CCRL 40/15
Downloads and Statistics
March 28, 2020
Testing summary:
Total: 1'132'680 games
played by 2'634 programs

White wins: 391'782 (34.6%)
Black wins: 290'390 (25.6%)
Draws: 450'508 (39.8%)
White score: 54.5%

Open source 32-bit engines

Comparing 353 engines!
95 best versions of selected engines played 3482 games with each other

CCRL 40/15 Rating List — Open source 32-bit engines (Quote)

Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k.
Computed on March 28, 2020 with Bayeselo based on 1'132'680 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 200 games or more. Normal font - less than 200 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1Lc0 0.22.0 T40B.4-160 GTX10503464+21−2162.1%−76.563.9%642 
88.5%
 Lc0 0.21.2 w42716 GTX10503442+29−2964.7%−89.459.8%336
100.0%
2ChessBrainVB 3.72 4CPU3168+30−3045.0%+30.451.3%320
51.9%
 ChessBrainVB 3.74 4CPU3164+128−13046.9%+18.056.3%16
72.3%
 ChessBrainVB 3.68 4CPU3124+26−2649.2%+4.651.6%428
82.1%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−26.748.7%378
98.6%
 ChessBrainVB 3.743068+18−1848.3%+9.249.6%937
68.4%
 ChessBrainVB 3.723062+15−1551.2%−9.743.6%1423
87.3%
3Stockfish 2.2.2 32-bit3050+14−1461.4%−73.948.4%1619
56.0%
 Sting SF 4.63048+30−3045.4%+28.447.0%334
56.3%
 ChessBrainVB 3.703045+23−2351.1%−10.548.1%551
62.5%
 Stockfish 2.3.1 32-bit3040+17−1757.2%−44.950.5%1095
60.6%
 ChessBrainVB 3.663036+23−2351.5%−10.051.2%568
69.5%
 Sting SF 4.73028+21−2244.9%+30.350.2%646
50.0%
 Stockfish 2.1.1 32-bit3028+16−1663.8%−92.643.0%1362
55.2%
 ChessBrainVB 3.683026+21−2150.1%−1.154.3%654
58.0%
4IvanHoe 9.46h 32-bit3023+14−1355.8%−37.053.6%1668
84.1%
 Stockfish 2.0.1 32-bit3012+17−1765.3%−99.646.2%1122
77.9%
 Sting SF 2 32-bit3003+17−1751.3%−9.651.2%1062
59.9%
 Stockfish 1.9.1 32-bit3000+16−1665.2%−98.147.0%1224
79.6%
 Stockfish 1.8 32-bit2990+17−1766.0%−101.247.6%1098
54.9%
 ChessBrainVB 3.612988+27−2749.3%+4.247.7%421
64.1%
5Gull II b2 32-bit2982+18−1846.8%+19.152.6%960
55.6%
 ChessBrainVB 3.502980+24−2452.4%−15.746.7%553
54.4%
 Gull II 32-bit2978+18−1846.0%+22.757.1%854
53.5%
 Stockfish 1.7.1 32-bit2977+16−1666.0%−105.745.7%1232
97.2%
6Protector 1.5.0 32-bit2948+25−2545.2%+27.551.7%470
82.0%
 Stockfish 1.6.3 32-bit2934+17−1761.2%−71.148.1%1118
83.8%
7Toga II 3.0 4CPU2919+22−2245.6%+27.449.0%592
58.1%
 ChessBrainVB 3.312916+25−2552.6%−14.645.1%503
78.5%
 Toga II 1.4.1SE 4CPU2904+13−1348.5%+11.141.6%2041
98.1%
 Gull 1.0a 32-bit2885+12−1245.6%+30.243.7%2268
50.1%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.945.8%996
72.3%
 Protector 1.4.0 32-bit2879+11−1145.6%+29.641.0%2804
56.6%
 Gull 1.1 32-bit2877+17−1747.4%+16.148.9%1051
51.4%
 Gull 1.2 32-bit2876+12−1245.6%+30.542.6%2306
56.6%
