CCRL 40/40
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 1'075'629 games
played by 2'520 programs
147029 CPU days (X2 4600+)

White wins: 373'444 (34.7%)
Black wins: 277'846 (25.8%)
Draws: 424'339 (39.5%)
White score: 54.4%

Open source 32-bit single-CPU engines

Comparing 335 engines!
93 best versions of selected engines played 3387 games with each other

CCRL 40/40 Rating List — Open source 32-bit single-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 August 17, 2019 with Bayeselo based on 1'075'629 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 0.21.2 w42716 GTX10503441+29−2964.7%−89.359.8%336 
100.0%
2ChessBrainVB 3.723062+15−1551.6%−12.143.4%1391
88.1%
3Stockfish 2.2.2 32-bit3050+14−1461.6%−75.548.3%1609
56.4%
 Sting SF 4.63047+30−3045.4%+28.947.0%334
56.5%
 ChessBrainVB 3.703044+23−2351.1%−10.348.1%551
61.8%
 Stockfish 2.3.1 32-bit3039+17−1757.2%−44.450.5%1095
61.5%
 ChessBrainVB 3.663035+23−2351.5%−9.951.2%568
67.8%
 Sting SF 4.73028+22−2244.5%+32.650.5%632
50.8%
 Stockfish 2.1.1 32-bit3027+16−1663.8%−92.043.0%1362
56.2%
 ChessBrainVB 3.683025+21−2150.1%−0.954.3%654
57.0%
4IvanHoe 9.46h 32-bit3023+14−1355.8%−37.453.6%1668
81.0%
 Stockfish 2.0.1 32-bit3013+18−1766.9%−109.546.2%1074
80.6%
 Sting SF 2 32-bit3003+17−1751.3%−10.151.2%1062
55.7%
 Stockfish 1.9.1 32-bit3001+17−1665.7%−101.947.0%1208
80.3%
 ChessBrainVB 3.612987+27−2749.3%+4.347.7%421
50.0%
 Stockfish 1.8 32-bit2987+18−1867.5%−110.147.5%1020
66.5%
5Gull II b2 32-bit2982+17−1846.8%+18.752.6%960
56.4%
 ChessBrainVB 3.502979+24−2452.4%−15.646.7%553
53.6%
 Gull II 32-bit2978+18−1846.0%+22.257.1%854
53.3%
 Stockfish 1.7.1 32-bit2977+17−1766.5%−109.245.6%1198
97.2%
6Protector 1.5.0 32-bit2947+25−2545.2%+28.051.7%470
82.4%
 Stockfish 1.6.3 32-bit2933+17−1761.1%−70.748.3%1108
88.1%
 ChessBrainVB 3.312915+25−2552.6%−14.445.1%503
98.2%
 Gull 1.0a 32-bit2885+12−1245.3%+32.844.0%2192
81.9%
 Protector 1.4.0 32-bit2878+11−1145.3%+31.741.0%2750
53.9%
 Gull 1.1 32-bit2877+17−1747.4%+16.048.9%1051
55.2%
 Gull 1.2 32-bit2875+12−1245.2%+32.642.7%2278
55.0%
 ChessBrainVB 3.202874+25−2550.3%−3.147.4%489
62.7%
 Gull 0.12a 32-bit2868+21−2149.6%+2.544.3%697
60.4%
 Stockfish 1.5.1 32-bit2865+15−1555.4%−35.443.1%1486
90.3%
7Toga II 3.02850+15−1648.1%+11.542.9%1311
60.1%
 Gull 0.11a 32-bit2847+21−2146.8%+17.846.8%722
62.5%
8Booot 5.1.02843+10−1045.5%+31.141.4%3342
93.7%
 Protector 1.3.5 32-bit2830+15−1545.5%+28.245.9%1489
48.8%
 Stockfish 1.4 32-bit2830+16−1653.8%−25.048.7%1130
52.3%
9MinkoChess 1.3 32-bit2829+31−3146.0%+25.245.5%314
54.3%
