CCRL 40/40
Downloads and Statistics
May 18, 2019
Testing summary:
Total: 1'044'560 games
played by 2'452 programs
143157 CPU days (X2 4600+)

White wins: 363'036 (34.8%)
Black wins: 270'297 (25.9%)
Draws: 411'227 (39.4%)
White score: 54.4%

Open source 32-bit engines

Comparing 337 engines!
92 best versions of selected engines played 3318 games with each other

CCRL 40/40 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 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern Intel CPU.
Computed on May 18, 2019 with Bayeselo based on 1'044'560 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+
1ChessBrainVB 3.72 4CPU3179+38−3844.3%+35.050.0%202 
98.9%
 ChessBrainVB 3.68 4CPU3123+26−2649.2%+4.651.6%428
81.5%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−27.348.7%378
99.7%
 ChessBrainVB 3.723059+16−1651.5%−10.943.2%1249
79.7%
2Stockfish 2.2.2 32-bit3050+14−1461.8%−76.548.3%1599
57.1%
 Sting SF 4.63047+30−3045.4%+29.047.0%334
57.3%
 ChessBrainVB 3.703044+23−2351.1%−10.448.1%551
61.8%
 Stockfish 2.3.1 32-bit3039+17−1757.2%−44.550.5%1095
62.0%
 ChessBrainVB 3.663035+23−2351.5%−10.251.2%568
66.7%
 Sting SF 4.73028+22−2244.5%+32.750.5%632
51.6%
 Stockfish 2.1.1 32-bit3027+16−1663.8%−92.043.0%1362
56.8%
 ChessBrainVB 3.683025+21−2150.1%−1.254.3%654
56.4%
3IvanHoe 9.46h 32-bit3023+14−1355.8%−37.553.6%1668
80.9%
 Stockfish 2.0.1 32-bit3013+18−1766.9%−109.646.2%1074
80.6%
 Sting SF 2 32-bit3002+17−1751.3%−9.251.2%1062
56.1%
 Stockfish 1.9.1 32-bit3001+17−1766.5%−107.146.2%1156
80.2%
 ChessBrainVB 3.612987+27−2749.3%+3.947.7%421
49.7%
 Stockfish 1.8 32-bit2987+18−1867.5%−110.247.5%1020
66.3%
4Gull II b2 32-bit2982+18−1846.8%+18.552.6%960
56.5%
 ChessBrainVB 3.502979+24−2452.4%−15.746.7%553
53.5%
 Gull II 32-bit2978+18−1846.0%+22.157.1%854
53.0%
 Stockfish 1.7.1 32-bit2977+17−1766.9%−111.445.4%1182
97.2%
5Protector 1.5.0 32-bit2947+25−2545.2%+27.751.7%470
83.1%
 Stockfish 1.6.3 32-bit2932+17−1761.1%−70.348.2%1104
82.4%
6Toga II 3.0 4CPU2919+22−2245.6%+26.949.0%592
57.5%
 ChessBrainVB 3.312915+26−2653.6%−20.245.3%475
76.6%
 Toga II 1.4.1SE 4CPU2905+13−1348.5%+10.341.6%2041
98.2%
 Gull 1.0a 32-bit2885+12−1245.1%+33.744.1%2174
50.1%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.945.8%996
73.8%
 Protector 1.4.0 32-bit2878+11−1145.3%+32.140.9%2724
55.1%
 Gull 1.1 32-bit2877+17−1747.4%+15.948.9%1051
55.2%
 Gull 1.2 32-bit2875+12−1245.2%+32.542.7%2278
54.7%
 ChessBrainVB 3.202873+25−2550.3%−2.147.4%489
63.1%
 Gull 0.12a 32-bit2868+21−2149.6%+2.344.3%697
60.5%