 ChessBrainVB 3.202874+25−2550.3%−2.447.4%489
59.1%
 Gull 0.12a 32-bit2870+21−2149.4%+3.244.8%717
67.6%
 Stockfish 1.5.1 32-bit2864+15−1555.0%−32.543.0%1518
89.6%
 Toga II 3.02851+16−1548.1%+10.642.9%1311
59.9%
 Gull 0.11a 32-bit2847+21−2146.8%+18.046.8%722
61.2%
8Booot 5.1.02844+10−1045.8%+29.141.4%3401
80.8%
9MinkoChess 1.3 32-bit2830+31−3146.0%+24.845.5%314
49.2%
 Protector 1.3.5 32-bit2830+15−1545.6%+27.945.9%1493
50.8%
 Stockfish 1.4 32-bit2830+16−1653.6%−23.949.1%1168
58.1%
 Cyclone xTreme Fury2827+19−1948.1%+10.948.8%811
53.6%
 Grapefruit 1.0 32-bit2826+9−948.4%+10.547.7%3991
48.2%
 Toga II 1.4.1SE2826+12−1250.0%+2.343.5%2395
57.0%
 Booot 5.02825+15−1645.2%+28.443.3%1350
54.0%
 Cyclone xTreme2824+13−1344.2%+37.645.8%2009
47.4%
 Protector 1.3.4 32-bit2824+15−1545.6%+28.846.2%1356
55.3%
 ChessBrainVB 3.032822+25−2549.9%−1.640.8%512
50.0%
 Cyclone 3.42822+21−2151.5%−8.447.2%685
54.5%
 Toga II 1.4.1SE62821+23−2350.4%−0.445.1%567
50.1%
 Cyclone xTreme Rage2820+25−2548.4%+9.846.8%476
61.9%
 Cyclone 2.22815+28−2849.1%+5.047.4%382
48.0%
 Toga II 3.1.2SE2815+17−1752.9%−19.243.6%1051
74.6%
 TheMadPrune 1.1.252805+24−2451.4%−9.648.0%504
56.3%
 Toga II 1.4 beta5c2803+23−2352.9%−19.345.9%564
52.2%
 Protector 1.3.1b 32-bit2802+23−2348.8%+8.443.6%608
65.1%
 Protector 1.3.2 32-bit2796+21−2145.7%+25.350.4%659
56.1%
 Stockfish 1.3.1 32-bit2793+25−2546.1%+25.041.4%512
60.1%
 Toga II 1.3.12789+12−1250.0%−0.642.1%2565
66.1%
 Grapefruit 1.0a32782+31−3248.1%+11.741.6%315
49.9%
 MinkoChess 1.2 32-bit2782+14−1445.6%+30.740.7%1765
53.8%
 Cyclone 1.02781+32−3251.0%−7.839.3%300
50.3%
 Stockfish 1.2 Default2780+21−2246.1%+24.144.5%679
76.8%
 Toga II 1.3.42767+28−2852.9%−18.042.1%411
55.3%
10‑11Glaurung 2.1 32-bit2765+17−1846.3%+25.139.5%1067
50.2%
10‑11Texel 1.01 32-bit2765+28−2852.2%−18.635.0%432
63.6%
 Toga II 1.2.1a 32-bit2760+12−1250.5%−7.139.2%2354
62.9%
 Glaurung 2.2 32-bit2755+24−2446.0%+24.841.4%565
63.8%
12Scorpio 2.7 32-bit2749+20−2049.0%+9.236.2%826
55.3%
 Stockfish 1.012747+31−3150.5%−5.843.8%322
54.6%
 MinkoChess 1.0 32-bit2744+32−3249.8%+1.641.1%314
56.9%
 MinkoChess 1.1 32-bit2741+27−2745.7%+25.840.9%455
55.1%
 Glaurung 2.0.1 32-bit2738+16−1647.2%+17.240.6%1196
57.7%
 Toga II 1.2 32-bit2735+25−2552.4%−18.337.2%511
56.6%
13Crafty 23.4 32-bit2733+19−1950.8%−5.740.4%861
52.5%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+114.936.7%607
50.9%
 Toga II 1.1a 32-bit2731+16−1652.8%−18.538.9%1275
62.3%
14Bison 9.11 32-bit2728+14−1448.5%+9.937.2%1810
74.8%
 Crafty 23.3 32-bit2716+32−3250.5%−4.441.4%309
68.9%
15Critter 0.42 32-bit2706+25−2551.9%−12.941.1%494
67.1%
 Booot 4.15.12697+30−3046.1%+23.842.1%359
51.0%
16DanaSah 8.32697+24−2452.2%−19.940.1%558
49.4%
