Dev Builds » 20230401-1353

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. 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 15:00:40 1199129 5016 2074 464 2478 +115.6 ± 4.31 0 72 800 1590 46 +253.93 ± 12.04
ncm-dbt-02 14:54:47 1235638 4966 2053 458 2455 +115.68 ± 4.35 1 73 782 1584 43 +254.99 ± 12.18
ncm-dbt-03 14:59:07 1232896 5004 2039 455 2510 +113.89 ± 4.44 0 97 767 1595 43 +249.59 ± 12.3
ncm-dbt-04 15:00:34 1226372 5014 2119 452 2443 +120.07 ± 4.4 0 74 753 1619 61 +263.77 ± 12.42
20000 8285 1829 9886 +116.31 ± 2.19 1 316 3102 6388 193 +255.53 ± 6.11

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
182300 ncm-dbt-03 1219311 4 2 0 2 +190.27 ± 27.79 0 0 0 2 0 +1199.83 ± 312.71
182299 ncm-dbt-04 1240483 14 6 2 6 +102.04 ± 70.73 0 0 3 4 0 +225.59 ± 263.0
182298 ncm-dbt-01 1175715 16 6 3 7 +65.91 ± 89.0 0 1 3 4 0 +136.97 ± 241.58
182297 ncm-dbt-02 1231389 466 188 47 231 +108.52 ± 15.07 0 11 75 142 5 +232.1 ± 39.65
182296 ncm-dbt-03 1247007 500 200 53 247 +105.25 ± 14.04 0 12 81 155 2 +230.16 ± 38.13
182295 ncm-dbt-01 1196896 500 207 47 246 +115.22 ± 13.03 0 4 86 156 4 +254.16 ± 36.71
182294 ncm-dbt-04 1214989 500 209 42 249 +120.67 ± 13.5 0 5 79 160 6 +265.78 ± 38.54
182293 ncm-dbt-02 1242498 500 211 47 242 +118.33 ± 12.63 0 4 80 164 2 +268.17 ± 38.21
182292 ncm-dbt-03 1225067 500 211 36 253 +126.97 ± 14.28 0 9 64 170 7 +282.94 ± 42.98
182291 ncm-dbt-01 1214992 500 208 43 249 +119.11 ± 12.99 0 6 75 167 2 +270.57 ± 39.67
182290 ncm-dbt-04 1232540 500 210 45 245 +119.11 ± 13.69 0 7 76 162 5 +263.42 ± 39.41
182289 ncm-dbt-02 1249735 500 212 43 245 +122.24 ± 13.12 0 6 72 169 3 +277.93 ± 40.53
182288 ncm-dbt-03 1228912 500 201 49 250 +109.07 ± 13.4 0 8 84 156 2 +240.82 ± 37.4
182287 ncm-dbt-01 1219865 500 209 55 236 +110.6 ± 15.29 0 13 79 149 9 +230.16 ± 38.58
182286 ncm-dbt-04 1193776 500 216 36 248 +130.94 ± 12.76 0 5 63 179 3 +306.84 ± 43.45
182285 ncm-dbt-02 1232413 500 201 38 261 +117.55 ± 13.53 0 6 80 159 5 +258.75 ± 38.32
182284 ncm-dbt-01 1228725 500 203 54 243 +106.77 ± 13.56 0 8 88 151 3 +232.26 ± 36.48
182283 ncm-dbt-03 1238093 500 194 49 257 +103.73 ± 15.67 0 18 76 149 7 +215.85 ± 39.06
182282 ncm-dbt-04 1230292 500 213 49 238 +118.33 ± 14.52 0 9 76 157 8 +254.16 ± 39.42
182281 ncm-dbt-02 1226993 500 208 46 246 +116.78 ± 14.37 1 10 68 168 3 +263.42 ± 41.6
182280 ncm-dbt-01 1195772 500 208 46 246 +116.77 ± 12.83 0 4 83 160 3 +261.07 ± 37.44
182279 ncm-dbt-03 1238445 500 207 52 241 +111.37 ± 14.84 0 15 69 162 4 +243.0 ± 41.03
182278 ncm-dbt-04 1250569 500 210 43 247 +120.67 ± 14.35 0 8 75 159 8 +261.07 ± 39.69