 Stockfish 1.5.1 32-bit2864+15−1555.4%−34.543.1%1486
89.9%
 Toga II 3.02850+16−1548.1%+11.442.9%1311
60.8%
 Gull 0.11a 32-bit2847+21−2146.8%+17.646.8%722
61.5%
7Booot 5.1.02843+10−1045.4%+32.041.5%3314
91.2%
 Stockfish 1.4 32-bit2830+16−1653.8%−25.148.7%1130
51.6%
8MinkoChess 1.3 32-bit2829+31−3146.0%+25.245.5%314
49.0%
 Protector 1.3.5 32-bit2829+15−1545.2%+31.046.1%1473
59.0%
 Cyclone xTreme Fury2827+19−1948.1%+10.648.8%811
53.3%
 Grapefruit 1.0 32-bit2826+9−948.4%+10.347.7%3991
47.3%
 Toga II 1.4.1SE2826+12−1250.0%+2.343.5%2395
55.7%
 Booot 5.02825+15−1545.0%+30.143.5%1336
53.7%
 Protector 1.3.4 32-bit2824+15−1545.6%+28.446.2%1356
52.2%
 Cyclone xTreme2823+13−1344.2%+38.345.8%2009
55.0%
 ChessBrainVB 3.032822+25−2549.9%−2.440.8%512
48.4%
 Cyclone 3.42822+21−2151.5%−8.347.2%685
54.0%
 Toga II 1.4.1SE62821+23−2350.4%−0.245.1%567
50.9%
 Cyclone xTreme Rage2820+25−2548.4%+9.646.8%476
56.0%
 Toga II 3.1.2SE2818+18−1853.5%−23.643.7%1019
57.0%
 Cyclone 2.22815+28−2849.1%+5.347.4%382
69.6%
 TheMadPrune 1.1.252805+24−2451.4%−9.648.0%504
53.1%
 Toga II 1.4 beta5c2804+24−2453.3%−21.846.1%542
55.7%
 Protector 1.3.1b 32-bit2801+23−2348.8%+9.243.6%608
65.3%
 Protector 1.3.2 32-bit2795+21−2145.7%+26.050.4%659
55.3%
 Stockfish 1.3.1 32-bit2793+25−2546.1%+25.141.4%512
60.4%
 Toga II 1.3.12789+12−1250.0%−0.842.1%2565
64.9%
 Grapefruit 1.0a32783+32−3247.7%+14.342.4%309
51.3%
 MinkoChess 1.2 32-bit2782+14−1445.6%+30.540.7%1765
52.8%
 Cyclone 1.02781+32−3251.0%−7.639.3%300
52.3%
 Stockfish 1.2 Default2780+22−2245.6%+26.544.4%667
76.0%
 Toga II 1.3.42767+28−2852.9%−18.542.1%411
54.6%
9‑10Glaurung 2.1 32-bit2765+18−1845.7%+28.339.6%1044
50.6%
9‑10Texel 1.01 32-bit2765+28−2852.2%−18.935.0%432
63.5%
 Toga II 1.2.1a 32-bit2759+12−1250.5%−6.439.2%2354
63.7%
 Glaurung 2.2 32-bit2754+24−2445.6%+27.941.1%555
51.9%
 Stockfish 1.012753+32−3252.5%−19.045.4%302
58.9%
11Scorpio 2.7 32-bit2749+20−2049.0%+9.036.2%826
61.5%
 MinkoChess 1.0 32-bit2743+32−3249.4%+4.940.9%308
55.9%
 MinkoChess 1.1 32-bit2740+27−2745.7%+26.740.9%455
55.4%
 Glaurung 2.0.1 32-bit2738+16−1647.2%+16.940.6%1196
58.3%
 Toga II 1.2 32-bit2735+25−2552.4%−18.937.2%511
55.6%
12Crafty 23.4 32-bit2733+19−1950.8%−5.740.4%861
52.0%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+114.936.7%607
50.6%
 Toga II 1.1a 32-bit2732+16−1653.7%−25.038.7%1231
63.7%
13Bison 9.11 32-bit2728+14−1448.5%+9.637.2%1810
74.8%
 Crafty 23.3 32-bit2716+32−3250.5%−4.641.4%309
68.8%
14Critter 0.42 32-bit2706+25−2551.9%−13.141.1%494
67.3%
 Booot 4.15.12697+30−3046.1%+23.542.1%359
50.8%