 Glaurung 2 epsilon/5 32-bit2697+27−2748.1%+10.635.8%441
52.1%
 Crafty 23.2 32-bit2696+32−3247.8%+15.640.0%320
51.0%
 Fruit 2.12695+25−2551.5%−13.637.2%522
53.2%
 Scorpio 2.6 32-bit2694+31−3148.9%+7.041.7%321
50.6%
 Booot 4.15.02693+14−1445.9%+26.844.9%1651
53.7%
17Vajolet 2.482692+31−3148.9%+5.033.9%348
59.5%
 Crafty 23.1 32-bit2687+18−1846.2%+24.842.2%970
54.8%
18Bobcat 3.25 32-bit2685+31−3146.9%+22.632.2%351
68.0%
 MinkoChess 0.8 32-bit2674+33−3351.3%−12.941.5%301
59.6%
 ChessBrainVB 2.052669+23−2349.6%+1.636.1%609
49.2%
19K2 0.952669+20−2046.9%+21.831.8%871
51.4%
 Scorpio 1.92669+30−3050.1%−3.834.0%362
51.7%
20Daydreamer 1.75 32-bit2668+17−1747.7%+14.441.2%1157
49.2%
 Glaurung 1.2.1 Avalanche 32-bit2668+32−3252.1%−16.035.4%328
53.5%
 Booot 4.14.02667+20−2051.4%−10.041.8%765
48.6%
 Scorpio 1.842667+32−3247.2%+9.529.9%354
56.6%
 Glaurung 1.2.1 Crusader 32-bit2664+32−3251.6%−14.928.6%343
49.5%
 Scorpio 2.5 32-bit2664+32−3249.5%+3.842.3%307
55.7%
 Scorpio 1.912661+13−1445.5%+30.336.7%1883
51.4%
 Vajolet 2.032661+24−2451.2%−11.633.8%562
53.2%
 Bobcat 2.75 32-bit2659+24−2447.7%+15.336.9%558
61.2%
 Glaurung 1.2.1 32-bit2655+16−1646.4%+23.933.6%1265
49.8%
 Scorpio 2.02b2655+30−3047.3%+17.637.2%355
54.9%
 Scorpio 2.0 32-bit2653+17−1745.9%+29.534.1%1256
51.9%
 Scorpio 2.1 32-bit2652+34−3449.1%+4.838.2%280
58.6%
21Cyrano 0.6b17 32-bit2648+14−1448.6%+8.740.5%1653
58.0%
 Scorpio 1.812644+34−3449.8%+5.731.4%299
57.5%
 Scorpio 1.82641+20−2047.3%+18.135.7%869
51.0%
 DanaSah 7.32640+14−1449.4%+5.134.8%1709
58.0%
22RedQueen 1.0.0 32-bit2637+24−2451.6%−7.435.9%576
52.3%
 DanaSah 7.92636+19−1949.2%+5.327.3%944
50.3%
 Scorpio 2.05b2636+32−3250.5%−1.840.8%306
53.0%
 Glaurung 1.0.2 32-bit2635+17−1747.4%+19.832.0%1209
62.3%
23Cheng3 1.07 32-bit2630+26−2646.6%+22.531.7%517
49.2%
 Crafty 23.0 32-bit2630+29−2949.9%+1.641.3%380
53.3%
24‑25Delfi 5.12629+25−2646.3%+23.433.9%522
48.4%
24‑25Nawito 19062629+25−2549.4%+5.437.8%537
55.9%
 Glaurung 1.1 32-bit2626+33−3348.8%+10.832.1%324
55.1%
26Arasan 13.4 32-bit2623+30−3049.7%+1.834.8%374
57.6%
 Bison 9.62620+23−2351.3%−13.933.9%635
50.9%
27Phalanx XXV2619+15−1549.6%+2.732.3%1501
54.3%
 DanaSah 7.02618+26−2651.3%−10.237.8%479
51.5%
 Arasan 14.1 32-bit2617+33−3349.0%+4.533.3%309
51.7%
 Bison 9.8 32-bit2616+33−3249.8%−1.233.7%309
49.3%
28Caligula 0.9g2616+22−2154.0%−29.729.4%754
50.1%
 K2 0.912616+15−1549.0%+7.232.9%1497
66.5%
 Arasan 13.2 32-bit2609+32−3251.0%−6.338.5%312
56.7%
 DanaSah 6.502605+22−2249.7%+1.036.0%691
51.5%
 Scorpio 1.72604+32−3249.7%+0.438.1%310
53.4%
 DanaSah 6.802603+28−2850.5%−2.940.3%412
57.2%
 Delfi 5.02599+20−2047.5%+15.737.1%805
51.3%
 Nawito 18122599+20−2048.3%+11.933.0%892
48.8%
29Sloppy 0.2.2 32-bit2599+14−1448.1%+12.437.8%1775
