CCRL 40/40
Downloads and Statistics
October 19, 2019
Testing summary:
Total: 1'092'341 games
played by 2'556 programs
149261 CPU days (X2 4600+)

White wins: 378'952 (34.7%)
Black wins: 281'710 (25.8%)
Draws: 431'679 (39.5%)
White score: 54.5%

Open source 32-bit engines

Comparing 347 engines!
93 best versions of selected engines played 3340 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 October 19, 2019 with Bayeselo based on 1'092'341 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 GTX10503462+29−2963.3%−80.063.6%324 
82.3%
 Lc0 0.21.2 w42716 GTX10503442+29−2964.7%−89.359.8%336
100.0%
2ChessBrainVB 3.72 4CPU3174+31−3145.2%+29.051.3%302
99.0%
 ChessBrainVB 3.68 4CPU3125+26−2649.2%+4.051.6%428
82.2%
 ChessBrainVB 3.66 4CPU3107+28−2854.2%−27.448.7%378
65.3%
 ChessBrainVB 3.743094+57−5757.1%−42.546.7%92
84.6%
 ChessBrainVB 3.723063+15−1551.2%−10.343.6%1423
86.0%
3Stockfish 2.2.2 32-bit3051+14−1461.4%−73.948.4%1619
57.6%
 Sting SF 4.63048+30−3045.4%+28.947.0%334
56.6%
 ChessBrainVB 3.703045+23−2351.1%−10.348.1%551
60.2%
 Stockfish 2.3.1 32-bit3041+17−1757.2%−45.050.5%1095
63.1%
 ChessBrainVB 3.663036+23−2351.5%−10.051.2%568
67.7%
 Sting SF 4.73029+22−2244.5%+32.650.5%632
49.5%
 Stockfish 2.1.1 32-bit3029+16−1663.8%−92.643.0%1362
57.8%
 ChessBrainVB 3.683026+21−2150.1%−1.054.3%654
55.2%
4IvanHoe 9.46h 32-bit3024+13−1455.8%−37.153.6%1668
84.7%
 Stockfish 2.0.1 32-bit3013+17−1765.6%−101.946.1%1106
77.0%
 Sting SF 2 32-bit3004+17−1751.3%−9.751.2%1062
57.3%
 Stockfish 1.9.1 32-bit3002+16−1665.7%−101.847.0%1208
84.6%
 Stockfish 1.8 32-bit2989+18−1867.4%−109.547.6%1030
52.9%
 ChessBrainVB 3.612988+27−2749.3%+4.347.7%421
61.9%
5Gull II b2 32-bit2983+18−1746.8%+19.052.6%960
57.7%
 ChessBrainVB 3.502980+24−2352.4%−15.546.7%553
52.2%
 Gull II 32-bit2979+18−1846.0%+22.657.1%854
55.1%
 Stockfish 1.7.1 32-bit2978+17−1766.5%−109.345.6%1198
96.9%
6Protector 1.5.0 32-bit2949+25−2545.2%+27.351.7%470
82.2%
 Stockfish 1.6.3 32-bit2935+17−1761.2%−71.248.1%1118
84.6%
7Toga II 3.0 4CPU2920+22−2345.6%+26.849.0%592
58.5%
 ChessBrainVB 3.312916+25−2552.6%−14.445.1%503
77.1%
 Toga II 1.4.1SE 4CPU2905+13−1348.5%+10.941.6%2041
97.9%
 Gull 1.0a 32-bit2886+12−1245.7%+30.343.8%2262
52.2%
 Toga II 1.4 beta5c 4CPU2886+18−1851.7%−12.345.8%996
71.7%
 Protector 1.4.0 32-bit2879+11−1145.4%+31.641.0%2762
56.3%
 Gull 1.1 32-bit2878+17−1747.4%+16.048.9%1051
54.4%
 Gull 1.2 32-bit2877+12−1245.2%+31.842.7%2278
55.7%
 ChessBrainVB 3.202875+25−2550.3%−3.147.4%489
58.5%
 Gull 0.12a 32-bit2871+21−2149.4%+2.944.8%717
66.9%