 Glaurung 2 epsilon/5 32-bit2696+27−2748.1%+11.135.8%441
51.3%
 Scorpio 2.6 32-bit2696+32−3249.5%+3.743.2%301
50.3%
 Crafty 23.2 32-bit2695+32−3247.8%+16.340.0%320
51.6%
 Fruit 2.12695+25−2551.5%−14.237.2%522
54.5%
 Booot 4.15.02693+14−1445.7%+28.245.4%1619
53.1%
15Vajolet 2.482692+31−3148.9%+4.933.9%348
62.0%
 Crafty 23.1 32-bit2686+18−1845.9%+26.542.0%958
52.8%
16Bobcat 3.25 32-bit2685+31−3146.9%+22.232.2%351
68.0%
 MinkoChess 0.8 32-bit2674+33−3351.3%−13.341.5%301
59.6%
 ChessBrainVB 2.052669+23−2349.6%+1.336.1%609
52.8%
17Daydreamer 1.75 32-bit2668+17−1747.7%+14.141.2%1157
49.7%
 Glaurung 1.2.1 Avalanche 32-bit2668+32−3252.1%−16.735.4%328
49.2%
 Scorpio 1.92668+30−3050.1%−3.434.0%362
52.3%
 Scorpio 1.842667+32−3247.2%+9.129.9%354
51.5%
 Booot 4.14.02666+20−2051.4%−9.341.8%765
57.1%
 Glaurung 1.2.1 Crusader 32-bit2663+32−3251.6%−14.528.6%343
49.0%
 Scorpio 2.5 32-bit2663+32−3249.5%+4.342.3%307
55.4%
 Vajolet 2.032661+24−2451.2%−11.933.8%562
51.7%
 Scorpio 1.912660+14−1445.2%+32.136.8%1863
52.6%
 Bobcat 2.75 32-bit2659+24−2447.7%+15.136.9%558
61.5%
 Glaurung 1.2.1 32-bit2655+16−1646.4%+23.433.6%1265
49.4%
 Scorpio 2.02b2655+30−3047.3%+17.237.2%355
56.0%
 Scorpio 2.0 32-bit2652+17−1745.7%+30.533.8%1244
50.5%
 Scorpio 2.1 32-bit2652+34−3449.1%+4.838.2%280
58.2%
18Cyrano 0.6b17 32-bit2648+14−1448.5%+9.340.7%1613
57.4%
 Scorpio 1.812644+36−3648.3%+17.231.7%271
57.4%
 Scorpio 1.82641+20−2047.3%+18.135.7%861
58.3%
19RedQueen 1.0.0 32-bit2637+24−2451.6%−7.535.9%576
52.7%
20DanaSah 7.32636+15−1549.4%+5.234.6%1597
50.4%
 Scorpio 2.05b2636+32−3250.5%−1.940.8%306
53.5%
 Glaurung 1.0.2 32-bit2634+17−1747.4%+20.432.0%1209
60.3%
 Crafty 23.0 32-bit2630+29−2949.9%+1.441.3%380
53.1%
21Delfi 5.12629+25−2646.3%+23.333.9%522
51.4%
22Cheng3 1.07 32-bit2628+26−2646.3%+24.332.1%505
54.4%
 Glaurung 1.1 32-bit2626+33−3348.8%+10.132.1%324
55.1%
23Arasan 13.4 32-bit2623+30−3049.7%+1.134.8%374
57.0%
 Bison 9.62619+23−2351.3%−13.433.9%635
52.4%
24Phalanx XXV2618+15−1549.7%+1.732.6%1457
54.5%
 DanaSah 7.02617+26−2651.3%−10.337.8%479
50.3%
 Arasan 14.1 32-bit2616+33−3349.0%+5.033.3%309
51.9%
25K2 0.912616+16−1650.3%−2.732.9%1390
53.8%
 Bison 9.8 32-bit2614+33−3349.7%+0.132.9%301
51.9%
26Caligula 0.9g2613+28−2756.8%−49.126.5%464
58.9%
 Arasan 13.2 32-bit2608+32−3251.0%−6.038.5%312
56.1%
 DanaSah 6.502605+22−2249.7%+0.736.0%691
52.1%
 Scorpio 1.72604+32−3249.7%−0.238.1%310
53.2%
 DanaSah 6.802602+27−2850.5%−2.440.3%412
56.7%
 Delfi 5.02599+20−2047.5%+15.337.1%805
50.6%
27Sloppy 0.2.2 32-bit2599+14−1448.1%+12.037.8%1775
