CCRL 40/15
Downloads and Statistics
October 24, 2020
Testing summary:
Total: 1'185'135 games
played by 2'728 programs

White wins: 408'196 (34.4%)
Black wins: 301'376 (25.4%)
Draws: 475'563 (40.1%)
White score: 54.5%

Open source 32-bit 1-2-CPU engines

Comparing 342 engines!
94 best versions of selected engines played 3592 games with each other

CCRL 40/15 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 15 minutes on an Intel i7-4770k.
Computed on October 24, 2020 with Bayeselo based on 1'185'135 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 3.743068+15−1548.7%+6.950.6%1280 
73.0%
 ChessBrainVB 3.723061+15−1551.2%−9.843.6%1423
86.8%
2Stockfish 2.2.2 32-bit3049+14−1461.4%−73.648.4%1619
56.5%
 Sting SF 4.63047+30−3045.4%+28.447.0%334
56.5%
 ChessBrainVB 3.703043+23−2351.1%−9.648.1%551
61.9%
 Stockfish 2.3.1 32-bit3039+17−1757.2%−44.750.5%1095
61.7%
 ChessBrainVB 3.663035+23−2351.5%−10.351.2%568
68.4%
 Sting SF 4.73027+22−2244.9%+30.650.2%646
49.7%
 Stockfish 2.1.1 32-bit3027+15−1563.5%−89.943.1%1390
56.3%
 ChessBrainVB 3.683025+21−2150.1%−1.254.3%654
57.4%
3IvanHoe 9.46h 32-bit3023+14−1355.8%−37.853.6%1668
85.8%
 Stockfish 2.0.1 32-bit3011+17−1764.8%−96.146.0%1166
76.6%
 Sting SF 2 32-bit3002+17−1751.3%−9.451.2%1062
52.7%
 Stockfish 1.9.1 32-bit3001+16−1664.3%−92.647.2%1286
85.1%
 Stockfish 1.8 32-bit2989+17−1664.5%−91.947.5%1172
55.5%
 ChessBrainVB 3.612987+27−2749.3%+4.247.7%421
63.8%
4Gull II b2 32-bit2981+18−1846.8%+19.252.6%960
55.8%
 ChessBrainVB 3.502979+24−2352.4%−15.746.7%553
54.2%
 Gull II 32-bit2978+18−1846.0%+21.757.1%854
50.6%
 Stockfish 1.7.1 32-bit2977+16−1664.6%−96.045.7%1320
97.7%
5Protector 1.5.0 32-bit2947+25−2545.2%+27.751.7%470
82.0%
 Stockfish 1.6.3 32-bit2933+17−1761.0%−69.648.2%1128
88.3%
 ChessBrainVB 3.312915+25−2552.6%−14.645.1%503
98.2%
 Gull 1.0a 32-bit2885+12−1245.7%+29.543.7%2282
81.5%
 Protector 1.4.0 32-bit2878+11−1145.6%+29.941.0%2804
55.7%
 Gull 1.1 32-bit2876+17−1747.4%+16.748.9%1051
50.4%
 Gull 1.2 32-bit2876+12−1245.9%+27.742.3%2340
58.8%
 ChessBrainVB 3.202873+25−2550.3%−2.447.4%489
57.8%
 Gull 0.12a 32-bit2870+21−2149.4%+2.944.8%717
70.3%
 Stockfish 1.5.1 32-bit2863+15−1554.8%−31.242.9%1530
88.7%
6Toga II 3.02850+16−1548.1%+10.842.9%1311
58.7%
 Gull 0.11a 32-bit2847+20−2146.8%+17.846.8%722
62.0%
7Booot 5.1.02843+10−1045.8%+29.541.4%3401
80.9%
8MinkoChess 1.3 32-bit2829+31−3146.0%+25.045.5%314
48.6%
 Protector 1.3.5 32-bit2829+15−1445.6%+28.545.9%1493
50.5%
 Stockfish 1.4 32-bit2829+16−1653.6%−23.249.1%1168