 Stockfish 1.5.1 32-bit2865+15−1555.1%−32.943.1%1506
90.0%
 Toga II 3.02851+16−1648.1%+11.342.9%1311
59.6%
 Gull 0.11a 32-bit2848+20−2146.8%+17.846.8%722
63.2%
8Booot 5.1.02844+10−1045.6%+30.641.5%3377
93.5%
 Protector 1.3.5 32-bit2831+15−1545.6%+27.845.9%1493
49.5%
 Stockfish 1.4 32-bit2831+16−1653.8%−24.848.9%1142
51.8%
9MinkoChess 1.3 32-bit2830+31−3146.0%+25.445.5%314
54.8%
 Cyclone xTreme Fury2828+19−1948.1%+10.848.8%811
53.6%
 Grapefruit 1.0 32-bit2827+9−948.4%+10.447.7%3991
48.6%
 Toga II 1.4.1SE2827+12−1250.0%+2.143.5%2395
55.7%
 Booot 5.02826+15−1545.2%+29.243.5%1342
55.1%
 Cyclone xTreme2825+13−1344.2%+37.545.8%2009
47.2%
 Protector 1.3.4 32-bit2825+15−1545.6%+28.746.2%1356
57.2%
 ChessBrainVB 3.032823+25−2549.9%−2.440.8%512
48.3%
 Cyclone 3.42823+21−2151.5%−8.547.2%685
54.4%
 Cyclone xTreme Rage2821+25−2548.4%+9.746.8%476
49.7%
 Toga II 1.4.1SE62821+23−2350.4%+0.645.1%567
63.1%
 Toga II 3.1.2SE2817+17−1752.9%−20.043.6%1051
52.6%
 Cyclone 2.22815+28−2849.1%+5.947.4%382
68.9%
 TheMadPrune 1.1.252806+24−2451.4%−9.748.0%504
53.7%
 Toga II 1.4 beta5c2804+24−2453.2%−20.546.2%558
54.5%
 Protector 1.3.1b 32-bit2803+23−2348.8%+8.443.6%608
65.3%
 Protector 1.3.2 32-bit2796+21−2145.7%+26.250.4%659
55.7%
 Stockfish 1.3.1 32-bit2794+25−2546.1%+25.041.4%512
61.2%
 Toga II 1.3.12790+12−1250.0%−1.042.1%2565
65.9%
 Grapefruit 1.0a32783+31−3248.1%+11.341.6%315
49.8%
 MinkoChess 1.2 32-bit2783+14−1445.6%+30.640.7%1765
53.5%
 Cyclone 1.02781+32−3251.0%−7.139.3%300
50.4%
 Stockfish 1.2 Default2781+21−2246.1%+24.044.5%679
77.6%
 Toga II 1.3.42768+28−2852.9%−18.942.1%411
54.4%
10‑11Glaurung 2.1 32-bit2766+18−1846.3%+24.839.5%1067
50.5%
10‑11Texel 1.01 32-bit2766+28−2852.2%−18.935.0%432
64.3%
 Toga II 1.2.1a 32-bit2760+12−1250.5%−6.839.2%2354
61.1%
 Glaurung 2.2 32-bit2756+24−2446.0%+24.941.4%565
64.5%
12Scorpio 2.7 32-bit2750+20−2049.0%+9.136.2%826
55.2%
 Stockfish 1.012748+31−3150.5%−6.043.8%322
55.0%
 MinkoChess 1.0 32-bit2745+32−3249.8%+1.341.1%314
56.6%
 MinkoChess 1.1 32-bit2741+27−2745.7%+26.740.9%455
55.6%
 Glaurung 2.0.1 32-bit2739+16−1747.2%+16.740.6%1196
58.5%
 Toga II 1.2 32-bit2736+25−2552.4%−19.037.2%511
55.3%
13Crafty 23.4 32-bit2734+19−1950.8%−5.840.4%861
52.7%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+115.536.7%607
51.9%
 Toga II 1.1a 32-bit2732+16−1652.8%−19.138.9%1275
61.1%
14Bison 9.11 32-bit2729+14−1448.5%+9.637.2%1810
74.7%
 Crafty 23.3 32-bit2717+32−3250.5%−4.541.4%309
68.8%
15Critter 0.42 32-bit2707+25−2551.9%−13.141.1%494
67.6%
 Booot 4.15.12698+30−3046.1%+23.342.1%359