57.2%
 Crafty 22.8 32-bit2596+32−3248.7%+6.935.9%315
57.8%
30CuckooChess 1.12 32-bit2592+25−2548.8%+9.029.8%531
59.2%
31Betsabe II 1.962588+23−2351.0%−5.726.1%654
51.3%
 Booot 4.13.12587+28−2849.4%+1.839.9%404
52.6%
 RedQueen 1.1.1 32-bit2586+33−3350.6%−0.535.7%308
52.4%
 Nawito 1.1d2585+28−2850.2%−2.936.7%401
52.5%
 K2 0.872583+18−1749.0%+6.434.7%1102
56.2%
 Crafty 22.4 32-bit2581+32−3248.1%+11.337.7%318
54.3%
 Arasan 13.1 32-bit2578+32−3247.9%+14.237.5%312
51.6%
 RedQueen 0.9.8 32-bit2577+22−2249.6%+5.327.7%730
54.4%
 Cheng3 1.04 32-bit2575+32−3250.2%−1.634.0%326
58.7%
 Bobcat 20110414 32-bit2570+31−3149.4%+2.641.5%325
51.3%
 DanaSah 5.072570+17−1749.9%−1.237.2%1191
49.1%
 Scorpio 2.2 32-bit2570+28−2847.1%+20.435.3%417
56.2%
32Brutus 8.05 32-bit2567+17−1749.1%+4.336.8%1142
53.9%
 CuckooChess 1.11 32-bit2566+29−2950.4%−3.334.1%384
48.8%
 Cyrano 0.52566+32−3150.5%−2.235.9%326
52.4%
 Arasan 12.3 32-bit2565+24−2446.8%+23.730.0%597
52.0%
 Cheng3 1.06 32-bit2564+30−3047.3%+15.935.9%357
53.4%
 Bobcat 20110220 32-bit2562+32−3248.7%+8.035.0%311
54.6%
 Cheng3 1.05 32-bit2560+32−3248.0%+14.133.6%324
51.2%
 Arasan 11.7 32-bit2559+32−3249.2%+5.936.0%308
55.9%
 DanaSah 4.882556+22−2250.5%−3.733.9%676
58.3%
 DanaSah 5.002552+29−2948.5%+9.032.2%395
53.9%
 Crafty 21.6 32-bit2550+34−3447.8%+12.830.1%302
60.3%
 Betsabe II 1.842545+14−1448.3%+13.525.6%1851
55.2%
 Crafty 21.5 32-bit2542+32−3248.3%+13.828.5%344
51.1%
 DanaSah 4.662542+26−2648.1%+11.335.2%475
52.1%
 DanaSah 4.602541+25−2548.5%+10.335.1%513
50.1%
33Tucano 1.042541+30−3047.2%+17.136.5%359
53.3%
34Rodent 0.102539+33−3351.1%−10.431.9%313
51.7%
 Crafty 22.0 32-bit2538+33−3348.5%+9.831.9%304
50.9%
 Phalanx XXIV2537+20−2048.7%+7.927.3%887
55.0%
 Caligula 0.82536+19−1949.1%+6.226.3%938
54.7%
 K2 0.832534+27−2751.7%−12.733.3%474
50.8%
 Arasan 11.6 32-bit2533+33−3351.8%−12.532.6%304
52.9%
 Arasan 12.1 32-bit2531+32−3351.4%−11.627.3%326
50.2%
 CuckooChess 1.102531+31−3151.5%−11.534.5%330
51.8%
35Nemeton 1.8 4CPU2530+27−2749.9%+2.127.2%496
56.6%
 DanaSah 4.242527+17−1751.5%−10.136.9%1128
67.6%
36EXchess 6.10b 32-bit2519+33−3249.4%+3.532.5%314
53.2%
 Crafty 20.14 32-bit2517+27−2747.4%+19.833.4%482
54.0%
 Brutus 7.02b2515+19−1852.0%−15.635.4%994
51.7%
 DanaSah 5.062515+32−3249.5%+1.135.1%319
51.6%
 DanaSah 4.452514+29−2949.9%+1.338.4%378
55.7%
 Arasan 10.0 32-bit2510+33−3349.0%+6.628.8%309
50.1%
 Crafty 20.13 32-bit2510+33−3348.7%+10.133.3%312
52.1%
 CuckooChess 1.092509+33−3351.6%−12.826.8%317
51.7%
 Betsabe II 1.752508+22−2251.8%−14.323.3%730
56.9%
 DanaSah 4.372505+32−3249.7%+1.838.3%321
54.7%
 Crafty 20.11 32-bit2502+33−3349.8%+3.730.0%307
49.5%
37Pawny 0.3.1 32-bit2502+33−3348.9%+8.528.7%310
