the iteration depth. STC: LLR: 2.94 (-2.94,2.94) <-2.25,0.25> Total: 30800 W: 8232 L: 8073 D: 14495 Ptnml(0-2): 101, 3309, 8444, 3422, 124 https://tests.stockfishchess.org/tests/view/6266c77bc5b924ba22908d30 LTC: LLR: 2.95 (-2.94,2.94) <-2.25,0.25> Total: 61664 W: 16375 L: 16272 D: 29017 Ptnml(0-2): 40, 5869, 18897, 6000, 26 https://tests.stockfishchess.org/tests/view/6266fc39b3d1812808915f23 closes https://github.com/official-stockfish/Stockfish/pull/3999 Bench: 7729968
Copyright 2011–2025 Next Chess Move LLC
Feedback & Support Terms of Service Privacy Policy Desktop Version