58.5%
28Nawito 18122596+24−2448.7%+8.933.5%576
55.1%
 Crafty 22.8 32-bit2593+33−3347.9%+12.736.1%305
54.8%
29CuckooChess 1.12 32-bit2591+26−2648.5%+10.630.2%503
57.0%
 Booot 4.13.12587+28−2849.4%+1.739.9%404
52.8%
 RedQueen 1.1.1 32-bit2586+33−3350.6%−0.835.7%308
53.6%
 Nawito 1.1d2584+28−2850.2%−2.936.7%401
51.7%
 K2 0.872583+18−1749.0%+5.834.7%1102
54.7%
 Arasan 13.1 32-bit2581+32−3347.8%+13.936.8%302
49.8%
 Crafty 22.4 32-bit2581+32−3248.2%+10.737.3%308
53.2%
 Cheng3 1.04 32-bit2579+33−3351.0%−7.834.4%302
54.0%
 RedQueen 0.9.8 32-bit2577+22−2249.6%+4.927.7%730
64.6%
 Bobcat 20110414 32-bit2570+32−3249.7%−0.041.5%301
50.9%
 DanaSah 5.072569+17−1749.9%−0.737.2%1191
51.4%
 Scorpio 2.2 32-bit2569+29−2946.4%+24.735.4%407
54.3%
30Brutus 8.05 32-bit2567+17−1749.1%+3.636.8%1142
53.8%
 Arasan 12.3 32-bit2565+24−2446.8%+23.830.0%587
50.1%
 CuckooChess 1.11 32-bit2565+29−2950.4%−2.634.1%384
51.2%
 Cyrano 0.52565+33−3350.7%−4.737.1%302
55.9%
 Bobcat 20110220 32-bit2561+33−3348.3%+10.234.9%301
51.6%
 Cheng3 1.06 32-bit2560+30−3146.7%+20.136.3%347
52.0%
 Cheng3 1.05 32-bit2559+32−3248.0%+14.733.6%324
51.7%
 Arasan 11.7 32-bit2558+32−3249.2%+6.036.0%308
55.3%
 DanaSah 4.882555+22−2250.5%−3.133.9%676
58.5%
 DanaSah 5.002551+29−2948.5%+9.532.2%395
54.3%
 Crafty 21.6 32-bit2549+34−3447.8%+13.030.1%302
62.5%
31Betsabe II 1.842543+15−1548.0%+15.625.8%1689
51.0%
 Crafty 21.5 32-bit2542+32−3248.3%+13.828.5%344
51.8%
 DanaSah 4.662541+26−2648.1%+11.935.2%475
52.2%
 DanaSah 4.602540+25−2548.5%+10.835.1%513
50.4%
32Tucano 1.042540+30−3047.2%+17.636.5%359
54.5%
 Crafty 22.0 32-bit2538+33−3348.5%+9.431.9%304
51.4%
 Phalanx XXIV2537+20−2048.7%+7.427.3%887
52.4%
33Rodent 0.102536+33−3351.0%−9.531.4%303
53.7%
 Caligula 0.82534+20−2049.1%+6.526.3%938
51.9%
 K2 0.832533+27−2751.7%−12.233.3%474
51.3%
 Arasan 11.6 32-bit2532+33−3351.8%−12.332.6%304
52.7%
 Arasan 12.1 32-bit2531+32−3351.4%−12.327.3%326
50.1%
 CuckooChess 1.102531+31−3151.5%−12.034.5%330
52.6%
34Nemeton 1.8 4CPU2529+27−2749.9%+2.127.2%496
55.4%
 DanaSah 4.242527+17−1751.5%−10.736.9%1128
62.9%
 Arasan 10.0 32-bit2520+34−3451.4%−11.030.1%289
53.8%
35EXchess 6.10b 32-bit2518+33−3249.4%+3.832.5%314
52.9%
 Crafty 20.14 32-bit2517+27−2747.4%+19.333.4%482
51.1%
 DanaSah 5.062516+33−3349.7%+0.334.6%309
52.6%
 Brutus 7.02b2515+18−1852.0%−16.335.4%994
53.9%
 DanaSah 4.452513+29−2949.9%+1.638.4%378
60.3%
 Betsabe II 1.752508+22−2251.8%−14.423.3%730
49.6%
 CuckooChess 1.092508+33−3351.6%−12.626.8%317
51.5%
 Crafty 20.13 32-bit2507+33−3347.8%+16.734.1%302
