CCRL 40/40
Downloads and Statistics
March 16, 2019
Testing summary:
Total: 1'004'662 games
played by 2'384 programs
138170 CPU days (X2 4600+)

White wins: 348'320 (34.7%)
Black wins: 258'847 (25.8%)
Draws: 397'495 (39.6%)
White score: 54.5%

Open source 32-bit 1-2-CPU engines

Comparing 322 engines!
85 best versions of selected engines played 2914 games with each other

CCRL 40/40 Rating List — Open source 32-bit 1-2-CPU 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 March 16, 2019 with Bayeselo based on 1'004'662 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 3.723062+17−1751.9%−13.743.0%1140 
84.8%
2Stockfish 2.2.2 32-bit3051+14−1461.8%−77.248.3%1599
57.0%
 Sting SF 4.63048+30−3045.4%+28.447.0%334
56.9%
 ChessBrainVB 3.703044+23−2351.1%−9.848.1%551
62.2%
 Stockfish 2.3.1 32-bit3040+17−1757.2%−45.150.5%1095
62.3%
 ChessBrainVB 3.663035+23−2351.5%−9.851.2%568
66.6%
 Sting SF 4.73028+22−2244.5%+33.150.5%632
51.8%
 Stockfish 2.1.1 32-bit3028+16−1663.8%−92.743.0%1362
56.6%
 ChessBrainVB 3.683025+21−2150.1%−0.854.3%654
56.2%
3IvanHoe 9.46h 32-bit3023+14−1455.8%−37.053.6%1668
81.4%
 Stockfish 2.0.1 32-bit3013+17−1766.9%−109.446.2%1074
80.2%
 Sting SF 2 32-bit3003+17−1751.3%−9.751.2%1062
57.3%
 Stockfish 1.9.1 32-bit3001+17−1767.0%−109.946.2%1138
79.9%
 ChessBrainVB 3.612987+27−2749.3%+4.247.7%421
49.5%
 Stockfish 1.8 32-bit2987+18−1867.5%−110.047.5%1020
65.8%
4Gull II b2 32-bit2982+18−1846.8%+19.052.6%960
57.2%
 ChessBrainVB 3.502979+23−2352.4%−15.546.7%553
52.7%
 Gull II 32-bit2978+18−1846.0%+22.657.1%854
59.8%
 Stockfish 1.7.1 32-bit2975+17−1766.8%−110.445.5%1170
95.7%
5Protector 1.5.0 32-bit2948+25−2544.7%+31.752.2%458
84.2%
 Stockfish 1.6.3 32-bit2933+17−1761.1%−71.148.2%1104
87.2%
 ChessBrainVB 3.312915+26−2653.8%−22.445.3%455
97.5%
 Gull 1.0a 32-bit2886+12−1245.1%+33.444.2%2162
81.2%
 Protector 1.4.0 32-bit2878+11−1145.1%+33.240.9%2698
55.5%
 Gull 1.1 32-bit2877+17−1747.4%+16.048.9%1051
55.2%
 Gull 1.2 32-bit2875+12−1245.2%+33.042.7%2274
56.0%
 ChessBrainVB 3.202873+25−2550.3%−2.347.4%489
62.0%
 Gull 0.12a 32-bit2868+21−2149.6%+2.544.3%697
60.8%
 Stockfish 1.5.1 32-bit2865+15−1555.4%−35.443.1%1486
90.6%
6Toga II 3.02850+16−1648.1%+11.242.9%1311
59.4%
 Gull 0.11a 32-bit2847+21−2146.8%+17.846.8%722
61.7%
7Booot 5.1.02844+10−1045.2%+32.341.5%3280
94.0%
 Protector 1.3.5 32-bit2830+15−1545.2%+30.146.1%1473
49.2%
 Stockfish 1.4 32-bit2830+17−1653.8%−25.048.7%1130
51.8%
8MinkoChess 1.3 32-bit2829+31−3146.0%+25.445.5%314