58.4%
 Cyclone xTreme Fury2827+19−1948.1%+10.548.8%811
53.7%
 Grapefruit 1.0 32-bit2826+9−948.4%+10.147.7%3991
48.1%
 Toga II 1.4.1SE2826+12−1250.0%+1.943.5%2395
56.6%
 Booot 5.02824+15−1545.2%+29.243.3%1350
51.5%
 Protector 1.3.4 32-bit2824+15−1545.6%+28.446.2%1356
52.5%
 Cyclone xTreme2823+13−1344.2%+38.345.8%2009
54.7%
 Cyclone 3.42822+21−2151.5%−9.047.2%685
50.9%
 ChessBrainVB 3.032821+25−2549.9%−1.640.8%512
53.2%
 Cyclone xTreme Rage2820+25−2548.4%+9.346.8%476
49.5%
 Toga II 1.4.1SE62820+23−2350.4%+0.345.1%567
63.7%
 Toga II 3.1.2SE2815+17−1752.9%−19.643.6%1051
52.2%
 Cyclone 2.22814+28−2849.1%+5.447.4%382
68.9%
 TheMadPrune 1.1.252805+24−2451.4%−10.248.0%504
56.3%
 Toga II 1.4 beta5c2802+23−2352.9%−18.945.9%564
51.7%
 Protector 1.3.1b 32-bit2801+23−2348.8%+9.143.6%608
64.8%
 Protector 1.3.2 32-bit2795+21−2145.7%+26.150.4%659
56.1%
 Stockfish 1.3.1 32-bit2793+25−2546.1%+24.841.4%512
60.5%
 Toga II 1.3.12789+12−1250.0%−1.142.1%2565
66.6%
 Grapefruit 1.0a32781+31−3248.1%+11.941.6%315
52.2%
 Cyclone 1.02780+32−3251.0%−7.239.3%300
50.9%
 MinkoChess 1.2 32-bit2780+14−1445.4%+31.540.6%1785
49.1%
 Stockfish 1.2 Default2780+21−2246.1%+23.944.5%679
77.1%
 Toga II 1.3.42767+28−2852.9%−18.642.1%411
55.0%
9Glaurung 2.1 32-bit2765+18−1846.3%+24.839.5%1067
51.0%
10Texel 1.01 32-bit2764+28−2852.2%−18.335.0%432
63.1%
 Toga II 1.2.1a 32-bit2759+12−1250.5%−6.639.2%2354
63.4%
 Glaurung 2.2 32-bit2754+24−2446.0%+25.241.4%565
63.8%
11Scorpio 2.7 32-bit2749+20−2049.0%+8.536.2%826
55.8%
 Stockfish 1.012746+31−3150.5%−5.743.8%322
54.0%
 MinkoChess 1.0 32-bit2744+32−3249.8%+1.141.1%314
56.9%
 MinkoChess 1.1 32-bit2740+27−2745.7%+26.440.9%455
54.9%
 Glaurung 2.0.1 32-bit2738+16−1747.2%+16.840.6%1196
58.1%
 Toga II 1.2 32-bit2735+25−2552.4%−18.837.2%511
56.7%
12Crafty 23.4 32-bit2732+19−1950.8%−5.240.4%861
54.4%
 Toga II 1.1a 32-bit2731+16−1652.8%−19.238.9%1275
61.7%
13Bison 9.11 32-bit2727+14−1448.5%+10.537.2%1810
75.3%
 Crafty 23.3 32-bit2715+32−3250.5%−4.141.4%309
68.5%
14Critter 0.42 32-bit2705+25−2551.9%−12.441.1%494
62.7%
15DanaSah 8.32700+20−2149.7%−2.340.4%775
57.4%
 Booot 4.15.12696+30−3046.1%+24.242.1%359
50.1%
 Glaurung 2 epsilon/5 32-bit2696+27−2748.1%+11.235.8%441
52.3%
 Crafty 23.2 32-bit2695+32−3247.8%+16.040.0%320
51.1%
 Fruit 2.12695+25−2551.5%−14.237.2%522
54.8%
 Booot 4.15.02693+14−1445.9%+26.444.9%1651
49.6%
 Scorpio 2.6 32-bit2693+31−3148.9%+7.541.7%321
53.5%
16Vajolet 2.482691+31−3148.9%+5.333.9%348
59.4%
 Crafty 23.1 32-bit2687+18−1846.2%+24.442.2%970