59.1%
 DanaSah 4.372502+33−3349.0%+6.638.2%301
50.2%
36Pawny 0.3.1 32-bit2502+33−3348.9%+7.928.7%310
52.5%
 Arasan 11.3 32-bit2500+33−3448.7%+8.130.9%301
50.2%
 Crafty 20.11 32-bit2500+34−3449.8%+3.330.6%301
52.9%
 Arasan 10.32499+24−2445.5%+32.230.8%614
60.0%
 Cheng3 1.03 32-bit2493+33−3350.0%−0.831.2%308
53.6%
 K2 0.752491+23−2352.4%−18.232.8%634
52.9%
37GreKo 9.2 32-bit2490+33−3349.5%+2.533.2%298
54.1%
 Arasan 11.4 32-bit2487+34−3449.0%+8.428.5%305
50.7%
 GreKo 8.2 32-bit2487+26−2649.1%+5.533.8%506
52.5%
38DoubleCheck 3.1 32-bit2486+34−3451.2%−9.825.0%300
57.0%
 Arasan 10.2 32-bit2482+25−2545.2%+36.527.5%582
50.6%
39Pepito 1.59 32-bit2481+24−2449.6%+1.634.0%583
60.6%
40BBChess 1.3b2477+25−2450.4%−2.238.2%537
59.9%
 BBChess 1.3a2472+25−2551.6%−12.230.5%528
53.6%
 Arasan 10.42471+20−2145.5%+32.330.0%850
70.9%
 Betsabe II 1.662462+22−2246.7%+24.628.4%718
51.2%
41Carballo 1.32462+25−2547.4%+17.731.0%561
51.9%
 Pawny 0.3 32-bit2461+33−3349.2%+3.534.3%303
52.7%
 Nemeton 1.82459+18−1852.3%−18.127.0%1150
58.2%
 Carballo 1.22456+24−2453.8%−24.329.5%600
59.1%
 Nemeton 1.512452+22−2249.8%−0.128.8%732
53.3%
 Arasan 9.52451+36−3647.5%+14.423.8%281
50.5%
 Cyrano 0.32450+34−3449.2%+4.923.8%311
52.0%
 GreKo 8.0 32-bit2449+29−2950.6%−3.529.7%411
59.5%
 Cheng3 1.02b2444+34−3450.5%−6.730.1%302
51.9%
 Betsabe II 1.472443+20−2049.9%+1.825.3%902
55.7%
 K2 0.792440+29−2947.6%+17.531.1%396
49.9%
42Typhoon 1.00-3482440+33−3348.6%+10.929.0%317
51.8%
 Arasan 10.12439+28−2845.5%+38.028.5%480
52.2%
 Nemeton 1.62438+24−2446.1%+27.032.3%594
58.0%
 Critter 0.382434+32−3251.1%−8.933.4%320
49.3%
 Typhoon 1.00-3582434+17−1748.2%+12.231.1%1220
54.1%
43Murka 2 32-bit2433+30−3047.4%+18.126.3%400
58.7%
 DanaSah 3.632428+27−2748.4%+10.532.3%477
49.3%
 GreKo 7.2 32-bit2428+33−3348.4%+10.135.5%304
54.5%
 Arasan 9.22426+34−3446.1%+27.730.9%304
52.2%
 Nemeton 1.612424+28−2847.3%+18.232.3%421
56.8%
 DanaSah 2.852421+33−3349.0%+8.133.8%305
53.8%
44Kiwi 0.6d 32-bit2419+19−1948.3%+9.827.0%975
52.7%
 K2 0.712418+28−2851.4%−9.927.6%439
48.3%
 Nemeton 1.72418+18−1849.6%+1.025.2%1141
61.7%
 Pawny 0.2.2 32-bit2412+34−3448.8%+9.228.6%301
53.0%
 Typhoon 1.00-3142411+34−3450.2%−0.523.0%305
50.7%
45Diablo 0.5.12410+18−1848.7%+8.932.3%1072
59.8%
46RomiChess P3k 32-bit2407+19−1949.2%+5.233.0%906
61.7%
47Amy 0.87b2402+24−2449.4%+7.125.7%610
50.9%
 Cyrano 0.2f2402+32−3248.4%+13.732.9%316
49.1%
 Pawny 0.2.1 32-bit2402+31−3147.1%+20.225.5%373
54.0%
 Pawny 0.2 32-bit2400+29−2949.2%+5.530.8%396
55.5%
48Simplex 0.9.8 32-bit2397+30−3049.0%+5.631.2%359