52.3%
 Arasan 11.3 32-bit2501+33−3448.7%+7.930.9%301
59.4%
 Arasan 10.32496+23−2445.6%+32.030.6%634
51.7%
 Cheng3 1.03 32-bit2495+32−3350.6%−5.530.8%318
51.8%
38GreKo 9.2 32-bit2494+33−3349.7%+1.932.9%304
53.7%
 K2 0.752492+23−2352.4%−18.432.8%634
58.4%
 Arasan 11.4 32-bit2488+34−3449.0%+7.728.5%305
49.7%
39DoubleCheck 3.1 32-bit2488+34−3451.0%−8.124.8%306
51.0%
 GreKo 8.2 32-bit2487+26−2649.1%+5.933.8%506
62.4%
 Arasan 10.2 32-bit2482+25−2545.5%+34.328.0%600
49.0%
40Pepito 1.59 32-bit2482+24−2449.6%+1.134.0%583
60.0%
41BBChess 1.3b2478+24−2450.1%−1.038.6%559
60.3%
 BBChess 1.3a2473+25−2551.6%−12.730.5%528
54.3%
 Arasan 10.42471+20−2145.5%+32.630.0%850
54.0%
42Counter 1.22470+17−1748.2%+12.738.5%1139
59.2%
 Nemeton 1.812466+24−2447.1%+20.033.8%577
57.1%
 Betsabe II 1.662463+22−2246.7%+24.528.4%718
52.1%
43Carballo 1.32462+25−2547.4%+18.231.0%561
53.7%
 Carballo 1.22461+23−2353.5%−23.129.7%644
48.9%
 Pawny 0.3 32-bit2461+33−3349.2%+3.934.3%303
53.4%
 Nemeton 1.82460+17−1751.9%−15.627.3%1250
57.5%
 Counter 1.12457+23−2350.8%−8.337.7%632
59.2%
 Nemeton 1.512453+22−2249.8%−0.428.8%732
54.3%
 Cyrano 0.32451+34−3449.2%+4.523.8%311
51.2%
 GreKo 8.0 32-bit2450+29−2950.6%−3.529.7%411
56.3%
 Arasan 9.52446+36−3647.3%+17.323.7%291
56.4%
 Arasan 10.12443+27−2746.8%+28.528.5%508
48.9%
 Betsabe II 1.472443+20−2049.9%+2.325.3%902
49.7%
44Typhoon 1.00-3482443+33−3348.5%+11.829.2%325
52.3%
 Cheng3 1.02b2442+33−3350.2%−4.130.4%312
53.9%
 K2 0.792440+29−2947.4%+18.730.6%402
50.9%
 Nemeton 1.62439+24−2446.4%+25.431.8%604
58.6%
 Critter 0.382435+32−3251.1%−8.933.4%320
50.0%
 Typhoon 1.00-3582435+17−1748.2%+11.831.1%1220
53.9%
45Murka 2 32-bit2433+30−3047.4%+18.826.3%400
57.1%
 GreKo 7.2 32-bit2429+33−3348.4%+9.935.5%304
51.4%
 DanaSah 3.632428+27−2748.4%+10.732.3%477
52.9%
 Arasan 9.22427+34−3446.1%+27.630.9%304
54.3%
 Nemeton 1.612424+28−2847.3%+18.232.3%421
56.2%
 DanaSah 2.852421+33−3349.0%+8.433.8%305
51.8%
 Nemeton 1.72420+18−1849.6%+0.725.2%1141
51.6%
46Kiwi 0.6d 32-bit2419+19−1948.3%+10.527.0%975
52.5%
 K2 0.712418+28−2851.4%−9.127.6%439
59.2%
 Pawny 0.2.2 32-bit2413+34−3448.8%+8.928.6%301
51.9%
47Diablo 0.5.12412+18−1848.8%+8.432.4%1082
52.5%
 Typhoon 1.00-3142411+34−3450.2%−0.123.0%305
56.3%
48RomiChess P3k 32-bit2408+19−1949.2%+5.233.0%906
61.7%
49Amy 0.87b2403+24−2449.4%+7.125.7%610
50.9%
 Cyrano 0.2f2403+32−3348.4%+13.632.9%316
49.0%
 Pawny 0.2.1 32-bit2403+31−3147.1%+20.225.5%373
54.0%
 Pawny 0.2 32-bit2401+29−2949.2%+5.530.8%396
56.2%
50Simplex 0.9.8 32-bit2398+30−3049.0%+5.131.2%359
56.8%
 Phalanx XXII2394+25−2450.1%−0.823.5%595
68.9%
 DoubleCheck 2.5.4 32-bit2384+33−3350.5%−3.728.6%318
51.3%
 RomiChess P3L 32-bit2383+33−3346.3%+28.633.4%314
54.9%