55.0%
17Bobcat 3.25 32-bit2684+31−3146.9%+22.832.2%351
67.9%
 MinkoChess 0.8 32-bit2674+33−3351.3%−13.541.5%301
59.5%
 ChessBrainVB 2.052669+23−2349.6%+1.136.1%609
51.2%
 Glaurung 1.2.1 Avalanche 32-bit2668+32−3252.1%−16.635.4%328
49.3%
 Scorpio 1.92668+30−3050.1%−3.234.0%362
52.2%
18Daydreamer 1.75 32-bit2667+17−1747.7%+14.841.2%1157
50.6%
 Scorpio 1.842667+32−3247.2%+9.329.9%354
51.6%
 Booot 4.14.02666+20−2051.4%−9.341.8%765
56.4%
 Glaurung 1.2.1 Crusader 32-bit2663+32−3251.6%−14.228.6%343
50.3%
 Scorpio 2.5 32-bit2663+32−3249.5%+4.142.3%307
54.7%
 Scorpio 1.912661+14−1445.7%+29.136.7%1893
53.1%
19K2 0.952660+18−1747.5%+17.032.5%1134
49.3%
 Vajolet 2.032660+24−2451.2%−11.133.8%562
53.6%
 Bobcat 2.75 32-bit2659+24−2447.7%+14.836.9%558
60.4%
 Glaurung 1.2.1 32-bit2655+16−1746.4%+23.533.6%1265
50.1%
 Scorpio 2.02b2655+30−3047.3%+17.237.2%355
55.2%
 Scorpio 2.0 32-bit2653+17−1745.9%+29.034.1%1256
51.7%
 Scorpio 2.1 32-bit2652+34−3449.1%+4.538.2%280
58.6%
20Cyrano 0.6b17 32-bit2648+14−1448.6%+8.340.5%1653
58.2%
 Scorpio 1.812644+34−3449.8%+5.331.4%299
58.5%
 DanaSah 7.32640+14−1449.4%+4.634.8%1709
48.3%
 Scorpio 1.82640+19−2047.3%+18.935.7%869
58.8%
21RedQueen 1.0.0 32-bit2637+24−2451.6%−8.035.9%576
52.8%
 DanaSah 7.92636+20−2049.2%+4.627.3%944
49.5%
 Scorpio 2.05b2636+32−3250.5%−2.140.8%306
53.4%
 Glaurung 1.0.2 32-bit2634+17−1747.4%+20.332.0%1209
60.3%
 Crafty 23.0 32-bit2630+29−2949.9%+1.241.3%380
51.1%
22‑23Cheng3 1.07 32-bit2629+26−2646.6%+22.831.7%517
49.5%
22‑23Nawito 19062629+21−2150.4%−1.636.7%727
52.8%
24Delfi 5.12628+25−2646.3%+24.133.9%522
54.5%
 Glaurung 1.1 32-bit2626+33−3348.8%+10.432.1%324
55.5%
25Arasan 13.4 32-bit2623+30−3049.7%+1.334.8%374
57.6%
 Bison 9.62619+23−2351.3%−13.433.9%635
51.1%
26Phalanx XXV2619+15−1549.6%+2.132.3%1501
53.0%
27Caligula 0.9g2618+21−2153.7%−28.629.8%784
50.3%
 DanaSah 7.02618+26−2651.3%−10.337.8%479
52.1%
 Arasan 14.1 32-bit2616+33−3349.0%+5.033.3%309
51.4%
 Bison 9.8 32-bit2616+32−3349.8%−1.533.7%309
48.9%
 K2 0.912616+15−1549.0%+7.132.9%1497
67.3%
 Arasan 13.2 32-bit2608+32−3251.0%−5.738.5%312
56.1%
 DanaSah 6.502605+22−2249.7%+0.936.0%691
51.8%
 Scorpio 1.72604+32−3249.7%+0.138.1%310
53.2%
 DanaSah 6.802602+28−2850.5%−2.040.3%412
57.0%
 Delfi 5.02599+20−2047.5%+15.437.1%805
51.7%
 Nawito 18122599+19−1948.3%+11.633.0%892
49.2%
28Sloppy 0.2.2 32-bit2599+14−1448.1%+12.037.8%1775
56.6%
 Crafty 22.8 32-bit2596+32−3248.7%+6.835.9%315
57.1%
29Betsabe II 1.962592+21−2151.0%−6.126.4%828
56.6%
30CuckooChess 1.12 32-bit2590+25−2548.8%+8.429.7%539