54.7%
 Cyclone xTreme Fury2827+19−1948.1%+10.848.8%811
53.4%
 Grapefruit 1.0 32-bit2826+9−948.4%+10.447.7%3991
47.4%
 Toga II 1.4.1SE2826+12−1250.0%+2.543.5%2395
55.5%
 Booot 5.02825+16−1645.0%+30.243.5%1336
51.4%
 Protector 1.3.4 32-bit2825+16−1645.0%+32.246.6%1322
54.5%
 Cyclone xTreme2824+13−1344.2%+37.545.8%2009
55.6%
 ChessBrainVB 3.032822+25−2549.9%−2.440.8%512
47.9%
 Cyclone 3.42822+21−2151.5%−8.247.2%685
54.6%
 Cyclone xTreme Rage2821+25−2548.4%+8.946.8%476
49.3%
 Toga II 1.4.1SE62821+23−2350.4%+0.145.1%567
58.2%
 Toga II 3.1.2SE2818+18−1753.5%−23.743.7%1019
56.3%
 Cyclone 2.22815+28−2849.1%+5.647.4%382
69.6%
 TheMadPrune 1.1.252805+24−2451.4%−9.648.0%504
53.3%
 Toga II 1.4 beta5c2804+24−2453.3%−21.746.1%542
55.3%
 Protector 1.3.1b 32-bit2802+23−2348.8%+8.443.6%608
67.1%
 Protector 1.3.2 32-bit2795+21−2245.2%+28.050.5%651
52.9%
 Stockfish 1.3.1 32-bit2793+25−2546.1%+25.441.4%512
61.4%
 Toga II 1.3.12789+11−1150.0%−0.742.1%2565
64.5%
 Grapefruit 1.0a32783+32−3247.7%+14.442.4%309
51.3%
 MinkoChess 1.2 32-bit2782+14−1445.6%+30.640.7%1765
53.0%
 Cyclone 1.02781+32−3251.0%−7.539.3%300
52.1%
 Stockfish 1.2 Default2780+22−2245.6%+26.644.4%667
76.3%
 Toga II 1.3.42767+28−2852.9%−18.442.1%411
54.4%
 Glaurung 2.1 32-bit2765+18−1845.7%+28.439.6%1044
51.3%
9Texel 1.01 32-bit2765+28−2852.2%−19.035.0%432
63.1%
 Toga II 1.2.1a 32-bit2759+12−1250.5%−6.339.2%2354
63.4%
 Glaurung 2.2 32-bit2755+24−2445.6%+27.041.1%555
51.8%
 Stockfish 1.012754+32−3252.5%−19.845.4%302
58.8%
10Scorpio 2.7 32-bit2749+20−2049.0%+9.236.2%826
61.4%
 MinkoChess 1.0 32-bit2744+32−3249.4%+4.140.9%308
56.1%
 MinkoChess 1.1 32-bit2741+27−2745.7%+25.840.9%455
56.0%
 Glaurung 2.0.1 32-bit2738+17−1747.2%+16.940.6%1196
58.3%
 Toga II 1.2 32-bit2735+25−2552.4%−18.937.2%511
54.9%
11Crafty 23.4 32-bit2733+19−1950.8%−5.640.4%861
54.9%
 Toga II 1.1a 32-bit2731+16−1653.6%−24.038.6%1227
62.0%
12Bison 9.11 32-bit2728+14−1448.5%+9.837.2%1810
77.9%
 Crafty 23.3 32-bit2714+32−3250.2%−2.341.3%305
64.2%
 Booot 4.15.12706+32−3245.4%+28.244.6%307
49.6%
13Critter 0.42 32-bit2706+25−2551.9%−12.741.1%494
68.9%
 Crafty 23.2 32-bit2696+32−3247.8%+15.840.0%320
49.2%
 Glaurung 2 epsilon/5 32-bit2696+27−2748.1%+11.235.8%441
50.6%
 Scorpio 2.6 32-bit2696+32−3249.5%+3.943.2%301
52.5%
 Fruit 2.12695+25−2551.5%−14.137.2%522
54.4%
 Booot 4.15.02693+14−1445.7%+28.445.4%1619
53.3%
14Vajolet 2.482692+31−3148.9%+5.033.9%348
61.8%
 Crafty 23.1 32-bit2686+18−1845.9%+26.742.0%958