 Cyclone xTreme Fury2827+19−1948.1%+10.948.8%811
51.4%
 Toga II 1.4.1SE2827+12−1250.0%+1.543.5%2395
52.9%
 Grapefruit 1.0 32-bit2826+9−948.4%+10.547.7%3991
54.8%
 Booot 5.02825+15−1645.0%+30.343.5%1336
56.1%
 Cyclone xTreme2824+13−1344.2%+37.445.8%2009
47.2%
 Protector 1.3.4 32-bit2824+15−1545.6%+28.746.2%1356
54.7%
 Cyclone 3.42823+21−2151.5%−9.147.2%685
52.7%
 ChessBrainVB 3.032822+25−2549.9%−2.440.8%512
52.1%
 Cyclone xTreme Rage2821+25−2548.4%+8.946.8%476
49.4%
 Toga II 1.4.1SE62821+23−2350.4%−0.245.1%567
57.0%
 Toga II 3.1.2SE2818+18−1853.5%−23.343.7%1019
57.0%
 Cyclone 2.22815+28−2849.1%+5.547.4%382
69.6%
 TheMadPrune 1.1.252805+24−2451.4%−9.348.0%504
53.2%
 Toga II 1.4 beta5c2804+24−2453.3%−21.546.1%542
55.6%
 Protector 1.3.1b 32-bit2802+23−2348.8%+8.543.6%608
65.1%
 Protector 1.3.2 32-bit2795+21−2145.7%+26.350.4%659
55.4%
 Stockfish 1.3.1 32-bit2793+25−2546.1%+25.241.4%512
60.9%
 Toga II 1.3.12789+12−1250.0%−0.642.1%2565
64.5%
 Grapefruit 1.0a32783+32−3247.7%+14.542.4%309
51.9%
 MinkoChess 1.2 32-bit2782+14−1445.6%+30.540.7%1765
52.5%
 Cyclone 1.02781+32−3251.0%−7.639.3%300
50.7%
 Stockfish 1.2 Default2781+21−2246.1%+23.244.5%679
77.6%
 Toga II 1.3.42767+28−2852.9%−18.442.1%411
53.6%
10‑11Glaurung 2.1 32-bit2765+18−1846.3%+25.439.5%1067
51.7%
10‑11Texel 1.01 32-bit2765+28−2852.2%−18.935.0%432
63.8%
 Toga II 1.2.1a 32-bit2759+12−1250.5%−6.439.2%2354
60.1%
 Glaurung 2.2 32-bit2756+24−2446.0%+24.441.4%565
54.0%
 Stockfish 1.012754+32−3252.5%−19.945.4%302
59.2%
12Scorpio 2.7 32-bit2749+20−2049.0%+9.136.2%826
61.6%
 MinkoChess 1.0 32-bit2744+32−3249.4%+3.940.9%308
55.9%
 MinkoChess 1.1 32-bit2740+27−2745.7%+26.840.9%455
55.1%
 Glaurung 2.0.1 32-bit2738+16−1647.2%+17.140.6%1196
58.8%
 Toga II 1.2 32-bit2735+25−2552.4%−18.937.2%511
55.6%
13Crafty 23.4 32-bit2733+19−1950.8%−5.740.4%861
54.3%
 Toga II 1.1a 32-bit2731+16−1653.1%−20.739.0%1265
62.3%
14Bison 9.11 32-bit2728+14−1448.5%+9.837.2%1810
74.8%
 Crafty 23.3 32-bit2716+32−3250.5%−4.441.4%309
68.8%
15Critter 0.42 32-bit2706+25−2551.9%−12.941.1%494
67.7%
 Booot 4.15.12697+30−3046.1%+23.442.1%359
51.8%
 Crafty 23.2 32-bit2696+32−3247.8%+15.440.0%320
48.4%
 Glaurung 2 epsilon/5 32-bit2696+27−2748.1%+11.335.8%441
51.4%
 Scorpio 2.6 32-bit2696+32−3249.5%+3.743.2%301
52.1%
 Fruit 2.12695+25−2551.5%−14.237.2%522
54.1%
 Booot 4.15.02693+14−1445.9%+26.744.9%1651
53.5%
16Vajolet 2.482692+31−3148.9%+4.933.9%348
56.5%
17K2 0.952688+25−2650.1%−0.631.0%523
53.0%
 Crafty 23.1 32-bit2687+18−1846.2%+24.742.2%970
54.9%
18Bobcat 3.25 32-bit2685+31−3146.9%+22.332.2%351