50.7%
 Glaurung 2 epsilon/5 32-bit2697+27−2748.1%+11.035.8%441
49.7%
 Scorpio 2.6 32-bit2697+32−3249.8%+1.942.3%307
51.7%
 Crafty 23.2 32-bit2696+32−3247.8%+16.340.0%320
52.1%
 Fruit 2.12695+25−2551.5%−13.437.2%522
54.1%
 Booot 4.15.02694+14−1445.9%+26.444.9%1651
53.5%
16Vajolet 2.482692+31−3148.9%+5.633.9%348
59.6%
 Crafty 23.1 32-bit2688+18−1846.2%+24.542.2%970
54.5%
17Bobcat 3.25 32-bit2686+31−3146.9%+22.432.2%351
57.4%
18K2 0.952682+22−2247.7%+16.231.9%681
63.9%
 MinkoChess 0.8 32-bit2675+33−3351.3%−13.341.5%301
60.0%
 ChessBrainVB 2.052670+23−2349.6%+1.036.1%609
52.4%
19Daydreamer 1.75 32-bit2669+17−1747.7%+14.141.2%1157
50.3%
 Glaurung 1.2.1 Avalanche 32-bit2669+32−3252.1%−17.035.4%328
49.4%
 Scorpio 1.92669+30−3050.1%−3.834.0%362
52.0%
 Scorpio 1.842668+32−3247.2%+8.829.9%354
51.4%
 Booot 4.14.02667+20−2051.4%−9.641.8%765
57.2%
 Glaurung 1.2.1 Crusader 32-bit2664+32−3251.6%−14.928.6%343
48.7%
 Scorpio 2.5 32-bit2664+32−3249.5%+4.342.3%307
56.1%
 Scorpio 1.912662+13−1445.5%+29.836.7%1881
51.1%
 Vajolet 2.032661+24−2451.2%−11.233.8%562
52.7%
 Bobcat 2.75 32-bit2660+24−2447.7%+15.136.9%558
58.7%
 Scorpio 2.02b2656+30−3047.3%+16.937.2%355
50.7%
 Glaurung 1.2.1 32-bit2655+16−1646.4%+24.133.6%1265
56.5%
 Scorpio 2.0 32-bit2653+17−1745.9%+29.834.1%1256
51.4%
 Scorpio 2.1 32-bit2653+34−3449.1%+4.538.2%280
58.1%
20Cyrano 0.6b17 32-bit2649+14−1448.5%+9.140.7%1613
57.0%
 Scorpio 1.812645+36−3648.3%+17.031.7%271
54.5%
21Nawito 19062643+28−2850.2%+0.535.6%419
54.7%
 Scorpio 1.82641+20−2047.3%+18.535.7%869
52.4%
22DanaSah 7.32640+14−1449.4%+4.934.8%1709
55.9%
23RedQueen 1.0.0 32-bit2638+24−2451.6%−7.835.9%576
51.9%
 DanaSah 7.92637+19−2049.2%+5.027.5%946
50.9%
 Scorpio 2.05b2637+32−3250.5%−2.340.8%306
53.7%
 Glaurung 1.0.2 32-bit2635+17−1747.4%+20.032.0%1209
60.0%
 Crafty 23.0 32-bit2631+29−2949.9%+1.241.3%380
51.0%
24Cheng3 1.07 32-bit2630+26−2646.6%+22.831.7%517
52.7%
25Delfi 5.12629+25−2646.3%+23.733.9%522
55.1%
 Glaurung 1.1 32-bit2626+33−3348.8%+10.832.1%324
54.4%
26Arasan 13.4 32-bit2624+30−3049.7%+1.334.8%374
57.6%
 Bison 9.62620+23−2351.3%−13.533.9%635
51.6%
27Phalanx XXV2619+15−1549.6%+2.632.4%1493
55.4%
28Caligula 0.9g2618+22−2255.0%−37.829.2%698
49.8%
 DanaSah 7.02618+26−2651.3%−10.137.8%479
50.4%
 Arasan 14.1 32-bit2617+33−3349.0%+5.033.3%309
51.3%
 Bison 9.8 32-bit2617+32−3349.8%−1.533.7%309
51.6%
 K2 0.912616+15−1549.0%+6.932.9%1497
65.3%
 Arasan 13.2 32-bit2609+32−3251.0%−6.038.5%312
56.7%
 DanaSah 6.502605+22−2249.7%+1.336.0%691
52.2%
 Scorpio 1.72604+32−3249.7%+0.438.1%310