52.7%
15Bobcat 3.25 32-bit2685+31−3146.9%+22.432.2%351
67.3%
 MinkoChess 0.8 32-bit2675+33−3351.3%−13.541.5%301
60.2%
 ChessBrainVB 2.052669+23−2349.6%+1.736.1%609
52.9%
16Daydreamer 1.75 32-bit2668+17−1747.7%+14.441.2%1157
50.2%
 Glaurung 1.2.1 Avalanche 32-bit2668+32−3252.1%−16.535.4%328
49.4%
 Scorpio 1.92668+31−3150.1%−3.434.0%362
52.2%
 Scorpio 1.842667+32−3247.2%+9.129.9%354
51.5%
 Booot 4.14.02666+20−2051.4%−9.341.8%765
54.9%
 Scorpio 2.5 32-bit2664+32−3249.5%+3.942.3%307
51.8%
 Glaurung 1.2.1 Crusader 32-bit2663+32−3251.6%−14.428.6%343
54.8%
 Scorpio 1.912661+14−1445.2%+32.036.9%1841
50.6%
 Vajolet 2.032661+24−2451.2%−11.833.8%562
52.8%
 Bobcat 2.75 32-bit2659+24−2447.7%+15.436.9%558
62.1%
 Glaurung 1.2.1 32-bit2655+17−1746.4%+23.533.6%1265
49.1%
 Scorpio 2.02b2655+30−3047.3%+17.437.2%355
55.9%
 Scorpio 2.0 32-bit2653+17−1745.5%+31.334.0%1214
50.6%
 Scorpio 2.1 32-bit2652+34−3449.1%+4.938.2%280
58.1%
17Cyrano 0.6b17 32-bit2649+14−1448.5%+8.640.7%1613
49.4%
 Nawito 18122649+86−8554.5%−38.531.8%44
53.8%
 Scorpio 1.812645+36−3648.3%+16.331.7%271
57.5%
 Scorpio 1.82641+20−2047.3%+18.135.7%861
51.8%
18DanaSah 7.32640+15−1549.9%+1.134.1%1476
57.0%
19RedQueen 1.0.0 32-bit2638+24−2451.6%−8.335.9%576
52.1%
 Scorpio 2.05b2636+32−3250.5%−1.740.8%306
54.1%
 Glaurung 1.0.2 32-bit2635+17−1747.4%+19.532.0%1209
59.6%
 Crafty 23.0 32-bit2630+29−2949.9%+1.741.3%380
53.9%
20Delfi 5.12629+25−2546.3%+23.233.9%522
50.6%
21Cheng3 1.07 32-bit2628+26−2646.3%+24.732.1%505
54.7%
 Glaurung 1.1 32-bit2626+33−3348.8%+10.332.1%324
54.9%
22Arasan 13.4 32-bit2623+30−3049.7%+1.434.8%374
56.8%
 Bison 9.62620+23−2351.3%−14.133.9%635
51.8%
23‑24K2 0.912619+17−1750.7%−5.231.6%1150
50.2%
23‑24Phalanx XXV2619+16−1549.8%+0.732.3%1431
54.8%
 Arasan 14.1 32-bit2617+33−3349.0%+4.233.3%309
49.7%
 DanaSah 7.02617+26−2651.3%−10.137.8%479
55.0%
 Bison 9.8 32-bit2614+33−3349.7%+0.232.9%301
59.9%
 Arasan 13.2 32-bit2608+32−3251.0%−5.638.5%312
55.3%
 DanaSah 6.502606+22−2249.7%+0.536.0%691
53.4%
 Scorpio 1.72604+32−3249.7%−0.138.1%310
52.4%
 DanaSah 6.802603+28−2850.5%−2.840.3%412
57.8%
 Delfi 5.02599+20−2047.5%+15.437.1%805
49.7%
25Sloppy 0.2.2 32-bit2599+14−1448.1%+12.437.8%1775
62.4%
 Crafty 22.8 32-bit2594+33−3347.9%+11.936.1%305
54.9%
26CuckooChess 1.12 32-bit2591+26−2648.5%+10.830.2%503
57.5%
 Booot 4.13.12587+28−2849.4%+1.839.9%404
52.3%
 RedQueen 1.1.1 32-bit2586+33−3250.6%−0.435.7%308
51.0%
27Nawito 1.1d2585+29−2951.2%−8.236.7%381