67.9%
 MinkoChess 0.8 32-bit2674+33−3351.3%−13.041.5%301
60.2%
 ChessBrainVB 2.052669+23−2349.6%+1.236.1%609
52.1%
19Daydreamer 1.75 32-bit2668+17−1747.7%+14.241.2%1157
50.1%
 Glaurung 1.2.1 Avalanche 32-bit2668+32−3252.1%−16.835.4%328
49.0%
 Scorpio 1.92668+30−3050.1%−3.334.0%362
52.4%
 Scorpio 1.842667+32−3247.2%+9.029.9%354
51.4%
 Booot 4.14.02666+20−2051.4%−9.341.8%765
57.2%
 Glaurung 1.2.1 Crusader 32-bit2663+32−3251.6%−14.628.6%343
48.9%
 Scorpio 2.5 32-bit2663+32−3249.5%+4.442.3%307
57.7%
 Scorpio 1.912660+14−1345.3%+31.736.8%1871
48.6%
 Vajolet 2.032660+24−2451.2%−10.933.8%562
53.0%
 Bobcat 2.75 32-bit2659+24−2447.7%+15.136.9%558
61.8%
 Glaurung 1.2.1 32-bit2655+16−1646.4%+23.333.6%1265
49.1%
 Scorpio 2.02b2655+30−3047.3%+17.337.2%355
55.1%
 Scorpio 2.0 32-bit2653+17−1745.9%+29.234.1%1256
51.4%
 Scorpio 2.1 32-bit2652+34−3449.1%+4.838.2%280
51.6%
 Nawito 19062650+98−10043.5%+43.841.9%31
51.3%
20Cyrano 0.6b17 32-bit2648+14−1448.5%+9.440.7%1613
57.3%
 Scorpio 1.812645+36−3648.3%+16.331.7%271
57.8%
 Scorpio 1.82641+20−2047.3%+18.035.7%861
54.2%
21DanaSah 7.32639+14−1449.4%+4.834.8%1696
53.4%
 DanaSah 7.92638+20−2050.7%−6.327.3%864
52.2%
22RedQueen 1.0.0 32-bit2637+24−2451.6%−7.535.9%576
52.3%
 Scorpio 2.05b2636+32−3250.5%−1.940.8%306
53.8%
 Glaurung 1.0.2 32-bit2634+17−1747.4%+20.332.0%1209
59.6%
 Crafty 23.0 32-bit2630+29−2949.9%+1.641.3%380
51.3%
23Cheng3 1.07 32-bit2629+26−2646.6%+23.031.7%517
52.5%
24Delfi 5.12628+25−2546.3%+24.033.9%522
55.3%
 Glaurung 1.1 32-bit2626+32−3348.8%+10.132.1%324
54.7%
25Arasan 13.4 32-bit2623+30−3049.7%+1.334.8%374
57.4%
 Bison 9.62619+23−2351.3%−13.433.9%635
51.5%
26Phalanx XXV2619+15−1549.6%+1.832.4%1493
52.7%
27Caligula 0.9g2618+23−2355.3%−39.729.4%670
52.4%
 Arasan 14.1 32-bit2617+33−3349.0%+4.233.3%309
49.2%
 DanaSah 7.02617+26−2651.3%−9.837.8%479
54.8%
 K2 0.912615+15−1549.0%+7.132.9%1497
52.8%
 Bison 9.8 32-bit2614+33−3349.7%+0.132.9%301
59.8%
 Arasan 13.2 32-bit2608+32−3251.0%−5.938.5%312
56.6%
 DanaSah 6.502605+22−2249.7%+0.536.0%691
51.8%
 Scorpio 1.72604+32−3249.7%−0.338.1%310
53.4%
 DanaSah 6.802602+28−2850.5%−2.540.3%412
56.6%
 Delfi 5.02599+20−2047.5%+15.237.1%805
50.0%
28Sloppy 0.2.2 32-bit2599+14−1448.1%+12.037.8%1775
58.7%
29Nawito 18122596+20−2048.2%+13.033.2%886
56.6%
 Crafty 22.8 32-bit2593+33−3347.9%+12.536.1%305
54.8%
30CuckooChess 1.12 32-bit2590+26−2648.5%+11.230.1%511
57.0%
 Booot 4.13.12587+28−2849.4%+1.539.9%404
52.5%
 RedQueen 1.1.1 32-bit2586+33−3350.6%−0.735.7%308
53.1%
 Nawito 1.1d2584+28−2850.2%−2.636.7%401
52.4%