53.3%
 DanaSah 6.802603+28−2850.5%−2.840.3%412
56.7%
 Delfi 5.02600+20−2047.5%+14.937.1%805
50.2%
29Sloppy 0.2.2 32-bit2600+14−1448.1%+11.737.8%1775
56.5%
 Nawito 18122598+20−2048.2%+12.333.0%896
57.8%
 Crafty 22.8 32-bit2594+33−3347.9%+12.236.1%305
52.8%
30CuckooChess 1.12 32-bit2592+26−2648.8%+9.629.9%521
59.5%
 Booot 4.13.12588+28−2849.4%+1.339.9%404
51.3%
31Betsabe II 1.962587+26−2652.2%−13.827.6%515
50.8%
 RedQueen 1.1.1 32-bit2586+32−3350.6%+0.135.7%308
56.2%
 K2 0.872584+18−1749.0%+5.534.7%1102
47.8%
 Nawito 1.1d2584+28−2850.2%−1.936.7%401
56.3%
 Arasan 13.1 32-bit2581+32−3347.8%+14.336.8%302
49.4%
 Crafty 22.4 32-bit2581+32−3248.2%+11.337.3%308
57.7%
 RedQueen 0.9.8 32-bit2577+22−2249.6%+5.627.7%730
52.9%
 Cheng3 1.04 32-bit2576+32−3250.2%−1.734.0%326
59.1%
 Bobcat 20110414 32-bit2571+31−3149.4%+2.141.5%325
52.2%
 DanaSah 5.072570+17−1749.9%−1.037.2%1191
48.8%
 Scorpio 2.2 32-bit2570+28−2847.1%+20.735.3%417
56.9%
32Brutus 8.05 32-bit2567+17−1749.1%+4.436.8%1142
50.5%
 Cyrano 0.52567+32−3150.5%−2.535.9%326
52.3%
 CuckooChess 1.11 32-bit2566+29−2950.4%−3.034.1%384
51.8%
 Arasan 12.3 32-bit2565+24−2446.8%+23.730.0%597
52.6%
 Cheng3 1.06 32-bit2564+30−3047.3%+15.635.9%357
53.4%
 Bobcat 20110220 32-bit2562+33−3348.3%+10.034.9%301
53.6%
 Cheng3 1.05 32-bit2560+32−3248.0%+14.333.6%324
51.4%
 Arasan 11.7 32-bit2559+32−3249.2%+6.036.0%308
55.8%
 DanaSah 4.882556+22−2250.5%−3.433.9%676
58.4%
 DanaSah 5.002552+29−2948.5%+9.132.2%395
54.2%
 Crafty 21.6 32-bit2550+34−3447.8%+12.830.1%302
62.4%
 Betsabe II 1.842544+14−1448.2%+14.025.6%1855
52.4%
 Crafty 21.5 32-bit2543+32−3248.3%+13.128.5%344
51.1%
 DanaSah 4.662542+26−2648.1%+11.635.2%475
52.2%
 DanaSah 4.602541+25−2548.5%+10.535.1%513
50.0%
33Tucano 1.042541+30−3047.2%+17.336.5%359
53.2%
34Rodent 0.102539+33−3351.1%−10.131.9%313
51.7%
 Crafty 22.0 32-bit2538+33−3348.5%+10.231.9%304
51.4%
 Phalanx XXIV2537+20−2048.7%+8.027.3%887
55.5%
 Caligula 0.82535+19−2049.1%+7.226.3%938
54.5%
 K2 0.832534+27−2751.7%−12.733.3%474
50.7%
 Arasan 11.6 32-bit2533+33−3351.8%−12.432.6%304
53.0%
 Arasan 12.1 32-bit2531+32−3351.4%−11.627.3%326
50.0%
 CuckooChess 1.102531+31−3151.5%−11.334.5%330
52.4%
35Nemeton 1.8 4CPU2530+27−2749.9%+2.127.2%496
56.5%
 DanaSah 4.242527+17−1751.5%−10.336.9%1128
67.2%
36EXchess 6.10b 32-bit2519+33−3249.4%+3.532.5%314
53.2%
 Crafty 20.14 32-bit2517+27−2747.4%+19.933.4%482
50.9%
 DanaSah 5.062517+33−3349.7%−0.034.6%309
52.5%
 Brutus 7.02b2515+19−1852.0%−15.535.4%994
54.0%
 DanaSah 4.452514+29−2949.9%+1.338.4%378
54.7%