54.3%
 K2 0.872584+17−1849.0%+5.534.7%1102
55.4%
 Arasan 13.1 32-bit2581+33−3347.8%+14.336.8%302
49.5%
 Crafty 22.4 32-bit2581+32−3248.2%+11.237.3%308
53.4%
 Cheng3 1.04 32-bit2579+33−3351.0%−7.534.4%302
53.9%
 RedQueen 0.9.8 32-bit2577+22−2249.6%+5.427.7%730
64.7%
 Bobcat 20110414 32-bit2570+32−3249.7%+0.441.5%301
50.2%
 DanaSah 5.072570+17−1749.9%−1.037.2%1191
51.8%
 Scorpio 2.2 32-bit2569+29−2946.4%+25.335.4%407
54.5%
28Brutus 8.05 32-bit2567+17−1749.1%+4.136.8%1142
54.0%
 Arasan 12.3 32-bit2566+24−2446.8%+23.130.0%587
49.9%
 CuckooChess 1.11 32-bit2566+29−2950.4%−3.234.1%384
51.0%
 Cyrano 0.52565+32−3350.7%−4.037.1%302
56.0%
 Bobcat 20110220 32-bit2562+33−3348.3%+9.734.9%301
52.0%
 Cheng3 1.06 32-bit2560+30−3146.7%+20.436.3%347
53.2%
 Arasan 11.7 32-bit2559+32−3249.2%+5.636.0%308
48.6%
 Cheng3 1.05 32-bit2559+32−3248.0%+15.033.6%324
57.2%
 DanaSah 4.882556+22−2250.5%−3.733.9%676
58.4%
 DanaSah 5.002552+29−2948.5%+8.932.2%395
54.6%
 Crafty 21.6 32-bit2549+34−3447.8%+13.330.1%302
62.3%
29Betsabe II 1.842543+15−1548.0%+15.325.9%1555
51.4%
 Crafty 21.5 32-bit2543+32−3248.3%+13.028.5%344
51.2%
 DanaSah 4.662542+26−2648.1%+11.435.2%475
52.0%
 DanaSah 4.602541+25−2548.5%+10.435.1%513
53.4%
30‑31Caligula 0.82540+20−2049.8%+1.325.9%874
47.9%
30‑31Tucano 1.042540+30−3047.2%+18.036.5%359
54.5%
 Crafty 22.0 32-bit2538+33−3348.5%+9.731.9%304
50.7%
 Phalanx XXIV2538+20−2048.7%+7.027.3%887
53.0%
32Rodent 0.102536+33−3351.0%−9.231.4%303
54.3%
 K2 0.832534+27−2751.7%−12.633.3%474
51.4%
 Arasan 11.6 32-bit2533+33−3351.8%−12.832.6%304
52.9%
 Arasan 12.1 32-bit2531+33−3351.4%−11.927.3%326
50.1%
 CuckooChess 1.102531+31−3151.5%−11.734.5%330
57.3%
 DanaSah 4.242528+17−1751.5%−10.936.9%1128
63.7%
 Arasan 10.0 32-bit2521+34−3451.4%−11.430.1%289
53.7%
33EXchess 6.10b 32-bit2519+32−3249.4%+3.232.5%314
53.5%
 Crafty 20.14 32-bit2517+27−2747.4%+19.433.4%482
50.2%
 DanaSah 5.062517+33−3349.7%+0.034.6%309
52.6%
 Brutus 7.02b2515+18−1952.0%−15.535.4%994
54.1%
 DanaSah 4.452514+29−2949.9%+1.138.4%378
58.4%
 CuckooChess 1.092509+33−3351.6%−13.126.8%317
51.3%
 Betsabe II 1.752508+22−2251.8%−14.323.3%730
50.9%
 Crafty 20.13 32-bit2508+33−3347.8%+16.134.1%302
58.7%
 DanaSah 4.372502+33−3349.0%+7.238.2%301
50.3%
34Pawny 0.3.1 32-bit2502+33−3348.9%+8.328.7%310
52.6%
 Arasan 11.3 32-bit2501+33−3348.7%+7.630.9%301
50.8%
 Crafty 20.11 32-bit2500+34−3449.8%+3.430.6%301
52.9%
 Arasan 10.32499+24−2445.5%+32.230.8%614
59.5%