 K2 0.872583+18−1849.0%+5.834.7%1102
54.7%
31Betsabe II 1.962581+28−2851.8%−10.627.9%441
50.2%
 Crafty 22.4 32-bit2581+32−3248.2%+10.737.3%308
50.4%
 Arasan 13.1 32-bit2580+32−3347.8%+14.836.8%302
53.2%
 Cheng3 1.04 32-bit2579+33−3351.0%−8.134.4%302
54.1%
 RedQueen 0.9.8 32-bit2577+22−2249.6%+4.627.7%730
64.9%
 Scorpio 2.2 32-bit2570+28−2847.1%+19.935.3%417
50.3%
 Bobcat 20110414 32-bit2569+32−3249.7%+0.941.5%301
50.7%
 DanaSah 5.072569+17−1749.9%−0.837.2%1191
57.9%
32Brutus 8.05 32-bit2567+17−1749.1%+3.636.8%1142
53.6%
 CuckooChess 1.11 32-bit2565+29−2950.4%−2.834.1%384
51.0%
 Cyrano 0.52565+33−3350.7%−4.537.1%302
50.9%
 Arasan 12.3 32-bit2564+24−2446.8%+23.830.0%597
52.6%
 Cheng3 1.06 32-bit2563+30−3047.3%+15.735.9%357
53.4%
 Bobcat 20110220 32-bit2561+33−3348.3%+10.034.9%301
53.5%
 Cheng3 1.05 32-bit2559+32−3248.0%+14.633.6%324
51.3%
 Arasan 11.7 32-bit2558+32−3249.2%+6.136.0%308
55.6%
 DanaSah 4.882555+22−2250.5%−3.133.9%676
58.1%
 DanaSah 5.002551+29−2948.5%+9.632.2%395
54.4%
 Crafty 21.6 32-bit2549+34−3447.8%+13.130.1%302
62.3%
 Betsabe II 1.842543+14−1448.2%+14.325.6%1855
52.2%
 Crafty 21.5 32-bit2542+32−3248.3%+13.428.5%344
51.4%
 DanaSah 4.662541+26−2648.1%+11.835.2%475
52.5%
 DanaSah 4.602540+25−2548.5%+10.535.1%513
49.7%
33Tucano 1.042540+30−3047.2%+17.636.5%359
54.9%
 Crafty 22.0 32-bit2537+33−3348.5%+10.331.9%304
51.2%
 Phalanx XXIV2537+20−2048.7%+7.327.3%887
52.6%
34Rodent 0.102536+33−3351.0%−9.631.4%303
51.7%
 Caligula 0.82535+20−2049.1%+6.426.3%938
54.5%
 K2 0.832533+27−2751.7%−12.533.3%474
51.0%
 Arasan 11.6 32-bit2532+33−3351.8%−12.432.6%304
52.8%
 Arasan 12.1 32-bit2531+33−3351.4%−12.527.3%326
50.2%
 CuckooChess 1.102530+31−3151.5%−11.334.5%330
57.9%
 DanaSah 4.242527+17−1751.5%−11.036.9%1128
65.0%
 Arasan 10.0 32-bit2519+34−3450.5%−4.229.4%299
52.3%
35EXchess 6.10b 32-bit2518+32−3249.4%+3.532.5%314
52.7%
 Crafty 20.14 32-bit2516+27−2747.4%+20.133.4%482
51.0%
 DanaSah 5.062516+33−3349.7%+0.134.6%309
52.6%
 Brutus 7.02b2515+18−1852.0%−16.435.4%994
54.0%
 DanaSah 4.452513+29−2949.9%+1.338.4%378
61.0%
 Betsabe II 1.752508+22−2251.8%−14.923.3%730
48.9%
 CuckooChess 1.092508+33−3351.6%−12.726.8%317
51.7%
 Crafty 20.13 32-bit2507+33−3347.8%+16.434.1%302
59.4%
 DanaSah 4.372501+33−3349.0%+7.138.2%301
50.1%
36Pawny 0.3.1 32-bit2501+33−3348.9%+8.528.7%310
52.0%
 Arasan 11.3 32-bit2500+33−3348.7%+8.130.9%301
50.5%
 Crafty 20.11 32-bit2500+34−3449.8%+3.030.6%301
55.6%
 Arasan 10.32497+24−2445.5%+32.630.8%624
57.4%
 Cheng3 1.03 32-bit2493+33−3350.0%−1.131.2%308
53.3%
 K2 0.752491+23−2352.4%−18.432.8%634