 Arasan 10.0 32-bit2511+33−3349.0%+6.328.8%309
53.2%
 CuckooChess 1.092509+33−3351.6%−12.826.8%317
52.0%
 Betsabe II 1.752508+22−2251.8%−14.423.3%730
50.7%
 Crafty 20.13 32-bit2508+33−3347.8%+16.134.1%302
57.0%
 DanaSah 4.372504+32−3248.9%+7.038.6%311
52.3%
 Crafty 20.11 32-bit2502+33−3349.8%+3.830.0%307
49.5%
37Pawny 0.3.1 32-bit2502+33−3348.9%+8.628.7%310
52.8%
 Arasan 11.3 32-bit2501+33−3348.7%+7.730.9%301
59.4%
 Arasan 10.32496+23−2445.6%+31.930.6%634
52.3%
 Cheng3 1.03 32-bit2495+33−3350.5%−5.230.7%316
51.2%
38GreKo 9.2 32-bit2494+33−3349.7%+1.632.9%304
53.9%
 K2 0.752492+23−2352.4%−18.732.8%634
58.0%
 Arasan 11.4 32-bit2488+34−3449.0%+7.728.5%305
50.0%
39DoubleCheck 3.1 32-bit2488+34−3451.0%−8.524.8%306
50.5%
 GreKo 8.2 32-bit2487+26−2649.1%+5.933.8%506
60.0%
 Arasan 10.2 32-bit2483+25−2545.4%+35.127.8%594
51.9%
40Pepito 1.59 32-bit2482+24−2449.6%+1.034.0%583
59.2%
41BBChess 1.3b2478+24−2450.2%−1.238.7%555
54.7%
 Nemeton 1.812476+26−2648.0%+12.136.1%468
56.0%
 BBChess 1.3a2473+25−2551.6%−12.830.5%528
54.1%
 Arasan 10.42471+20−2145.5%+32.630.0%850
70.4%
 Betsabe II 1.662463+22−2246.7%+24.228.4%718
51.5%
42Carballo 1.32462+25−2547.4%+18.131.0%561
52.2%
 Pawny 0.3 32-bit2461+33−3349.2%+3.734.3%303
54.8%
 Carballo 1.22459+24−2453.6%−24.029.4%632
48.8%
 Nemeton 1.82459+17−1751.9%−15.327.3%1250
67.0%
 Nemeton 1.512453+22−2249.8%−0.728.8%732
53.1%
 Arasan 9.52451+36−3647.5%+14.823.8%281
50.4%
 Cyrano 0.32451+34−3449.2%+4.423.8%311
51.3%
 GreKo 8.0 32-bit2450+29−2950.6%−3.729.7%411
64.9%
 Betsabe II 1.472443+20−2049.9%+2.225.3%902
49.8%
43Typhoon 1.00-3482443+33−3348.5%+11.729.2%325
52.4%
 Cheng3 1.02b2442+33−3350.2%−4.330.4%312
51.6%
 K2 0.792441+29−2947.6%+17.131.1%396
52.3%
 Arasan 10.12440+28−2845.5%+37.428.5%480
51.3%
 Nemeton 1.62439+24−2446.4%+25.031.8%604
58.5%
 Critter 0.382435+32−3251.1%−9.233.4%320
49.8%
 Typhoon 1.00-3582435+17−1748.2%+11.631.1%1220
53.5%
44Murka 2 32-bit2433+30−3047.4%+18.726.3%400
57.4%
 GreKo 7.2 32-bit2429+33−3348.4%+9.635.5%304
51.3%
 DanaSah 3.632428+27−2748.4%+10.732.3%477
54.1%
 Arasan 9.22426+34−3446.1%+27.830.9%304
52.9%
 Nemeton 1.612424+28−2847.3%+18.232.3%421
56.2%
 DanaSah 2.852421+33−3349.0%+8.333.8%305
52.7%
 Nemeton 1.72420+18−1849.6%+0.225.2%1141
51.3%
45Kiwi 0.6d 32-bit2419+19−1948.3%+10.127.0%975
52.7%
 K2 0.712418+28−2851.4%−9.627.6%439
58.7%
 Pawny 0.2.2 32-bit2413+34−3448.8%+8.728.6%301
54.9%
46Diablo 0.5.12411+18−1848.7%+8.132.3%1072
49.8%
 Typhoon 1.00-3142411+34−3450.2%−0.423.0%305
56.2%
47RomiChess P3k 32-bit2408+19−1949.2%+4.933.0%906
61.9%