 Cheng3 1.03 32-bit2494+33−3350.0%−1.431.2%308
53.7%
 K2 0.752492+23−2352.4%−18.932.8%634
52.6%
35GreKo 9.2 32-bit2490+33−3349.5%+2.933.2%298
53.8%
 Arasan 11.4 32-bit2488+34−3449.0%+8.228.5%305
51.2%
 GreKo 8.2 32-bit2487+26−2549.1%+6.033.8%506
52.5%
36DoubleCheck 3.1 32-bit2486+34−3451.2%−9.425.0%300
57.1%
 Arasan 10.2 32-bit2482+25−2545.2%+36.827.5%582
50.0%
37Pepito 1.59 32-bit2482+24−2449.6%+1.434.0%583
60.4%
38BBChess 1.3b2478+25−2450.4%−2.538.2%537
59.9%
 BBChess 1.3a2473+25−2551.6%−12.430.5%528
51.5%
 Arasan 10.42472+20−2145.5%+32.830.0%846
74.2%
 Betsabe II 1.662462+22−2246.7%+24.628.4%718
50.3%
39Carballo 1.32462+24−2547.4%+18.131.0%561
51.9%
 Pawny 0.3 32-bit2461+33−3349.2%+3.934.3%303
54.5%
40Nemeton 1.82459+19−1952.5%−19.926.8%1030
59.7%
 Carballo 1.22455+24−2453.7%−24.429.8%590
56.1%
 Nemeton 1.512453+22−2249.8%−0.928.8%732
53.3%
 Arasan 9.52451+36−3647.5%+14.723.8%281
50.1%
 Cyrano 0.32451+34−3449.2%+4.123.8%311
51.7%
 GreKo 8.0 32-bit2450+29−2950.6%−4.029.7%411
59.8%
 Cheng3 1.02b2444+34−3450.5%−6.430.1%302
51.6%
 Betsabe II 1.472443+20−2049.9%+2.325.3%902
55.2%
 K2 0.792441+29−2947.6%+17.131.1%396
50.1%
41Typhoon 1.00-3482441+33−3348.6%+10.529.0%317
52.8%
 Arasan 10.12439+28−2845.5%+38.028.5%480
52.3%
 Nemeton 1.62438+24−2445.8%+29.132.5%588
56.3%
 Critter 0.382435+32−3251.1%−8.933.4%320
49.7%
 Typhoon 1.00-3582435+17−1748.2%+11.931.1%1220
54.7%
42Murka 2 32-bit2433+30−3047.4%+18.526.3%400
56.8%
 GreKo 7.2 32-bit2429+33−3348.4%+9.935.5%304
51.4%
 DanaSah 3.632428+27−2748.4%+10.932.3%477
54.3%
 Arasan 9.22426+33−3446.1%+27.930.9%304
52.1%
 Nemeton 1.612425+28−2847.3%+17.732.3%421
57.4%
 DanaSah 2.852421+33−3349.0%+8.233.8%305
50.4%
43Kiwi 0.6d 32-bit2421+19−1948.3%+9.126.8%969
55.1%
 Nemeton 1.72419+18−1849.6%+0.525.2%1141
51.6%
 K2 0.712418+28−2851.4%−9.627.6%439
59.1%
 Pawny 0.2.2 32-bit2413+34−3448.8%+8.628.6%301
54.4%
44Diablo 0.5.12411+18−1848.7%+8.332.3%1072
50.1%
 Typhoon 1.00-3142411+34−3450.2%−0.423.0%305
56.4%
45RomiChess P3k 32-bit2407+19−1949.2%+5.833.0%906
57.3%
 Cyrano 0.2f2404+33−3348.7%+11.733.1%314
52.2%
46Amy 0.87b2403+24−2449.4%+6.725.7%610
49.8%
 Pawny 0.2.1 32-bit2403+31−3147.1%+19.825.5%373
54.1%
 Pawny 0.2 32-bit2401+29−2949.2%+5.030.8%396
55.6%
47Simplex 0.9.8 32-bit2398+30−3049.0%+4.931.2%359
56.8%
 Phalanx XXII2394+25−2450.1%−0.923.5%595
73.1%
48Thor's Hammer 2.28 32-bit2384+24−2448.7%+9.730.1%618
50.5%
 DoubleCheck 2.5.4 32-bit2383+33−3350.5%−3.128.6%318
52.0%