53.2%
37GreKo 9.2 32-bit2490+33−3349.5%+2.133.2%298
53.9%
 Arasan 11.4 32-bit2487+34−3449.0%+8.328.5%305
51.1%
 GreKo 8.2 32-bit2487+26−2649.1%+5.133.8%506
52.1%
38DoubleCheck 3.1 32-bit2485+34−3451.2%−9.025.0%300
53.5%
39Nemeton 1.812483+29−2949.9%−0.737.3%391
52.7%
 Arasan 10.2 32-bit2482+25−2545.4%+35.427.8%594
52.3%
40Pepito 1.59 32-bit2481+24−2449.6%+1.334.0%583
59.8%
41BBChess 1.3b2477+24−2450.4%−2.438.4%549
60.7%
 BBChess 1.3a2472+25−2551.6%−12.630.5%528
53.8%
 Arasan 10.42470+20−2045.5%+32.830.0%850
70.6%
 Betsabe II 1.662462+22−2246.7%+24.328.4%718
51.1%
42Carballo 1.32462+25−2547.4%+17.431.0%561
52.6%
 Pawny 0.3 32-bit2460+33−3349.2%+3.834.3%303
53.5%
 Carballo 1.22458+24−2453.9%−25.629.7%622
49.9%
 Nemeton 1.82458+17−1751.9%−14.927.3%1250
67.1%
 Nemeton 1.512452+22−2249.8%−0.428.8%732
53.4%
 Arasan 9.52450+36−3647.5%+15.023.8%281
50.3%
 Cyrano 0.32450+34−3449.2%+4.623.8%311
52.0%
 GreKo 8.0 32-bit2449+29−2950.6%−3.829.7%411
63.9%
 Betsabe II 1.472442+20−2049.9%+2.525.3%902
50.3%
43Typhoon 1.00-3482442+33−3348.5%+11.729.2%325
51.9%
 Cheng3 1.02b2441+33−3350.2%−3.930.4%312
52.0%
 K2 0.792440+29−2947.6%+17.231.1%396
52.3%
 Arasan 10.12439+27−2845.5%+37.528.5%480
52.0%
 Nemeton 1.62438+24−2446.1%+26.632.3%594
58.0%
 Critter 0.382434+32−3251.1%−9.333.4%320
49.7%
 Typhoon 1.00-3582434+17−1748.2%+11.631.1%1220
53.9%
44Murka 2 32-bit2432+30−3047.4%+18.626.3%400
58.7%
 DanaSah 3.632428+27−2748.4%+10.032.3%477
49.1%
 GreKo 7.2 32-bit2428+33−3348.4%+9.735.5%304
54.8%
 Arasan 9.22425+34−3446.1%+28.130.9%304
52.7%
 Nemeton 1.612424+28−2847.3%+17.432.3%421
56.5%
 DanaSah 2.852420+33−3349.0%+8.533.8%305
53.0%
 Nemeton 1.72419+18−1849.6%+0.125.2%1141
50.9%
45Kiwi 0.6d 32-bit2418+19−1948.3%+10.327.0%975
52.1%
 K2 0.712417+28−2851.4%−9.227.6%439
59.2%
 Pawny 0.2.2 32-bit2412+34−3448.8%+8.928.6%301
54.8%
46Diablo 0.5.12410+18−1848.7%+8.432.3%1072
49.5%
 Typhoon 1.00-3142410+34−3450.2%+0.023.0%305
56.7%
47RomiChess P3k 32-bit2407+19−1949.2%+4.933.0%906
61.9%
48Amy 0.87b2402+24−2449.4%+6.725.7%610
50.4%
 Cyrano 0.2f2402+32−3248.4%+13.632.9%316
49.3%
 Pawny 0.2.1 32-bit2402+31−3147.1%+20.025.5%373
54.1%
 Pawny 0.2 32-bit2400+29−2949.2%+5.130.8%396
56.3%
49Simplex 0.9.8 32-bit2396+30−3049.0%+5.831.2%359
56.9%
 Phalanx XXII2393+25−2550.1%−1.223.5%595
69.2%
 DoubleCheck 2.5.4 32-bit2382+33−3350.5%−3.228.6%318
51.9%
 RomiChess P3L 32-bit2381+33−3346.3%+28.833.4%314
54.8%
50Thor's Hammer 2.28 32-bit2379+23−2347.8%+15.929.6%666
51.8%
 GreKo 6.302378+33−3348.0%+13.631.6%307
57.0%
 Carballo 1.1.12374+32−3247.5%+18.927.4%340