51Thor's Hammer 2.28 32-bit2381+22−2248.7%+9.429.1%704
53.5%
 GreKo 6.302379+33−3348.0%+13.531.6%307
56.8%
 Carballo 1.1.12375+32−3247.5%+18.927.4%340
52.6%
 Counter 1.02373+32−3250.3%−3.735.3%312
50.4%
 Typhoon 1.00-2852373+34−3449.5%+2.520.1%314
52.1%
52Ifrit m1.5 32-bit2372+27−2746.6%+24.329.1%453
50.7%
 GreKo 7.02371+28−2846.3%+29.127.8%454
54.4%
 GreKo 6.252369+33−3348.5%+9.231.5%308
57.9%
 GreKo 6.52365+26−2648.9%+6.931.5%495
49.8%
 Phalanx XXIII2365+32−3246.3%+23.624.8%351
66.3%
 Nemeton 1.412356+25−2547.6%+18.533.7%514
51.6%
 K2 0.672355+23−2352.7%−17.329.7%677
51.5%
 Nemeton 1.32354+31−3152.1%−17.033.5%340
52.1%
 Counter 0.82353+32−3248.6%+11.035.6%312
56.2%
 GreKo 5.92350+24−2446.4%+27.929.3%621
60.5%
 Ifrit m1.6 32-bit2345+32−3247.5%+14.435.0%314
53.0%
53Xpdnt 0907042343+33−3351.8%−13.829.0%314
62.4%
 Daydreamer 1.52336+22−2252.1%−18.334.3%722
60.9%
 Nemeton 1.12331+29−2947.5%+17.131.3%393
55.3%
54Amundsen 0.802329+17−1749.1%+6.929.2%1269
60.8%
 Simplex 0.9.7 32-bit2324+31−3148.6%+9.725.4%370
69.9%
 GreKo 5.52312+33−3350.7%−5.533.1%305
54.3%
 Nemeton 1.22310+26−2646.3%+23.328.7%516
66.4%
55Natwarlal 0.142303+19−1949.1%+6.225.2%1027
50.4%
 Brutus 6.12302+34−3448.4%+8.525.0%312
52.0%
 Xpdnt 0809272301+29−2951.2%−8.124.8%428
63.5%
 Pawny 0.1.62294+33−3352.1%−15.824.4%328
50.7%
 Natwarlal 0.122293+34−3449.4%+7.626.6%308
50.3%
 Nemeton 1.02293+30−3052.6%−18.127.4%383
71.1%
 Brutus 5.42280+34−3450.7%−4.429.1%302
51.7%
 GreKo 5.2.52279+34−3451.3%−12.026.6%297
81.5%
56Sungorus 1.4 32-bit2261+21−2148.2%+11.826.5%820
59.2%
 Sungorus 1.3 32-bit2256+34−3452.7%−16.624.3%301
53.7%
57RattateChess 1.0 Nosferatu2254+18−1949.9%+0.727.8%1036
53.3%
 Brutus 6.02252+35−3548.8%+5.722.6%301
51.9%
 EXchess 5.01b 32-bit2251+29−2946.5%+21.531.2%401
74.7%
58Feuerstein 0.4.6.12239+19−1949.1%+6.228.5%944
53.1%
 Betsabe II 1.08c2238+35−3549.2%+7.621.0%300
72.1%
 Vajolet 1.62.12223+34−3447.7%+12.228.4%310
55.6%
59Bagatur 1.2d 32-bit2220+34−3446.8%+19.527.2%298
52.6%
60Beowulf 2.4a 32-bit2218+19−1953.5%−26.424.8%982
65.7%
61ZCT 0.3.24512211+27−2749.4%+4.325.5%478
52.3%
 Betsabe II 1.09c2210+34−3448.2%+12.019.8%308
56.9%
62Jazz 501 32-bit2206+29−2952.5%−17.828.5%418
56.6%
63MORA 1.0.02203+28−2852.8%−20.327.5%440
51.4%
 RattateChess Bologna 20072202+25−2551.3%−9.625.0%588
58.8%
 MORA 1.1.02198+30−3048.6%+10.525.6%386
52.3%
 Carballo 0.82196+22−2247.2%+19.630.6%706
50.2%
 Jazz 444 32-bit2196+32−3250.3%−2.925.2%353
62.4%
 Amundsen 0.65.12189+34−3448.7%+7.623.9%305
50.7%
 Feuerstein 0.4.5.22188+37−3749.2%+9.124.7%255
49.9%
 K2 0.572188+33−3347.0%+22.625.8%314
67.1%
 RedQueen 0.62178+30−3046.1%+27.719.9%418
53.8%
 Feuerstein 0.4.62176+38−3850.6%−2.118.5%259
51.7%
 Sungorus 1.22175+26−2652.4%−18.128.7%499