56.7%
 Phalanx XXII2394+24−2450.1%−1.423.5%595
70.7%
49Thor's Hammer 2.28 32-bit2385+23−2449.0%+7.730.0%624
53.1%
 DoubleCheck 2.5.4 32-bit2383+33−3350.5%−3.628.6%318
52.0%
 RomiChess P3L 32-bit2382+33−3346.3%+28.433.4%314
55.5%
 GreKo 6.302378+33−3348.0%+14.231.6%307
57.2%
 Carballo 1.1.12374+32−3247.5%+19.427.4%340
49.6%
50Ifrit m1.5 32-bit2374+28−2846.6%+24.629.0%445
55.0%
 Typhoon 1.00-2852372+35−3549.5%+2.419.4%304
51.2%
 GreKo 7.02371+28−2846.3%+28.627.8%454
55.5%
 GreKo 6.252368+33−3348.0%+13.231.8%302
57.5%
 GreKo 6.52364+26−2648.9%+7.031.5%495
49.2%
 Phalanx XXIII2364+32−3246.3%+24.124.8%351
68.5%
 K2 0.672355+23−2353.0%−20.329.8%657
48.5%
 Nemeton 1.412355+25−2547.6%+18.733.7%514
52.0%
 Nemeton 1.32354+31−3152.1%−17.333.5%340
60.0%
 GreKo 5.92349+24−2446.2%+29.429.4%613
58.0%
 Ifrit m1.6 32-bit2345+33−3347.1%+17.335.1%308
56.2%
51Xpdnt 0907042341+33−3351.8%−13.429.0%314
62.1%
 Daydreamer 1.52335+22−2252.1%−18.734.3%722
59.7%
 Nemeton 1.12330+29−2947.5%+17.331.3%393
55.8%
52Amundsen 0.802328+17−1749.1%+6.829.2%1269
60.4%
 Simplex 0.9.7 32-bit2323+31−3148.6%+9.825.4%370
69.7%
 GreKo 5.52311+33−3350.7%−5.333.1%305
49.6%
 Nemeton 1.22311+26−2646.5%+22.728.3%508
70.4%
53Natwarlal 0.142303+19−1949.3%+4.825.3%1021
55.4%
 Xpdnt 0809272300+29−2951.2%−8.324.8%428
53.8%
 Brutus 6.12298+34−3447.5%+14.425.2%306
58.4%
 Nemeton 1.02293+30−3052.6%−18.127.4%383
50.1%
 Pawny 0.1.62293+33−3352.1%−15.524.4%328
51.1%
 Natwarlal 0.122292+34−3449.4%+7.826.6%308
70.5%
 Brutus 5.42279+34−3450.7%−4.129.1%302
54.1%
 GreKo 5.2.52277+35−3550.9%−8.727.0%289
79.5%
54Sungorus 1.4 32-bit2260+21−2148.2%+11.926.5%820
59.8%
 Sungorus 1.3 32-bit2255+34−3452.7%−16.824.3%301
55.7%
 Brutus 6.02251+35−3548.8%+5.622.6%301
50.1%
55RattateChess 1.0 Nosferatu2251+19−1950.0%+0.028.3%968
51.8%
 EXchess 5.01b 32-bit2250+29−2946.5%+21.631.2%401
74.5%
56Feuerstein 0.4.6.12238+19−1949.1%+6.428.5%944
53.5%
 Betsabe II 1.08c2237+35−3549.2%+7.621.0%300
71.0%
 Vajolet 1.62.12223+34−3447.7%+12.128.4%310
56.7%
57Bagatur 1.2d 32-bit2219+34−3446.8%+19.627.2%298
51.8%
58Beowulf 2.4a 32-bit2218+20−2053.8%−29.425.4%952
66.8%
59ZCT 0.3.24512210+27−2749.4%+4.425.5%478
52.2%
 Betsabe II 1.09c2209+34−3448.2%+12.119.8%308
57.2%
60Jazz 501 32-bit2205+29−2952.5%−17.928.5%418
57.7%
 RattateChess Bologna 20072201+25−2551.3%−9.525.0%588
61.8%
 Carballo 0.82196+22−2247.2%+19.230.6%706
52.0%
 Jazz 444 32-bit2195+32−3250.3%−3.125.2%353
61.6%
 Amundsen 0.65.12188+34−3448.7%+7.823.9%305
50.8%
 Feuerstein 0.4.5.22187+37−3749.2%+9.224.7%255