55.8%
51Ifrit m1.5 32-bit2371+27−2846.6%+24.129.1%453
49.3%
 Typhoon 1.00-2852371+35−3549.5%+2.819.4%304
51.4%
 GreKo 7.02370+28−2846.3%+28.827.8%454
55.0%
 GreKo 6.252367+33−3348.0%+13.831.8%302
56.4%
 Phalanx XXIII2364+32−3246.3%+23.524.8%351
50.4%
 GreKo 6.52363+26−2648.9%+7.631.5%495
67.5%
 Nemeton 1.412355+25−2647.6%+18.333.7%514
52.7%
 Nemeton 1.32353+31−3152.1%−17.033.5%340
53.4%
 K2 0.672352+23−2352.5%−16.529.7%667
57.8%
 GreKo 5.92348+24−2446.4%+28.329.3%621
57.9%
 Ifrit m1.6 32-bit2344+33−3347.1%+17.635.1%308
56.3%
52Xpdnt 0907042341+33−3351.8%−14.229.0%314
61.9%
 Daydreamer 1.52334+22−2252.1%−18.334.3%722
59.6%
 Nemeton 1.12330+29−2947.5%+16.731.3%393
55.5%
53Amundsen 0.802327+17−1749.1%+7.329.2%1269
60.4%
 Simplex 0.9.7 32-bit2323+31−3148.6%+9.325.4%370
70.1%
 GreKo 5.52311+33−3350.7%−6.133.1%305
54.6%
 Nemeton 1.22308+26−2646.3%+23.728.7%516
64.3%
54Natwarlal 0.142302+19−1949.3%+5.225.3%1021
55.5%
 Xpdnt 0809272300+29−2951.2%−8.924.8%428
53.6%
 Brutus 6.12298+34−3447.5%+13.925.2%306
59.3%
 Natwarlal 0.122292+34−3449.4%+7.126.6%308
49.6%
 Nemeton 1.02292+30−3052.6%−18.127.4%383
50.1%
 Pawny 0.1.62292+33−3352.1%−15.524.4%328
70.8%
 Brutus 5.42279+34−3450.7%−4.829.1%302
53.9%
 GreKo 5.2.52276+35−3550.9%−8.427.0%289
79.5%
55Sungorus 1.4 32-bit2259+21−2148.2%+12.326.5%820
60.4%
 Sungorus 1.3 32-bit2254+34−3452.7%−16.824.3%301
55.0%
56RattateChess 1.0 Nosferatu2251+19−1949.9%+1.028.0%1008
51.4%
 Brutus 6.02250+35−3548.8%+6.022.6%301
51.9%
 EXchess 5.01b 32-bit2249+29−2946.5%+21.731.2%401
74.4%
57Feuerstein 0.4.6.12238+19−1949.1%+5.628.5%944
53.7%
 Betsabe II 1.08c2236+35−3549.2%+7.721.0%300
71.5%
 Vajolet 1.62.12222+34−3447.7%+11.828.4%310
55.9%
58Bagatur 1.2d 32-bit2218+34−3446.8%+19.827.2%298
51.8%
59Beowulf 2.4a 32-bit2217+20−1953.8%−29.225.4%952
66.6%
60ZCT 0.3.24512210+27−2749.4%+3.525.5%478
52.5%
 Betsabe II 1.09c2208+34−3548.2%+12.219.8%308
57.4%
61Jazz 501 32-bit2204+29−2952.5%−17.928.5%418
57.4%
 RattateChess Bologna 20072200+25−2551.3%−9.325.0%588
63.0%
 Carballo 0.82195+22−2247.2%+18.830.6%706
50.6%
 Jazz 444 32-bit2194+32−3250.3%−2.925.2%353
62.1%
 Amundsen 0.65.12187+34−3448.7%+7.923.9%305
50.6%
 Feuerstein 0.4.5.22187+37−3749.2%+8.424.7%255
54.6%
 K2 0.572184+34−3446.2%+27.425.5%302
61.6%
 RedQueen 0.62177+30−3045.8%+29.119.7%406
54.8%
 Feuerstein 0.4.62174+38−3850.6%−2.218.5%259
52.7%
 Sungorus 1.22172+26−2652.4%−17.728.7%499
55.7%
 Pawny 0.132169+32−3252.2%−17.520.1%363
53.9%
 Simplex 0.9.3 32-bit2167+34−3449.5%+3.625.7%303
63.3%
 Betsabe II 1.052158+34−3445.2%+33.624.2%314
