CCRL 40/15
Downloads and Statistics
February 26, 2020
Testing summary:
Total: 1'125'289 games
played by 2'622 programs

White wins: 389'459 (34.6%)
Black wins: 288'887 (25.7%)
Draws: 446'943 (39.7%)
White score: 54.5%

Open source 32-bit 1-2-CPU engines

Comparing 344 engines!
95 best versions of selected engines played 3525 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 February 26, 2020 with Bayeselo based on 1'125'289 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 GTX10503465+21−2162.1%−76.163.9%642 
89.8%
 Lc0 0.21.2 w42716 GTX10503442+29−2964.7%−89.459.8%336
100.0%
2ChessBrainVB 3.743070+19−1949.3%+2.748.9%854
73.3%
 ChessBrainVB 3.723062+15−1551.2%−10.043.6%1423
87.3%
3Stockfish 2.2.2 32-bit3050+14−1461.4%−74.048.4%1619
56.0%
 Sting SF 4.63047+30−3045.4%+29.347.0%334
56.5%
 ChessBrainVB 3.703044+23−2351.1%−9.948.1%551
62.3%
 Stockfish 2.3.1 32-bit3040+17−1757.2%−45.150.5%1095
60.7%
 ChessBrainVB 3.663036+23−2351.5%−10.351.2%568
68.1%
 Sting SF 4.73028+22−2244.5%+33.150.5%632
51.4%
 Stockfish 2.1.1 32-bit3028+16−1663.8%−92.743.0%1362
55.6%
 ChessBrainVB 3.683026+21−2150.1%−1.454.3%654
57.8%
4IvanHoe 9.46h 32-bit3023+13−1455.8%−37.253.6%1668
84.0%
 Stockfish 2.0.1 32-bit3012+17−1765.3%−99.646.2%1122
78.0%
 Sting SF 2 32-bit3003+17−1751.3%−9.851.2%1062
59.7%
 Stockfish 1.9.1 32-bit3000+16−1665.2%−98.247.0%1224
79.6%
 Stockfish 1.8 32-bit2990+17−1766.4%−103.847.5%1084
55.1%
 ChessBrainVB 3.612988+27−2749.3%+3.947.7%421
64.0%
5Gull II b2 32-bit2982+18−1746.8%+18.952.6%960
55.7%
 ChessBrainVB 3.502980+23−2352.4%−16.146.7%553
54.3%
 Gull II 32-bit2978+18−1846.0%+22.557.1%854
53.5%
 Stockfish 1.7.1 32-bit2977+17−1666.0%−105.945.7%1232
97.2%
6Protector 1.5.0 32-bit2948+25−2545.2%+27.351.7%470
82.0%
 Stockfish 1.6.3 32-bit2934+17−1761.2%−71.348.1%1118
88.3%
 ChessBrainVB 3.312915+25−2552.6%−14.045.1%503
98.3%
 Gull 1.0a 32-bit2885+12−1245.7%+30.343.8%2262
79.3%
 Protector 1.4.0 32-bit2879+11−1145.6%+29.641.0%2794
57.6%
 Gull 1.1 32-bit2877+17−1747.4%+16.148.9%1051
51.7%
 Gull 1.2 32-bit2876+12−1245.6%+30.442.6%2306
57.0%
 ChessBrainVB 3.202874+25−2550.3%−2.847.4%489
58.6%
 Gull 0.12a 32-bit2870+21−2149.4%+3.144.8%717
66.3%
 Stockfish 1.5.1 32-bit2865+15−1555.1%−33.743.0%1514
90.5%
7Toga II 3.02850+16−1648.1%+11.442.9%1311
59.6%
 Gull 0.11a 32-bit2847+20−2146.8%+18.046.8%722
61.3%
8Booot 5.1.02844+10−1045.8%+29.041.4%3401
94.4%
 Protector 1.3.5 32-bit2830+15−1545.6%+27.845.9%1493
51.1%
9MinkoChess 1.3 32-bit2829+31−3146.0%+25.745.5%314
50.8%
 Stockfish 1.4 32-bit2829+16−1653.5%−23.248.9%1162
56.5%
 Cyclone xTreme Fury2827+19−1948.1%+10.848.8%811
53.6%
 Grapefruit 1.0 32-bit2826+9−948.4%+10.447.7%3991
48.5%
 Toga II 1.4.1SE2826+12−1250.0%+2.143.5%2395