55.4%
 Booot 4.13.12587+28−2849.4%+1.639.9%404
54.7%
 Nawito 1.1d2585+28−2850.2%−2.836.7%401
48.5%
 RedQueen 1.1.1 32-bit2585+32−3350.6%+0.135.7%308
54.1%
 K2 0.872583+17−1849.0%+6.534.7%1102
57.8%
 Crafty 22.4 32-bit2580+32−3248.1%+11.537.7%318
53.3%
 Arasan 13.1 32-bit2578+32−3247.9%+14.237.5%312
52.2%
 RedQueen 0.9.8 32-bit2577+22−2249.6%+4.927.7%730
54.7%
 Cheng3 1.04 32-bit2575+32−3250.2%−2.134.0%326
58.6%
 Bobcat 20110414 32-bit2570+31−3149.4%+2.041.5%325
50.2%
 Scorpio 2.2 32-bit2570+28−2847.1%+19.935.3%417
50.4%
 DanaSah 5.072569+17−1749.9%−0.537.2%1191
57.8%
31Brutus 8.05 32-bit2567+17−1749.1%+3.936.8%1142
52.4%
 Cyrano 0.52566+32−3150.5%−2.935.9%326
51.8%
 Arasan 12.3 32-bit2565+24−2446.8%+23.430.0%597
49.2%
 CuckooChess 1.11 32-bit2565+29−2950.4%−2.634.1%384
52.6%
 Cheng3 1.06 32-bit2564+30−3047.3%+15.735.9%357
53.1%
 Bobcat 20110220 32-bit2562+32−3248.7%+7.935.0%311
55.2%
 Cheng3 1.05 32-bit2559+32−3248.0%+14.733.6%324
51.1%
 Arasan 11.7 32-bit2558+32−3249.2%+6.436.0%308
56.4%
 DanaSah 4.882555+22−2250.5%−3.233.9%676
57.8%
 DanaSah 5.002552+29−2948.5%+8.632.2%395
53.9%
 Crafty 21.6 32-bit2549+34−3447.8%+13.430.1%302
58.3%
 Betsabe II 1.842545+14−1448.3%+14.225.6%1851
57.1%
 Crafty 21.5 32-bit2542+32−3248.3%+13.628.5%344
51.7%
 DanaSah 4.662541+26−2648.1%+11.835.2%475
52.0%
 DanaSah 4.602540+25−2548.5%+10.935.1%513
50.2%
32Tucano 1.042540+30−3047.2%+17.636.5%359
53.2%
33Rodent 0.102538+33−3351.1%−9.731.9%313
51.5%
 Crafty 22.0 32-bit2537+33−3348.5%+10.431.9%304
50.4%
 Phalanx XXIV2537+20−2048.7%+7.827.3%887
55.0%
 Caligula 0.82535+20−2049.1%+7.326.3%938
55.8%
 Arasan 11.6 32-bit2533+33−3351.8%−12.932.6%304
48.6%
 K2 0.832533+26−2651.7%−11.933.3%474
54.5%
 Arasan 12.1 32-bit2531+33−3251.4%−12.127.3%326
50.3%
 CuckooChess 1.102531+31−3151.5%−11.934.5%330
58.4%
 DanaSah 4.242527+17−1751.5%−10.736.9%1128
67.2%
34EXchess 6.10b 32-bit2519+32−3349.4%+3.332.5%314
53.1%
 Crafty 20.14 32-bit2517+27−2747.4%+19.533.4%482
54.2%
 Brutus 7.02b2515+19−1852.0%−15.835.4%994
52.0%
 DanaSah 5.062514+32−3249.5%+1.635.1%319
51.4%
 DanaSah 4.452513+29−2949.9%+1.938.4%378
56.1%
 Arasan 10.0 32-bit2510+33−3349.0%+5.928.8%309
49.4%
 Crafty 20.13 32-bit2510+33−3348.7%+9.933.3%312
52.5%
 CuckooChess 1.092509+33−3351.6%−13.226.8%317
50.7%
 Betsabe II 1.752508+22−2251.8%−14.123.3%730
58.3%
 DanaSah 4.372504+32−3249.7%+2.238.3%321
54.1%
 Crafty 20.11 32-bit2502+33−3349.8%+3.530.0%307
50.0%
35Pawny 0.3.1 32-bit2502+33−3348.9%+8.028.7%310
52.0%