54.4%
 K2 0.572185+34−3446.2%+27.325.5%302
61.1%
 RedQueen 0.62178+30−3045.8%+29.419.7%406
55.2%
 Feuerstein 0.4.62175+38−3850.6%−2.218.5%259
52.8%
 Sungorus 1.22173+26−2652.4%−17.628.7%499
55.7%
 Pawny 0.132170+32−3252.2%−17.420.1%363
53.5%
 Simplex 0.9.3 32-bit2168+34−3449.5%+3.925.7%303
63.5%
 Betsabe II 1.052159+34−3445.2%+33.724.2%314
54.0%
61OliThink 5.1.92157+30−3046.6%+27.721.3%417
51.1%
 Bagatur 1.2b 32-bit2156+33−3446.2%+28.829.1%306
50.4%
62Chesley r323 32-bit2156+24−2549.0%+8.221.0%625
65.1%
 Ifrit j4.32149+28−2845.6%+30.629.4%428
66.5%
 K2 0.43f2140+33−3348.2%+11.221.3%338
53.6%
63Prophet 2.0 32-bit2138+19−1949.3%+4.324.0%1025
54.8%
64Parrot 07.01.162136+31−3146.6%+25.421.1%394
49.3%
 Parrot 07.07.222136+19−1947.3%+19.723.0%1047
73.8%
 Ifrit j4.22123+34−3445.5%+31.526.4%303
67.4%
65ChessKISS 1.3a 32-bit2112+32−3347.0%+19.030.3%320
53.9%
 DoubleCheck 2.1 32-bit2110+33−3348.1%+12.421.9%342
74.1%
 Carballo 0.52097+23−2347.1%+19.921.9%694
77.8%
 Ifrit j2.92081+34−3448.2%+11.421.3%314
50.9%
66AdroitChess 0.42080+24−2458.7%−77.514.5%752
50.9%
 Feuerstein 0.4.5.12080+38−3848.0%+12.325.8%248
88.5%
 ZCT 0.3.25002049+32−3246.2%+29.916.8%381
53.8%
67PLP 16615712047+22−2246.1%+28.224.3%760
57.7%
68Jabba 1.0 32-bit2044+21−2144.8%+38.825.0%839
86.0%
69Faile 1.4.42027+23−2355.2%−28.222.1%774
53.2%
70Slibo 0.5.12025+26−2645.5%+34.119.4%573
91.3%
71BibiChess 0.52001+24−2545.7%+31.426.5%607
60.9%
72Cupcake 1.01995+31−3145.5%+31.622.7%401
55.0%
73Schola 1.1.0 32-bit1993+26−2645.6%+32.025.1%514
68.1%
 AdroitChess 0.31984+25−2544.2%+46.118.5%626
85.1%
74Dabbaba 5.671965+25−2545.5%+33.826.4%557
65.9%
75Sissa 2.01958+23−2353.1%−22.830.1%678
55.3%
76Monik 2.2.3 32-bit1955+30−3044.4%+39.527.1%395
51.6%
 Feuerstein 0.4.4.21954+28−2941.2%+92.318.7%518
52.5%
77Wowl 1.3.81953+26−2745.4%+35.513.3%573
54.4%
78Smash 1.0.31951+26−2640.8%+74.217.8%574
69.0%
79Micro-Max 4.8 (DM-PII)1943+20−2048.3%+12.326.1%865
57.5%
 Dabbaba 6.521940+22−2248.6%+11.120.3%777
64.1%
80Eia 0.31934+20−2047.1%+22.924.4%914
71.3%
 Wowl 1.3.71925+25−2546.8%+24.911.7%630
76.5%
 Carballo 0.41910+32−3335.8%+103.434.8%342
54.5%
 Dabbaba 7.491908+12−1247.8%+16.719.9%3152
52.7%
 Jabba 130320121906+31−3139.1%+98.116.7%442
59.4%
81ChessterfieldCL i5a1902+24−2440.6%+73.720.4%658
68.7%
 Micro-Max 4.81892+28−2836.7%+103.124.7%493
77.5%
82CDrill 1800 build 41878+23−2441.4%+73.115.5%741
100.0%
83RataAeroespacial 0.2.11816+13−1342.5%+63.812.9%2478
100.0%
84TSCP 1.811693+20−2047.4%+21.417.0%1072
83.7%