48Amy 0.87b2403+24−2449.4%+6.625.7%610
49.2%
 Pawny 0.2.1 32-bit2403+31−3147.1%+20.025.5%373
51.2%
 Cyrano 0.2f2402+32−3248.4%+14.432.9%316
53.0%
 Pawny 0.2 32-bit2401+29−2949.2%+5.230.8%396
56.0%
49Simplex 0.9.8 32-bit2397+30−3049.0%+5.931.2%359
57.5%
 Phalanx XXII2394+25−2450.1%−1.423.5%595
68.9%
 DoubleCheck 2.5.4 32-bit2383+33−3350.5%−3.328.6%318
50.9%
 RomiChess P3L 32-bit2383+33−3346.3%+28.233.4%314
56.7%
 GreKo 6.302379+33−3348.0%+13.431.6%307
49.6%
50Thor's Hammer 2.28 32-bit2379+23−2347.9%+15.729.4%676
59.2%
 Carballo 1.1.12374+32−3247.5%+19.527.4%340
51.6%
 Typhoon 1.00-2852373+34−3449.7%+1.819.5%308
52.8%
51Ifrit m1.5 32-bit2372+27−2746.6%+24.229.1%453
51.4%
 GreKo 7.02371+28−2846.3%+28.727.8%454
51.9%
 GreKo 6.252370+33−3348.4%+10.731.6%304
60.4%
 GreKo 6.52364+26−2648.9%+7.631.5%495
49.9%
 Phalanx XXIII2364+32−3246.3%+24.224.8%351
66.1%
 Nemeton 1.412356+25−2547.6%+18.233.7%514
52.5%
 K2 0.672355+23−2352.7%−18.129.7%677
50.9%
 Nemeton 1.32354+31−3152.1%−17.433.5%340
59.0%
 GreKo 5.92349+24−2446.4%+28.429.3%621
55.2%
 Ifrit m1.6 32-bit2347+33−3347.4%+14.734.8%310
58.4%
52Xpdnt 0907042342+33−3351.8%−13.829.0%314
62.0%
 Daydreamer 1.52336+22−2252.1%−19.234.3%722
60.6%
 Nemeton 1.12331+29−2947.5%+16.531.3%393
55.1%
53Amundsen 0.802328+17−1749.1%+7.329.2%1269
60.4%
 Simplex 0.9.7 32-bit2324+31−3148.6%+9.325.4%370
70.5%
 GreKo 5.52311+33−3350.7%−5.333.1%305
53.9%
 Nemeton 1.22309+26−2646.3%+23.728.7%516
66.2%
54Natwarlal 0.142302+19−1949.1%+6.625.2%1027
53.4%
 Xpdnt 0809272301+29−2951.2%−8.924.8%428
50.3%
 Brutus 6.12300+34−3447.9%+12.325.0%308
62.6%
 Natwarlal 0.122293+34−3449.4%+7.026.6%308
49.9%
 Nemeton 1.02293+30−3052.6%−18.427.4%383
49.7%
 Pawny 0.1.62293+33−3352.1%−15.724.4%328
71.1%
 Brutus 5.42279+34−3450.7%−4.029.1%302
54.2%
 GreKo 5.2.52277+35−3550.9%−8.827.0%289
79.0%
55Sungorus 1.4 32-bit2260+21−2148.2%+12.226.5%820
60.1%
 Sungorus 1.3 32-bit2255+34−3452.7%−16.824.3%301
55.6%
56RattateChess 1.0 Nosferatu2252+19−1949.9%+0.828.0%1008
51.2%
 Brutus 6.02251+35−3548.8%+5.722.6%301
52.0%
 EXchess 5.01b 32-bit2250+29−2946.5%+21.431.2%401
74.3%
57Feuerstein 0.4.6.12238+19−1949.1%+6.428.5%944
54.0%
 Betsabe II 1.08c2236+35−3549.2%+8.521.0%300
71.5%
 Vajolet 1.62.12222+34−3447.7%+12.528.4%310
56.0%
58Bagatur 1.2d 32-bit2219+34−3446.8%+19.327.2%298
51.7%
59Beowulf 2.4a 32-bit2218+20−2053.8%−29.525.4%954
66.3%
60ZCT 0.3.24512210+27−2749.4%+4.425.5%478
52.7%
 Betsabe II 1.09c2209+34−3548.2%+11.919.8%308
57.3%
61Jazz 501 32-bit2205+29−2952.5%−18.228.5%418
52.7%