 Arasan 11.3 32-bit2501+33−3448.7%+7.630.9%301
55.2%
 Arasan 10.32498+23−2346.3%+26.830.4%652
56.3%
 Cheng3 1.03 32-bit2495+33−3350.6%−5.930.8%318
51.9%
36GreKo 9.2 32-bit2494+33−3349.7%+1.432.9%304
52.7%
 K2 0.752492+23−2352.4%−18.432.8%634
58.6%
37DoubleCheck 3.1 32-bit2488+34−3451.0%−8.524.8%306
50.7%
 Arasan 11.4 32-bit2487+33−3449.0%+8.328.5%305
50.6%
 GreKo 8.2 32-bit2487+26−2649.1%+5.433.8%506
62.0%
38Pepito 1.59 32-bit2481+24−2449.6%+1.534.0%583
53.4%
 Arasan 10.2 32-bit2480+24−2445.9%+31.727.8%632
64.0%
39BBChess 1.3b2474+23−2349.2%+5.637.9%589
52.6%
 BBChess 1.3a2473+25−2551.6%−13.030.5%528
54.2%
 Arasan 10.42471+20−2045.8%+29.529.8%866
54.5%
40Counter 1.22469+17−1748.2%+13.238.5%1139
63.2%
 Betsabe II 1.662464+22−2246.9%+22.928.2%728
52.0%
41‑42Carballo 1.22464+23−2252.9%−19.430.4%690
49.1%
41‑42Nemeton 1.812464+20−2047.8%+14.433.6%847
53.9%
 Carballo 1.32462+25−2547.4%+18.231.0%561
52.4%
 Pawny 0.3 32-bit2461+33−3349.2%+3.934.3%303
52.3%
 Nemeton 1.82460+17−1751.9%−15.327.3%1250
60.0%
 Counter 1.12456+23−2350.8%−7.837.7%632
57.6%
 Nemeton 1.512453+22−2249.8%−0.328.8%732
55.2%
 Cyrano 0.32451+34−3449.2%+4.123.8%311
51.2%
 GreKo 8.0 32-bit2450+29−2950.6%−3.929.7%411
56.1%
 Arasan 9.52446+35−3647.3%+17.023.7%291
56.1%
 Arasan 10.12443+27−2746.8%+28.328.5%508
48.6%
 Betsabe II 1.472443+20−2049.9%+2.325.3%902
50.2%
43Typhoon 1.00-3482443+30−3048.8%+9.727.5%385
52.5%
 Cheng3 1.02b2442+33−3350.2%−4.330.4%312
53.2%
 K2 0.792440+29−2947.4%+18.730.6%402
51.4%
 Nemeton 1.62439+24−2446.4%+25.331.8%604
58.8%
 Critter 0.382435+32−3251.1%−9.333.4%320
50.4%
 Typhoon 1.00-3582435+17−1748.2%+11.431.1%1220
54.0%
44Murka 2 32-bit2433+30−3047.4%+18.326.3%400
56.8%
 GreKo 7.2 32-bit2429+33−3348.4%+9.635.5%304
51.6%
 DanaSah 3.632428+27−2748.4%+10.332.3%477
52.6%
 Arasan 9.22427+33−3446.1%+27.430.9%304
53.2%
 Nemeton 1.612425+28−2847.3%+17.532.3%421
56.8%
 DanaSah 2.852421+33−3349.0%+8.333.8%305
51.5%
 Nemeton 1.72420+18−1849.6%+0.825.2%1141
53.1%
45Kiwi 0.6d 32-bit2419+19−1948.3%+10.127.0%975
51.6%
 K2 0.712418+28−2851.4%−9.127.6%439
60.0%
 Pawny 0.2.2 32-bit2413+34−3448.8%+8.628.6%301
51.4%
46Diablo 0.5.12412+18−1848.8%+8.232.4%1082
51.9%
 Typhoon 1.00-3142411+34−3450.2%+0.023.0%305
57.1%
47RomiChess P3k 32-bit2408+19−1949.2%+4.833.0%906
61.7%
48Amy 0.87b2403+24−2449.4%+6.725.7%610
49.8%
 Pawny 0.2.1 32-bit2403+31−3147.1%+19.925.5%373
51.0%
 Cyrano 0.2f2402+32−3348.4%+14.432.9%316
53.0%
 Pawny 0.2 32-bit2401+29−2949.2%+5.130.8%396
56.2%
49Simplex 0.9.8 32-bit2397+30−3149.0%+5.831.2%359