 RomiChess P3L 32-bit2382+33−3346.3%+28.833.4%314
55.7%
 GreKo 6.302379+33−3348.0%+13.531.6%307
56.8%
 Carballo 1.1.12375+32−3247.5%+18.927.4%340
49.8%
49Ifrit m1.5 32-bit2375+28−2846.6%+24.029.0%445
56.1%
 GreKo 7.02372+28−2846.3%+28.527.8%454
49.9%
 Typhoon 1.00-2852372+35−3549.5%+2.719.4%304
56.0%
 GreKo 6.252368+33−3348.0%+13.531.8%302
56.1%
 Phalanx XXIII2365+32−3246.3%+23.324.8%351
50.4%
 GreKo 6.52364+26−2648.9%+7.731.5%495
67.7%
 Nemeton 1.412356+25−2647.6%+18.233.7%514
51.0%
 K2 0.672355+23−2353.0%−19.729.8%657
51.4%
 Nemeton 1.32355+31−3152.1%−18.033.5%340
59.5%
 GreKo 5.92350+24−2446.2%+29.129.4%613
58.0%
 Ifrit m1.6 32-bit2345+33−3347.1%+17.835.1%308
56.8%
50Xpdnt 0907042341+33−3351.8%−13.229.0%314
61.8%
 Daydreamer 1.52335+22−2252.1%−18.434.3%722
59.6%
 Nemeton 1.12331+29−2947.5%+16.531.3%393
55.9%
51Amundsen 0.802328+17−1749.1%+7.029.2%1269
60.2%
 Simplex 0.9.7 32-bit2324+31−3148.6%+9.225.4%370
69.6%
 GreKo 5.52312+33−3350.7%−5.933.1%305
49.7%
 Nemeton 1.22312+26−2646.5%+22.128.3%508
71.0%
52Natwarlal 0.142303+19−1949.3%+4.825.3%1021
55.1%
 Xpdnt 0809272300+29−2951.2%−8.024.8%428
53.6%
 Brutus 6.12298+34−3447.5%+14.725.2%306
58.1%
 Nemeton 1.02294+30−3052.6%−18.527.4%383
51.7%
 Natwarlal 0.122293+34−3449.4%+7.126.6%308
48.7%
 Pawny 0.1.62293+33−3352.1%−15.124.4%328
71.3%
 Brutus 5.42280+34−3450.7%−4.629.1%302
54.2%
 GreKo 5.2.52277+35−3550.9%−8.327.0%289
79.5%
53Sungorus 1.4 32-bit2260+21−2148.2%+12.326.5%820
60.1%
 Sungorus 1.3 32-bit2255+34−3452.7%−16.624.3%301
55.5%
 Brutus 6.02251+35−3548.8%+5.722.6%301
51.2%
54RattateChess 1.0 Nosferatu2251+19−1949.9%+0.128.3%964
50.5%
 EXchess 5.01b 32-bit2250+29−2946.5%+21.831.2%401
74.7%
55Feuerstein 0.4.6.12239+19−1949.1%+5.528.5%944
53.3%
 Betsabe II 1.08c2237+35−3549.2%+8.021.0%300
70.6%
 Vajolet 1.62.12223+34−3447.7%+12.728.4%310
57.2%
56Bagatur 1.2d 32-bit2219+34−3446.8%+20.027.2%298
52.3%
57Beowulf 2.4a 32-bit2218+20−1953.8%−29.425.4%952
66.5%
58ZCT 0.3.24512210+27−2749.4%+4.525.5%478
52.0%
 Betsabe II 1.09c2209+34−3548.2%+12.419.8%308
57.2%
59Jazz 501 32-bit2205+29−2952.5%−17.728.5%418
58.1%
 RattateChess Bologna 20072201+25−2551.3%−9.425.0%588
60.3%
 Carballo 0.82197+22−2247.2%+18.930.6%706
53.0%
 Jazz 444 32-bit2195+32−3250.3%−2.925.2%353
61.7%
 Amundsen 0.65.12188+34−3448.7%+8.023.9%305
50.8%
 Feuerstein 0.4.5.22188+37−3749.2%+8.524.7%255
53.7%
 K2 0.572185+34−3446.2%+27.925.5%302
62.2%
 RedQueen 0.62178+30−3045.8%+29.319.7%406
55.3%
 Feuerstein 0.4.62175+38−3850.6%−2.518.5%259