 MORA 1.1.02201+102−9957.4%−55.326.5%34
50.1%
 RattateChess Bologna 20072201+25−2551.3%−9.625.0%588
63.0%
 Carballo 0.82195+22−2247.2%+19.630.6%706
50.4%
 Jazz 444 32-bit2195+32−3250.3%−3.025.2%353
62.2%
 Amundsen 0.65.12188+34−3448.7%+7.423.9%305
50.7%
 Feuerstein 0.4.5.22187+37−3749.2%+9.024.7%255
50.3%
 K2 0.572187+33−3347.0%+22.525.8%314
66.7%
 RedQueen 0.62177+30−3046.1%+27.819.9%418
54.4%
 Feuerstein 0.4.62174+38−3850.6%−1.618.5%259
52.7%
 Sungorus 1.22173+26−2652.4%−18.028.7%499
51.2%
 MORA 1.0.02171+90−9145.5%+35.018.2%44
51.3%
 Pawny 0.132170+32−3252.2%−17.820.1%363
53.8%
 Simplex 0.9.3 32-bit2167+34−3449.5%+4.325.7%303
63.3%
 Betsabe II 1.052159+34−3445.2%+33.324.2%314
53.7%
62OliThink 5.1.92157+30−3046.6%+27.321.3%417
52.0%
 Bagatur 1.2b 32-bit2156+33−3446.2%+28.129.1%306
49.3%
63Chesley r323 32-bit2156+24−2449.0%+7.921.0%625
62.6%
 Ifrit j4.32150+28−2845.9%+28.329.5%440
69.1%
 K2 0.43f2139+33−3348.2%+11.921.3%338
53.6%
64Prophet 2.0 32-bit2137+19−1949.3%+4.924.0%1025
55.2%
65Parrot 07.07.222136+19−1947.3%+19.423.0%1047
51.4%
 Parrot 07.01.162135+31−3146.6%+25.821.1%394
69.4%
 Ifrit j4.22123+34−3445.5%+31.426.4%303
67.9%
66ChessKISS 1.3a 32-bit2112+32−3347.0%+18.430.3%320
53.8%
 DoubleCheck 2.1 32-bit2110+33−3348.1%+11.921.9%342
74.0%
 Carballo 0.52096+23−2347.1%+20.621.9%694
78.0%
 Ifrit j2.92080+34−3448.2%+11.921.3%314
51.0%
 Feuerstein 0.4.5.12079+38−3848.0%+13.025.8%248
52.7%
67AdroitChess 0.42078+24−2357.8%−70.514.6%776
92.4%
 ZCT 0.3.25002049+32−3246.2%+29.416.8%381
53.9%
68PLP 16615712047+22−2246.1%+27.724.3%760
57.8%
69Jabba 1.0 32-bit2044+21−2144.8%+38.325.0%839
85.8%
70Faile 1.4.42026+23−2355.2%−27.722.1%774
53.5%
71Slibo 0.5.12025+26−2645.5%+33.619.4%573
91.3%
72BibiChess 0.52000+24−2445.7%+31.726.5%607
60.8%
73Cupcake 1.01995+31−3145.5%+31.022.7%401
55.2%
74Schola 1.1.0 32-bit1992+26−2745.6%+32.425.1%514
68.0%
 AdroitChess 0.31983+25−2544.2%+46.518.5%626
85.0%
75Dabbaba 5.671965+25−2545.5%+33.026.4%557
65.8%
76Sissa 2.01957+23−2353.1%−22.330.1%678
55.8%
77Monik 2.2.3 32-bit1955+30−3044.4%+38.827.1%395
51.0%
 Feuerstein 0.4.4.21954+29−2941.2%+92.018.7%518
52.5%
78Wowl 1.3.81953+26−2745.4%+35.013.3%573
54.5%
79Smash 1.0.31950+26−2740.8%+74.617.8%574
69.1%
80Micro-Max 4.8 (DM-PII)1942+20−2048.3%+12.626.1%865
57.8%
 Dabbaba 6.521939+22−2248.6%+11.420.3%777
64.0%
81Eia 0.31934+20−2047.1%+22.124.4%914
71.1%
 Wowl 1.3.71924+25−2546.8%+25.211.7%630
76.4%
 Carballo 0.41909+32−3335.8%+103.834.8%342
54.7%
 Dabbaba 7.491907+12−1247.8%+17.219.9%3152
52.6%
 Jabba 130320121906+31−3139.1%+97.516.7%442