56.8%
 Phalanx XXII2394+24−2550.1%−1.223.5%595
69.3%
 DoubleCheck 2.5.4 32-bit2383+33−3350.5%−3.328.6%318
51.1%
 RomiChess P3L 32-bit2383+33−3346.3%+28.133.4%314
48.8%
50Thor's Hammer 2.28 32-bit2383+22−2249.0%+7.128.8%730
59.7%
 GreKo 6.302378+33−3348.0%+13.931.6%307
56.2%
 Carballo 1.1.12375+32−3247.5%+18.727.4%340
53.2%
 Counter 1.02373+32−3250.3%−4.235.3%312
50.3%
 Typhoon 1.00-2852372+34−3449.5%+3.120.1%314
52.6%
 GreKo 7.02371+28−2846.3%+28.727.8%454
49.8%
51Ifrit m1.5 32-bit2371+27−2746.6%+24.729.1%453
55.1%
 GreKo 6.252368+33−3348.5%+9.631.5%308
57.5%
 GreKo 6.52364+26−2648.9%+7.631.5%495
49.4%
 Phalanx XXIII2364+32−3246.3%+24.424.8%351
66.3%
 Nemeton 1.412356+25−2547.6%+18.333.7%514
51.6%
 K2 0.672355+23−2352.7%−17.529.7%677
51.9%
 Nemeton 1.32354+31−3152.1%−17.333.5%340
52.7%
 Counter 0.82353+32−3248.6%+10.435.6%312
61.1%
 GreKo 5.92347+23−2446.6%+26.029.3%635
55.8%
 Ifrit m1.6 32-bit2344+32−3247.5%+14.835.0%314
52.3%
52Xpdnt 0907042343+33−3351.8%−13.929.0%314
62.6%
 Daydreamer 1.52336+22−2252.1%−18.734.3%722
60.2%
 Nemeton 1.12331+29−2947.5%+17.031.3%393
56.1%
53Amundsen 0.802329+17−1749.1%+6.529.2%1269
60.9%
 Simplex 0.9.7 32-bit2324+31−3148.6%+9.325.4%370
70.1%
 GreKo 5.52311+33−3350.7%−5.033.1%305
54.0%
 Nemeton 1.22309+26−2646.3%+23.828.7%516
63.4%
 Brutus 6.12302+34−3448.4%+7.825.0%312
51.3%
 Xpdnt 0809272301+29−2951.2%−8.424.8%428
52.4%
54Natwarlal 0.142300+19−1948.7%+9.225.0%1035
65.3%
 Nemeton 1.02293+30−3052.6%−18.327.4%383
49.8%
 Pawny 0.1.62293+33−3352.1%−15.524.4%328
50.8%
 Natwarlal 0.122292+34−3449.4%+7.726.6%308
70.6%
 Brutus 5.42279+34−3450.7%−4.029.1%302
52.0%
 GreKo 5.2.52278+34−3451.3%−11.926.6%297
81.1%
55Sungorus 1.4 32-bit2260+21−2148.2%+12.326.5%820
59.4%
 Sungorus 1.3 32-bit2255+34−3452.7%−16.324.3%301
53.7%
56RattateChess 1.0 Nosferatu2253+18−1849.9%+1.127.8%1036
53.3%
 Brutus 6.02252+35−3548.8%+5.222.6%301
51.7%
 EXchess 5.01b 32-bit2251+29−2946.5%+20.931.2%401
75.0%
57Feuerstein 0.4.6.12239+19−1949.1%+5.528.5%944
53.0%
 Betsabe II 1.08c2237+35−3549.2%+8.121.0%300
72.3%
 Vajolet 1.62.12222+34−3447.7%+12.528.4%310
55.3%
58‑59Bagatur 1.2d 32-bit2219+34−3446.8%+19.927.2%298
51.1%
58‑59Beowulf 2.4a 32-bit2219+19−1953.3%−25.825.0%1008
67.7%
60ZCT 0.3.24512211+27−2749.4%+3.625.5%478
52.4%
 Betsabe II 1.09c2209+34−3548.2%+12.319.8%308
56.8%
61Jazz 501 32-bit2205+29−2952.5%−17.528.5%418
58.3%
 RattateChess Bologna 20072201+25−2551.3%−9.425.0%588
52.4%
62MORA 1.0.02200+27−2752.5%−17.128.0%478
59.7%