52.3%
 Sungorus 1.22173+26−2652.4%−17.628.7%499
56.0%
 Pawny 0.132170+32−3252.2%−17.520.1%363
52.8%
 Simplex 0.9.3 32-bit2168+34−3449.5%+4.225.7%303
63.9%
 Betsabe II 1.052159+34−3445.2%+33.924.2%314
54.5%
 Bagatur 1.2b 32-bit2157+33−3446.2%+28.129.1%306
49.4%
60OliThink 5.1.92157+30−3046.6%+27.721.3%417
51.5%
61Chesley r323 32-bit2156+24−2449.0%+8.321.0%625
65.0%
 Ifrit j4.32149+28−2845.6%+30.729.4%428
66.1%
 K2 0.43f2140+33−3348.2%+11.621.3%338
54.3%
62Prophet 2.0 32-bit2138+19−1949.3%+4.424.0%1025
54.3%
63Parrot 07.01.162136+31−3146.6%+25.521.1%394
49.5%
 Parrot 07.07.222136+19−1947.3%+19.923.0%1047
73.9%
 Ifrit j4.22123+34−3445.5%+31.626.4%303
67.4%
64ChessKISS 1.3a 32-bit2112+32−3347.0%+19.230.3%320
53.9%
 DoubleCheck 2.1 32-bit2110+33−3348.1%+12.621.9%342
74.2%
 Carballo 0.52097+23−2347.1%+20.021.9%694
77.5%
 Ifrit j2.92081+34−3448.2%+11.721.3%314
51.4%
65AdroitChess 0.42080+24−2458.7%−77.014.5%752
50.8%
 Feuerstein 0.4.5.12080+38−3848.0%+12.425.8%248
88.4%
 ZCT 0.3.25002049+32−3246.2%+30.016.8%381
53.8%
66PLP 16615712047+22−2246.1%+28.324.3%760
58.3%
67Jabba 1.0 32-bit2044+21−2144.8%+38.625.0%839
85.1%
68Faile 1.4.42027+23−2356.3%−41.722.5%760
53.8%
69Slibo 0.5.12026+26−2645.5%+33.219.4%573
91.3%
70BibiChess 0.52001+24−2445.7%+31.526.5%607
60.5%
71Cupcake 1.01995+31−3145.5%+31.922.7%401
55.6%
72Schola 1.1.0 32-bit1993+26−2645.6%+32.025.1%514
67.4%
 AdroitChess 0.31984+25−2544.2%+46.418.5%626
84.3%
73Dabbaba 5.671966+25−2545.5%+33.626.4%557
69.8%
74Monik 2.2.3 32-bit1956+30−3044.4%+39.027.1%395
51.3%
75‑76Sissa 2.01955+29−2953.2%−22.828.1%442
49.8%
75‑76Wowl 1.3.81955+34−3542.4%+60.513.8%341
51.8%
 Feuerstein 0.4.4.21954+28−2941.2%+91.918.7%518
56.8%
77Smash 1.0.31951+26−2640.8%+74.017.8%574
70.9%
 Dabbaba 6.521941+22−2248.6%+11.020.3%777
54.8%
78Micro-Max 4.8 (DM-PII)1939+22−2248.4%+12.425.4%733
70.3%
79Eia 0.31930+21−2146.1%+30.324.6%842
60.6%
 Wowl 1.3.71926+25−2546.8%+24.811.7%630
55.4%
80ChessterfieldCL i5a1923+28−2940.7%+72.419.2%489
73.1%
 Dabbaba 7.491914+12−1249.2%+5.719.8%2841
57.9%
 Carballo 0.41910+32−3335.8%+103.734.8%342
54.5%
 Jabba 130320121907+31−3139.1%+97.916.7%442
76.0%
 Micro-Max 4.81892+28−2836.7%+103.324.7%493
76.4%
81CDrill 1800 build 41878+26−2740.6%+81.215.5%581
100.0%
82RataAeroespacial 0.2.11815+14−1442.8%+62.712.7%2306
100.0%
83TSCP 1.811690+20−2047.5%+20.417.1%1039
100.0%
84Darky 0.5d1572+25−2541.4%+72.821.0%615
100.0%
85BACE 0.461374+27−2816.6%+303.910.5%828
 