53.8%
62OliThink 5.1.92156+30−3046.6%+27.721.3%417
51.7%
 Bagatur 1.2b 32-bit2155+33−3446.2%+28.529.1%306
49.5%
63Chesley r323 32-bit2155+24−2449.0%+8.321.0%625
65.2%
 Ifrit j4.32148+28−2845.6%+30.629.4%428
66.9%
 K2 0.43f2138+33−3348.2%+12.121.3%338
53.4%
64Prophet 2.0 32-bit2137+19−1949.3%+4.324.0%1025
55.3%
65Parrot 07.07.222135+19−1947.3%+19.823.0%1047
51.3%
 Parrot 07.01.162134+31−3146.6%+26.121.1%394
69.2%
 Ifrit j4.22123+34−3445.5%+30.826.4%303
68.3%
66ChessKISS 1.3a 32-bit2111+33−3347.0%+18.830.3%320
53.6%
 DoubleCheck 2.1 32-bit2109+33−3348.1%+12.421.9%342
74.0%
 Carballo 0.52096+23−2347.1%+19.921.9%694
77.0%
 Feuerstein 0.4.5.12079+38−3848.0%+12.425.8%248
48.9%
 Ifrit j2.92079+34−3448.2%+12.321.3%314
52.5%
67AdroitChess 0.42078+24−2458.3%−74.214.5%760
92.9%
 ZCT 0.3.25002048+32−3246.2%+29.916.8%381
53.8%
68PLP 16615712046+22−2246.1%+28.124.3%760
57.6%
69Jabba 1.0 32-bit2043+21−2144.8%+38.825.0%839
86.1%
70Faile 1.4.42026+23−2355.2%−28.322.1%774
53.0%
71Slibo 0.5.12024+26−2645.5%+34.019.4%573
91.4%
72BibiChess 0.51999+24−2445.7%+32.226.5%607
60.8%
73Cupcake 1.01994+31−3145.5%+31.522.7%401
54.9%
74Schola 1.1.0 32-bit1991+26−2645.6%+32.925.1%514
68.2%
 AdroitChess 0.31983+25−2544.2%+45.918.5%626
85.0%
75Dabbaba 5.671964+25−2545.5%+33.626.4%557
66.0%
76Sissa 2.01957+23−2353.1%−23.030.1%678
55.4%
77Monik 2.2.3 32-bit1954+30−3044.4%+39.427.1%395
51.5%
 Feuerstein 0.4.4.21953+28−2941.2%+92.218.7%518
52.5%
78Wowl 1.3.81952+26−2645.4%+35.413.3%573
54.4%
79Smash 1.0.31950+26−2640.8%+74.217.8%574
69.1%
80Micro-Max 4.8 (DM-PII)1942+20−2048.3%+12.126.1%865
57.6%
 Dabbaba 6.521939+22−2248.6%+10.820.3%777
64.1%
81Eia 0.31933+20−2047.1%+22.624.4%914
71.2%
 Wowl 1.3.71924+25−2546.8%+24.711.7%630
76.4%
 Carballo 0.41908+32−3335.8%+104.334.8%342
54.7%
 Dabbaba 7.491906+12−1147.8%+17.619.9%3152
52.6%
 Jabba 130320121905+31−3139.1%+98.016.7%442
59.3%
82ChessterfieldCL i5a1900+24−2440.6%+74.720.4%658
68.7%
 Micro-Max 4.81891+28−2836.7%+103.124.7%493
77.6%
83CDrill 1800 build 41877+23−2441.4%+72.915.5%741
100.0%
84RataAeroespacial 0.2.11814+13−1342.5%+64.712.9%2478
100.0%
85TSCP 1.811692+20−2047.4%+21.217.0%1072
83.7%
86Spartan 1.01674+25−2563.5%−103.021.2%624
67.4%
87Philemon C1667+25−2562.3%−95.422.0%626
59.4%
88VanillaChess 2.6g1662+25−2561.5%−88.820.2%624
100.0%
89PolarChess 1.31574+25−2549.3%+3.316.9%629
56.0%
90Darky 0.5d1571+24−2443.6%+55.120.9%675
98.7%
91MSCP 1.6h1529+25−2544.0%+50.815.1%628
99.8%
92Apep 1.011479+25−2541.2%+72.010.1%683
100.0%
93BACE 0.461378+23−2421.5%+256.79.8%1027
 