59.2%
82ChessterfieldCL i5a1901+24−2540.6%+74.220.4%658
68.7%
 Micro-Max 4.81892+28−2836.7%+102.524.7%493
77.5%
83CDrill 1800 build 41877+23−2441.4%+73.515.5%741
100.0%
84RataAeroespacial 0.2.11815+13−1342.5%+64.112.9%2478
100.0%
85TSCP 1.811692+20−2047.4%+21.617.0%1072
83.8%
86Spartan 1.01675+25−2563.5%−103.421.2%624
67.4%
87Philemon C1667+25−2562.3%−94.822.0%626
59.4%
88VanillaChess 2.6g1663+25−2561.5%−89.220.2%624
100.0%
89PolarChess 1.31575+25−2549.3%+2.916.9%629
57.0%
90Darky 0.5d1571+24−2443.5%+56.220.8%677
98.7%
91MSCP 1.6h1530+25−2544.0%+50.415.1%628
99.8%
92Apep 1.011479+25−2541.2%+72.610.1%683
100.0%
93BACE 0.461378+23−2421.5%+257.19.8%1027
 

Results matrix

Open source 32-bit engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.22.0 T40B.4-160 GTX10503462            
2ChessBrainVB 3.72 4CPU3174            
3Stockfish 2.2.2 32-bit3051   26 − 28
+8−10=36
−38
19 − 13
+11−5=16
−13
  33 − 5
+28−0=10
+70
    
4IvanHoe 9.46h 32-bit3024  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
+59
    
5Gull II b2 32-bit2983  13 − 19
+5−11=16
+13
10 − 21
+0−11=20
−54
        
6Protector 1.5.0 32-bit2949   10 − 20
+2−12=16
−22
        
7Toga II 3.0 4CPU2920       1.5 − 0.5
+1−0=1
+66
    
8Booot 5.1.02844  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
9MinkoChess 1.3 32-bit2830       6.5 − 3.5
+4−1=5
+101
  7.5 − 2.5
+6−1=3
+106
 
10Glaurung 2.1 32-bit2766            
11Texel 1.01 32-bit2766       0 − 6
+0−6=0
−INF
2.5 − 7.5
+1−6=3
−106
   
12Scorpio 2.7 32-bit2750       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 engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.22.0 T40B.4-160 GTX10503462 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2ChessBrainVB 3.72 4CPU31740.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Stockfish 2.2.2 32-bit30510.00.0 99.8100.0100.0100.0100.0100.0100.0100.0100.0
4IvanHoe 9.46h 32-bit30240.00.00.2 100.0100.0100.0100.0100.0100.0100.0100.0
5Gull II b2 32-bit29830.00.00.00.0 98.6100.0100.0100.0100.0100.0100.0
6Protector 1.5.0 32-bit29490.00.00.00.01.4 95.2100.0100.0100.0100.0100.0
7Toga II 3.0 4CPU29200.00.00.00.00.04.8 100.0100.0100.0100.0100.0
8Booot 5.1.028440.00.00.00.00.00.00.0 80.1100.0100.0100.0
9MinkoChess 1.3 32-bit28300.00.00.00.00.00.00.019.9 100.099.9100.0
10Glaurung 2.1 32-bit27660.00.00.00.00.00.00.00.00.0 50.587.3
11Texel 1.01 32-bit27660.00.00.00.00.00.00.00.00.149.5 81.1
12Scorpio 2.7 32-bit27500.00.00.00.00.00.00.00.00.012.718.9 
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 October 19, 2019