56.6%
 Pawny 0.132171+32−3252.2%−17.220.1%363
60.6%
 Simplex 0.9.3 32-bit2165+34−3448.9%+8.524.8%315
57.4%
 Betsabe II 1.052160+34−3445.2%+33.724.2%314
53.3%
64OliThink 5.1.92158+30−3046.6%+28.021.3%417
51.5%
 Bagatur 1.2b 32-bit2157+33−3446.2%+28.829.1%306
53.3%
65Chesley r323 32-bit2156+24−2448.9%+8.520.7%641
59.3%
 Ifrit j4.32151+28−2845.9%+28.629.5%440
68.8%
 K2 0.43f2141+33−3348.2%+11.221.3%338
54.0%
66Prophet 2.0 32-bit2139+19−1949.3%+4.324.0%1025
55.4%
67Parrot 07.07.222137+19−1947.3%+19.723.0%1047
51.7%
 Parrot 07.01.162136+31−3146.6%+25.921.1%394
68.5%
 Ifrit j4.22125+34−3445.5%+31.126.4%303
64.4%
 DoubleCheck 2.1 32-bit2116+33−3346.3%+30.721.8%362
54.5%
68ChessKISS 1.3a 32-bit2113+32−3347.0%+18.830.3%320
77.8%
 Carballo 0.52098+23−2347.1%+20.021.9%694
77.4%
 Feuerstein 0.4.5.12081+38−3848.0%+12.325.8%248
48.7%
 Ifrit j2.92081+34−3448.2%+12.321.3%314
53.1%
69AdroitChess 0.42080+23−2356.5%−60.415.1%832
92.8%
 ZCT 0.3.25002050+32−3246.2%+30.216.8%381
53.1%
70PLP 16615712049+22−2246.2%+27.224.2%768
59.8%
71Jabba 1.0 32-bit2045+21−2144.8%+38.725.0%839
85.7%
72Faile 1.4.42028+23−2355.2%−28.122.1%774
53.5%
73Slibo 0.5.12026+26−2645.5%+34.119.4%573
91.5%
74BibiChess 0.52001+24−2545.7%+32.226.5%607
61.2%
75Cupcake 1.01996+31−3145.5%+31.122.7%401
54.4%
76Schola 1.1.0 32-bit1993+26−2645.6%+33.025.1%514
68.9%
 AdroitChess 0.31984+25−2544.2%+46.718.5%626
85.0%
77Dabbaba 5.671966+25−2545.5%+33.126.4%557
65.4%
78Sissa 2.01959+23−2353.1%−23.130.1%678
55.6%
79Monik 2.2.3 32-bit1956+30−3044.4%+39.227.1%395
51.0%
 Feuerstein 0.4.4.21955+28−2941.2%+92.518.7%518
52.5%
80Wowl 1.3.81954+26−2745.4%+35.413.3%573
54.5%
81Smash 1.0.31952+26−2640.8%+74.217.8%574
68.9%
82Micro-Max 4.8 (DM-PII)1944+20−2048.3%+12.226.1%865
59.1%
 Dabbaba 6.521940+22−2248.6%+11.320.3%777
63.3%
83Eia 0.31935+20−2047.1%+22.424.4%914
71.1%
 Wowl 1.3.71926+25−2546.8%+24.611.7%630
75.8%
 Carballo 0.41911+32−3335.8%+103.634.8%342
56.0%
 Dabbaba 7.491908+12−1247.8%+17.319.9%3152
52.9%
 Jabba 130320121907+31−3139.1%+97.516.7%442
58.6%
84ChessterfieldCL i5a1902+24−2440.6%+74.020.4%657
68.8%
 Micro-Max 4.81893+28−2836.7%+103.024.7%493
77.6%
85CDrill 1800 build 41879+23−2441.4%+72.815.5%741
100.0%
86RataAeroespacial 0.2.11816+13−1342.5%+64.412.9%2478
100.0%
87TSCP 1.811693+19−2047.4%+21.517.0%1072
84.4%
88Spartan 1.01675+25−2563.5%−103.221.2%624
67.4%
89Philemon C1667+25−2562.3%−94.622.0%626
59.4%
90VanillaChess 2.6g1663+25−2561.5%−89.120.2%624
100.0%
91PolarChess 1.31575+25−2549.3%+3.116.9%629
56.3%
92Darky 0.5d1572+24−2443.5%+55.920.8%677
98.7%
93MSCP 1.6h1530+25−2544.0%+50.515.1%628
99.8%
94Apep 1.011480+25−2541.2%+71.910.1%683
100.0%
95BACE 0.461379+23−2421.5%+256.89.8%1027
 