Results matrix

Open source 32-bit single-CPU engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.21.2 w42716 GTX10503441            
2ChessBrainVB 3.723062   7.5 − 8.5
+4−5=7
−56
        
3Stockfish 2.2.2 32-bit3050   26 − 28
+8−10=36
−38
19 − 13
+11−5=16
−13
  33 − 5
+28−0=10
+70
    
4IvanHoe 9.46h 32-bit3023 8.5 − 7.5
+5−4=7
+56
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
    
5Gull II b2 32-bit2982  13 − 19
+5−11=16
+13
10 − 21
+0−11=20
−54
        
6Protector 1.5.0 32-bit2947   10 − 20
+2−12=16
−21
        
7Toga II 3.02850       2 − 0
+2−0=0
+INF
    
8Booot 5.1.02843  5 − 33
+0−28=10
−70
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
9MinkoChess 1.3 32-bit2829       6.5 − 3.5
+4−1=5
+101
  7.5 − 2.5
+6−1=3
+106
 
10Glaurung 2.1 32-bit2765            
11Texel 1.01 32-bit2765       0 − 6
+0−6=0
−INF
2.5 − 7.5
+1−6=3
−106
   
12Scorpio 2.7 32-bit2749       9.5 − 13.5
+5−9=9
+44
    
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 single-CPU engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.21.2 w42716 GTX10503441 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2ChessBrainVB 3.7230620.0 88.1100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Stockfish 2.2.2 32-bit30500.011.9 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-bit29470.00.00.00.01.4 100.0100.0100.0100.0100.0100.0
7Toga II 3.028500.00.00.00.00.00.0 77.688.5100.0100.0100.0
8Booot 5.1.028430.00.00.00.00.00.022.4 80.5100.0100.0100.0
9MinkoChess 1.3 32-bit28290.00.00.00.00.00.011.519.5 100.099.9100.0
10Glaurung 2.1 32-bit27650.00.00.00.00.00.00.00.00.0 51.788.1
11Texel 1.01 32-bit27650.00.00.00.00.00.00.00.00.148.3 81.1
12Scorpio 2.7 32-bit27490.00.00.00.00.00.00.00.00.011.918.9 
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 August 17, 2019