182277 ncm-dbt-02 1209715 500 207 49 244 +113.68 ± 14.22 0 9 80 155 6 +245.2 ± 38.39
182276 ncm-dbt-01 1220618 500 200 47 253 +109.83 ± 13.4 0 9 80 160 1 +245.2 ± 38.39
182275 ncm-dbt-03 1266919 500 206 36 258 +123.02 ± 13.11 0 4 77 164 5 +275.45 ± 39.01
182274 ncm-dbt-04 1236029 500 214 49 237 +119.11 ± 13.69 0 7 76 162 5 +263.42 ± 39.41
182267 ncm-dbt-02 1225181 500 202 47 251 +111.37 ± 13.73 0 6 89 149 6 +238.66 ± 36.16
182266 ncm-dbt-01 1171970 500 208 46 246 +116.77 ± 14.21 0 10 73 162 5 +256.44 ± 40.21
182265 ncm-dbt-03 1220708 500 210 41 249 +122.24 ± 12.94 0 5 74 168 3 +277.93 ± 39.92
182264 ncm-dbt-04 1213898 500 211 50 239 +116.0 ± 15.16 0 13 71 158 8 +247.41 ± 40.63
182257 ncm-dbt-02 1250071 500 200 46 254 +110.6 ± 13.56 0 8 83 156 3 +243.0 ± 37.64
182256 ncm-dbt-04 1218641 500 204 50 246 +110.6 ± 13.56 0 5 92 147 6 +236.51 ± 35.43
182255 ncm-dbt-03 1210837 500 200 59 241 +100.7 ± 13.85 0 9 95 142 4 +213.85 ± 35.03
182254 ncm-dbt-01 1190372 500 213 47 240 +119.89 ± 14.02 0 6 80 156 8 +258.75 ± 38.32
182247 ncm-dbt-03 1232292 500 202 38 260 +118.33 ± 13.52 0 8 73 166 3 +265.78 ± 40.25
182246 ncm-dbt-02 1246321 500 215 44 241 +123.81 ± 14.15 0 8 70 165 7 +273.0 ± 41.13
182244 ncm-dbt-01 1162351 500 205 35 260 +123.02 ± 12.93 0 5 73 169 3 +280.42 ± 40.21
182243 ncm-dbt-04 1239187 500 213 50 237 +117.55 ± 14.53 0 11 71 162 6 +256.44 ± 40.73
182235 ncm-dbt-02 1242072 500 209 51 240 +113.68 ± 13.04 0 5 85 157 3 +251.89 ± 37.03
182234 ncm-dbt-03 1234269 500 206 42 252 +118.33 ± 14.2 0 9 74 161 6 +258.75 ± 39.96
182233 ncm-dbt-01 1213143 500 207 41 252 +119.89 ± 14.02 0 6 80 156 8 +258.75 ± 38.32
182232 ncm-dbt-04 1219690 500 213 36 251 +128.55 ± 13.19 0 4 71 169 6 +290.66 ± 40.76

Commit

Commit ID c3c46feebba470dcbaa0a5a6ef83534091dffe6a
Author Muzhen Gaming
Date 2023-04-01 13:53:46 UTC
Remove reduction for moving threatened piece Simplify away "Decrease reduction if we move a threatened piece". Running a dbg_hit_on() shows that this line is only called ~0.12% of the time. Simplification STC: https://tests.stockfishchess.org/tests/view/641ec2dcdb43ab2ba6f88103 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 146128 W: 39168 L: 39070 D: 67890 Ptnml(0-2): 466, 16117, 39830, 16155, 496 Simplification LTC: https://tests.stockfishchess.org/tests/view/64200689db43ab2ba6f8bca8 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 248016 W: 66703 L: 66714 D: 114599 Ptnml(0-2): 105, 24202, 75406, 24189, 106 closes https://github.com/official-stockfish/Stockfish/pull/4471 Bench: 4961236
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