Results matrix

Open source 32-bit engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.22.0 T40B.4-160 GTX10503464            
2ChessBrainVB 3.72 4CPU3168            
3Stockfish 2.2.2 32-bit3050   26 − 28
+8−10=36
−38
19 − 13
+11−5=16
−13
  33 − 5
+28−0=10
+71
    
4IvanHoe 9.46h 32-bit3023  28 − 26
+10−8=36
+38
 21 − 10
+11−0=20
+54
20 − 10
+12−2=16
+22
 28.5 − 5.5
+23−0=11
+60
    
5Gull II b2 32-bit2982  13 − 19
+5−11=16
+13
10 − 21
+0−11=20
−54
        
6Protector 1.5.0 32-bit2948   10 − 20
+2−12=16
−22
        
7Toga II 3.0 4CPU2919       1.5 − 0.5
+1−0=1
+67
    
8Booot 5.1.02844  5 − 33
+0−28=10
−71
5.5 − 28.5
+0−23=11
−60
  0.5 − 1.5
+0−1=1
−67
 3.5 − 6.5
+1−4=5
−101
 6 − 0
+6−0=0
+INF
13.5 − 9.5
+9−5=9
−45
9MinkoChess 1.3 32-bit2830       6.5 − 3.5
+4−1=5
+101
  7.5 − 2.5
+6−1=3
+105
 
10Glaurung 2.1 32-bit2765            
11Texel 1.01 32-bit2765       0 − 6
+0−6=0
−INF
2.5 − 7.5
+1−6=3
−105
   
12Scorpio 2.7 32-bit2749       9.5 − 13.5
+5−9=9
+45
    
Performance color legend:
(Only pairs with at least 30 games)
-120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120

LOS matrix

Open source 32-bit engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.22.0 T40B.4-160 GTX10503464 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2ChessBrainVB 3.72 4CPU31680.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Stockfish 2.2.2 32-bit30500.00.0 99.8100.0100.0100.0100.0100.0100.0100.0100.0
4IvanHoe 9.46h 32-bit30230.00.00.2 100.0100.0100.0100.0100.0100.0100.0100.0
5Gull II b2 32-bit29820.00.00.00.0 98.6100.0100.0100.0100.0100.0100.0
6Protector 1.5.0 32-bit29480.00.00.00.01.4 94.8100.0100.0100.0100.0100.0
7Toga II 3.0 4CPU29190.00.00.00.00.05.2 100.0100.0100.0100.0100.0
8Booot 5.1.028440.00.00.00.00.00.00.0 80.8100.0100.0100.0
9MinkoChess 1.3 32-bit28300.00.00.00.00.00.00.019.2 100.099.9100.0
10Glaurung 2.1 32-bit27650.00.00.00.00.00.00.00.00.0 50.287.3
11Texel 1.01 32-bit27650.00.00.00.00.00.00.00.00.149.8 81.2
12Scorpio 2.7 32-bit27490.00.00.00.00.00.00.00.00.012.718.8 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Rating list
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Results table
Performance table
Score table
LOS table
Proportion of draws
Number of games
Number of connecting games
Percentage of connecting games
Score with common opponents
Score with all opponents
Performance with common opponents
Performance with all opponents
LOS with common opponents
LOS with all opponents

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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on March 28, 2020