Results matrix

Open source 32-bit 1-2-CPU engines (best versions only), top 12
#NameElo123456789101112
1ChessBrainVB 3.723062  7.5 − 8.5
+4−5=7
−56
         
2Stockfish 2.2.2 32-bit3051  26 − 28
+8−10=36
−39
19 − 13
+11−5=16
−14
  33 − 5
+28−0=10
+70
   2.5 − 1.5
+1−0=3
−250
 
3IvanHoe 9.46h 32-bit30238.5 − 7.5
+5−4=7
+56
28 − 26
+10−8=36
+39
 21 − 10
+11−0=20
+54
20 − 10
+12−2=16
+22
 28.5 − 5.5
+23−0=11
+60
     
4Gull II b2 32-bit2982 13 − 19
+5−11=16
+14
10 − 21
+0−11=20
−54
         
5Protector 1.5.0 32-bit2948  10 − 20
+2−12=16
−22
         
6Toga II 3.02850      2 − 0
+2−0=0
+INF
     
7Booot 5.1.02844 5 − 33
+0−28=10
−70
5.5 − 28.5
+0−23=11
−60
  0 − 2
+0−2=0
−INF
 3.5 − 6.5
+1−4=5
−102
6 − 0
+6−0=0
+INF
13.5 − 9.5
+9−5=9
−45
7 − 3
+5−1=4
+16
3 − 2
+2−1=2
−57
8MinkoChess 1.3 32-bit2829      6.5 − 3.5
+4−1=5
+102
 7.5 − 2.5
+6−1=3
+106
   
9Texel 1.01 32-bit2765      0 − 6
+0−6=0
−INF
2.5 − 7.5
+1−6=3
−106
    
10Scorpio 2.7 32-bit2749      9.5 − 13.5
+5−9=9
+45
   29.5 − 22.5
+20−13=19
+29
16 − 18
+10−12=12
−40
11Crafty 23.4 32-bit2733 1.5 − 2.5
+0−1=3
+250
    3 − 7
+1−5=4
−16
  22.5 − 29.5
+13−20=19
−29
 22 − 22
+13−13=18
−5
12Bison 9.11 32-bit2728      2 − 3
+1−2=2
+57
  18 − 16
+12−10=12
+40
22 − 22
+13−13=18
+5
 
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 1-2-CPU engines (best versions only), top 12
#NameElo123456789101112
1ChessBrainVB 3.723062 84.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish 2.2.2 32-bit305115.2 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 98.5100.0100.0100.0100.0100.0100.0100.0
5Protector 1.5.0 32-bit29480.00.00.01.5 100.0100.0100.0100.0100.0100.0100.0
6Toga II 3.028500.00.00.00.00.0 75.988.2100.0100.0100.0100.0
7Booot 5.1.028440.00.00.00.00.024.1 80.7100.0100.0100.0100.0
8MinkoChess 1.3 32-bit28290.00.00.00.00.011.819.3 99.9100.0100.0100.0
9Texel 1.01 32-bit27650.00.00.00.00.00.00.00.1 80.596.699.0
10Scorpio 2.7 32-bit27490.00.00.00.00.00.00.00.019.5 88.796.1
11Crafty 23.4 32-bit27330.00.00.00.00.00.00.00.03.411.3 66.2
12Bison 9.11 32-bit27280.00.00.00.00.00.00.00.01.03.933.8 
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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Created in 2005-2013 by CCRL team
Last games added on March 16, 2019