 Carballo 0.82196+22−2247.2%+18.930.6%706
50.4%
 Jazz 444 32-bit2196+32−3250.3%−3.525.2%353
62.3%
 Amundsen 0.65.12188+34−3448.7%+7.923.9%305
50.7%
 Feuerstein 0.4.5.22188+37−3749.2%+8.424.7%255
49.9%
 K2 0.572188+33−3347.0%+22.025.8%314
58.6%
 MORA 1.1.02183+27−2845.3%+36.125.0%476
60.8%
 RedQueen 0.62177+30−3046.1%+28.019.9%418
53.1%
 Feuerstein 0.4.62175+38−3850.6%−1.818.5%259
52.1%
 Sungorus 1.22174+26−2652.4%−17.828.7%499
56.3%
 Pawny 0.132171+32−3252.2%−17.920.1%363
60.9%
 Simplex 0.9.3 32-bit2164+34−3448.9%+8.624.8%315
57.3%
 Betsabe II 1.052160+34−3445.2%+33.024.2%314
55.0%
 Bagatur 1.2b 32-bit2157+33−3446.2%+27.829.1%306
48.4%
63OliThink 5.1.92157+30−3046.6%+28.021.3%417
55.5%
64Chesley r323 32-bit2155+24−2448.9%+8.620.7%641
59.0%
 Ifrit j4.32151+28−2845.9%+27.829.5%440
68.7%
 K2 0.43f2140+33−3348.2%+11.621.3%338
54.2%
65Prophet 2.0 32-bit2138+19−1949.3%+4.424.0%1025
55.4%
66Parrot 07.07.222136+19−1947.3%+19.823.0%1047
51.5%
 Parrot 07.01.162135+30−3146.6%+26.121.1%394
68.5%
 Ifrit j4.22124+34−3445.5%+31.326.4%303
64.7%
 DoubleCheck 2.1 32-bit2115+33−3346.3%+30.521.8%362
54.2%
67ChessKISS 1.3a 32-bit2112+33−3347.0%+19.030.3%320
77.7%
 Carballo 0.52097+23−2347.1%+20.221.9%694
78.2%
 Ifrit j2.92081+34−3448.2%+11.421.3%314
51.1%
 Feuerstein 0.4.5.12080+38−3848.0%+12.525.8%248
51.7%
68AdroitChess 0.42079+22−2256.0%−56.315.3%858
92.8%
 ZCT 0.3.25002050+32−3246.2%+29.416.8%381
53.2%
69PLP 16615712048+22−2246.2%+27.324.2%768
59.7%
70Jabba 1.0 32-bit2044+21−2144.8%+38.925.0%839
85.0%
71Faile 1.4.42028+23−2355.2%−28.522.1%774
54.5%
72Slibo 0.5.12026+26−2645.5%+33.319.4%573
91.5%
73BibiChess 0.52001+24−2545.7%+31.226.5%607
61.2%
74Cupcake 1.01995+31−3145.5%+31.322.7%401
54.3%
75Schola 1.1.0 32-bit1993+26−2645.6%+32.125.1%514
68.9%
 AdroitChess 0.31983+25−2544.2%+46.718.5%626
85.0%
76Dabbaba 5.671965+25−2545.5%+33.326.4%557
65.6%
77Sissa 2.01958+23−2353.1%−23.030.1%678
56.3%
 Feuerstein 0.4.4.21955+28−2941.2%+91.718.7%518
49.3%
78Monik 2.2.3 32-bit1955+30−3044.4%+39.327.1%395
53.5%
79Wowl 1.3.81953+26−2745.4%+35.513.3%573
54.3%
80Smash 1.0.31951+26−2640.8%+74.317.8%574
68.9%
81Micro-Max 4.8 (DM-PII)1943+20−2048.3%+12.426.1%865
59.4%
 Dabbaba 6.521939+22−2248.6%+11.320.3%777
63.2%
82Eia 0.31934+20−2047.1%+22.424.4%914
71.0%
 Wowl 1.3.71925+25−2546.8%+24.711.7%630
76.0%
 Carballo 0.41910+32−3335.8%+103.534.8%342
55.6%
 Dabbaba 7.491907+11−1247.8%+17.419.9%3152
53.1%
 Jabba 130320121906+31−3139.1%+97.616.7%442
58.6%
83ChessterfieldCL i5a1902+24−2440.6%+73.120.4%657
68.5%