85Spartan 1.01676+25−2563.5%−103.721.2%624
67.4%
86Philemon C1668+25−2562.3%−95.122.0%626
59.4%
87VanillaChess 2.6g1664+25−2561.5%−89.620.2%624
100.0%
88PolarChess 1.31575+25−2549.3%+3.616.9%629
56.0%
89Darky 0.5d1572+24−2443.6%+55.420.9%675
98.7%
90MSCP 1.6h1531+25−2544.0%+50.015.1%628
99.8%
91Apep 1.011480+25−2541.2%+72.310.1%683
100.0%
92BACE 0.461379+23−2421.5%+256.99.8%1027
 

Results matrix

Open source 32-bit engines (best versions only), top 12
#NameElo123456789101112
1ChessBrainVB 3.72 4CPU3179            
2Stockfish 2.2.2 32-bit3050  26 − 28
+8−10=36
−38
19 − 13
+11−5=16
−13
  33 − 5
+28−0=10
+70
    2.5 − 1.5
+1−0=3
−249
3IvanHoe 9.46h 32-bit3023 28 − 26
+10−8=36
+38
 21 − 10
+11−0=20
+54
20 − 10
+12−2=16
+21
 28.5 − 5.5
+23−0=11
+59
     
4Gull II b2 32-bit2982 13 − 19
+5−11=16
+13
10 − 21
+0−11=20
−54
         
5Protector 1.5.0 32-bit2947  10 − 20
+2−12=16
−21
         
6Toga II 3.0 4CPU2919      1.5 − 0.5
+1−0=1
+66
     
7Booot 5.1.02843 5 − 33
+0−28=10
−70
5.5 − 28.5
+0−23=11
−59
  0.5 − 1.5
+0−1=1
−66
 3.5 − 6.5
+1−4=5
−101
 6 − 0
+6−0=0
+INF
13.5 − 9.5
+9−5=9
−44
7 − 3
+5−1=4
+17
8MinkoChess 1.3 32-bit2829      6.5 − 3.5
+4−1=5
+101
  7.5 − 2.5
+6−1=3
+106
  
9Glaurung 2.1 32-bit2765            
10Texel 1.01 32-bit2765      0 − 6
+0−6=0
−INF
2.5 − 7.5
+1−6=3
−106
    
11Scorpio 2.7 32-bit2749      9.5 − 13.5
+5−9=9
+44
    29.5 − 22.5
+20−13=19
+29
12Crafty 23.4 32-bit2733 1.5 − 2.5
+0−1=3
+249
    3 − 7
+1−5=4
−17
   22.5 − 29.5
+13−20=19
−29
 
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
1ChessBrainVB 3.72 4CPU3179 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish 2.2.2 32-bit30500.0 99.8100.0100.0100.0100.0100.0100.0100.0100.0100.0
3IvanHoe 9.46h 32-bit30230.00.2 100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Gull II b2 32-bit29820.00.00.0 98.7100.0100.0100.0100.0100.0100.0100.0
5Protector 1.5.0 32-bit29470.00.00.01.3 94.8100.0100.0100.0100.0100.0100.0
6Toga II 3.0 4CPU29190.00.00.00.05.2 100.0100.0100.0100.0100.0100.0
7Booot 5.1.028430.00.00.00.00.00.0 80.6100.0100.0100.0100.0
8MinkoChess 1.3 32-bit28290.00.00.00.00.00.019.4 100.099.9100.0100.0
9Glaurung 2.1 32-bit27650.00.00.00.00.00.00.00.0 50.687.399.1
10Texel 1.01 32-bit27650.00.00.00.00.00.00.00.149.4 81.296.8
11Scorpio 2.7 32-bit27490.00.00.00.00.00.00.00.012.718.8 88.7
12Crafty 23.4 32-bit27330.00.00.00.00.00.00.00.00.93.211.3 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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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 May 18, 2019