 Micro-Max 4.81892+28−2836.7%+103.224.7%493
77.9%
84CDrill 1800 build 41878+23−2441.4%+72.815.5%741
100.0%
85RataAeroespacial 0.2.11815+13−1342.5%+64.412.9%2478
100.0%
86TSCP 1.811692+20−2047.4%+21.617.0%1072
84.4%
87Spartan 1.01674+25−2563.5%−103.021.2%624
67.4%
88Philemon C1667+25−2562.3%−95.422.0%626
59.4%
89VanillaChess 2.6g1662+25−2561.5%−88.820.2%624
100.0%
90PolarChess 1.31574+25−2549.3%+3.316.9%629
56.3%
91Darky 0.5d1571+24−2443.5%+56.120.8%677
98.7%
92MSCP 1.6h1529+25−2544.0%+50.815.1%628
99.8%
93Apep 1.011479+25−2541.2%+72.010.1%683
100.0%
94BACE 0.461378+23−2421.5%+257.09.8%1027
 

Results matrix

Open source 32-bit 1-2-CPU engines (best versions only), top 12
#NameElo123456789101112
1ChessBrainVB 3.743068            
2Stockfish 2.2.2 32-bit3049  26 − 28
+8−10=36
−37
19 − 13
+11−5=16
−13
  33 − 5
+28−0=10
+71
    2.5 − 1.5
+1−0=3
−249
3IvanHoe 9.46h 32-bit3023 28 − 26
+10−8=36
+37
 21 − 10
+11−0=20
+53
20 − 10
+12−2=16
+21
 28.5 − 5.5
+23−0=11
+59
     
4Gull II b2 32-bit2981 13 − 19
+5−11=16
+13
10 − 21
+0−11=20
−53
         
5Protector 1.5.0 32-bit2947  10 − 20
+2−12=16
−21
         
6Toga II 3.02850      2 − 0
+2−0=0
+INF
     
7Booot 5.1.02843 5 − 33
+0−28=10
−71
5.5 − 28.5
+0−23=11
−59
  0 − 2
+0−2=0
−INF
 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
+16
8MinkoChess 1.3 32-bit2829      6.5 − 3.5
+4−1=5
+101
  7.5 − 2.5
+6−1=3
+105
  
9Glaurung 2.1 32-bit2765            
10Texel 1.01 32-bit2764      0 − 6
+0−6=0
−INF
2.5 − 7.5
+1−6=3
−105
    
11Scorpio 2.7 32-bit2749      9.5 − 13.5
+5−9=9
+44
    29.5 − 22.5
+20−13=19
+28
12Crafty 23.4 32-bit2732 1.5 − 2.5
+0−1=3
+249
    3 − 7
+1−5=4
−16
   22.5 − 29.5
+13−20=19
−28
 
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 3.743068 95.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish 2.2.2 32-bit30494.3 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-bit29810.00.00.0 98.6100.0100.0100.0100.0100.0100.0100.0
5Protector 1.5.0 32-bit29470.00.00.01.4 100.0100.0100.0100.0100.0100.0100.0
6Toga II 3.028500.00.00.00.00.0 75.688.1100.0100.0100.0100.0
7Booot 5.1.028430.00.00.00.00.024.4 80.9100.0100.0100.0100.0
8MinkoChess 1.3 32-bit28290.00.00.00.00.011.919.1 100.099.9100.0100.0
9Glaurung 2.1 32-bit27650.00.00.00.00.00.00.00.0 51.087.799.2
10Texel 1.01 32-bit27640.00.00.00.00.00.00.00.149.0 81.296.8
11Scorpio 2.7 32-bit27490.00.00.00.00.00.00.00.012.318.8 88.8
12Crafty 23.4 32-bit27320.00.00.00.00.00.00.00.00.83.211.2 
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 October 24, 2020