55.1%
 Booot 5.02825+15−1545.2%+29.343.5%1342
55.6%
 Cyclone xTreme2824+13−1344.2%+37.645.8%2009
47.5%
 Protector 1.3.4 32-bit2824+15−1545.6%+28.746.2%1356
56.1%
 ChessBrainVB 3.032822+25−2549.9%−2.040.8%512
49.3%
 Cyclone 3.42822+21−2151.5%−8.547.2%685
54.3%
 Cyclone xTreme Rage2820+25−2548.4%+9.846.8%476
50.1%
 Toga II 1.4.1SE62820+23−2350.4%+0.445.1%567
63.4%
 Toga II 3.1.2SE2815+17−1752.9%−19.343.6%1051
52.0%
 Cyclone 2.22814+28−2849.1%+5.947.4%382
68.7%
 TheMadPrune 1.1.252805+24−2451.4%−9.748.0%504
53.4%
 Toga II 1.4 beta5c2804+24−2453.2%−21.346.2%558
55.1%
 Protector 1.3.1b 32-bit2801+23−2348.8%+9.443.6%608
65.1%
 Protector 1.3.2 32-bit2795+21−2145.7%+26.250.4%659
56.1%
 Stockfish 1.3.1 32-bit2793+25−2546.1%+25.041.4%512
60.4%
 Toga II 1.3.12789+11−1250.0%−0.942.1%2565
66.1%
 Grapefruit 1.0a32782+31−3248.1%+11.441.6%315
49.8%
 MinkoChess 1.2 32-bit2782+14−1445.6%+30.640.7%1765
53.7%
 Cyclone 1.02780+32−3251.0%−7.139.3%300
50.4%
 Stockfish 1.2 Default2780+21−2146.1%+24.044.5%679
77.0%
 Toga II 1.3.42767+28−2852.9%−18.642.1%411
55.1%
10‑11Glaurung 2.1 32-bit2765+18−1846.3%+24.839.5%1067
50.3%
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%−6.539.2%2354
62.2%
 Glaurung 2.2 32-bit2755+24−2446.0%+24.841.4%565
64.0%
12Scorpio 2.7 32-bit2749+20−2049.0%+9.136.2%826
55.4%
 Stockfish 1.012747+31−3150.5%−6.043.8%322
54.7%
 MinkoChess 1.0 32-bit2744+32−3249.8%+1.541.1%314
56.8%
 MinkoChess 1.1 32-bit2740+27−2745.7%+26.740.9%455
55.3%
 Glaurung 2.0.1 32-bit2738+17−1747.2%+17.040.6%1196
58.2%
 Toga II 1.2 32-bit2735+25−2552.4%−18.837.2%511
55.9%
13Crafty 23.4 32-bit2733+19−1950.8%−5.740.4%861
54.9%
 Toga II 1.1a 32-bit2731+16−1652.8%−18.938.9%1275
61.6%
14Bison 9.11 32-bit2728+14−1448.5%+9.737.2%1810
74.8%
 Crafty 23.3 32-bit2716+32−3250.5%−4.641.4%309
68.7%
15Critter 0.42 32-bit2706+25−2551.9%−13.041.1%494
64.0%
16DanaSah 8.32699+25−2552.5%−21.039.7%524
55.0%
 Booot 4.15.12697+30−3046.1%+23.542.1%359
50.4%
 Glaurung 2 epsilon/5 32-bit2696+27−2748.1%+11.335.8%441
51.9%
 Crafty 23.2 32-bit2695+32−3247.8%+16.440.0%320
51.4%
 Fruit 2.12695+25−2551.5%−14.037.2%522
54.9%
 Booot 4.15.02693+14−1445.9%+26.644.9%1651
49.4%
 Scorpio 2.6 32-bit2693+31−3148.9%+7.841.7%321
53.5%
17Vajolet 2.482691+31−3148.9%+5.533.9%348
59.3%
 Crafty 23.1 32-bit2687+18−1846.2%+24.642.2%970
54.5%
18Bobcat 3.25 32-bit2685+31−3146.9%+22.532.2%351
68.3%
 MinkoChess 0.8 32-bit2674+33−3351.3%−13.241.5%301
51.6%
19K2 0.952673+20−2047.2%+18.831.7%829
60.7%
 ChessBrainVB 2.052669+23−2349.6%+1.336.1%609
52.6%
20Daydreamer 1.75 32-bit2668+17−1747.7%+14.241.2%1157
49.6%
 Glaurung 1.2.1 Avalanche 32-bit2668+32−3252.1%−16.735.4%328
49.2%
 Scorpio 1.92668+30−3150.1%−3.334.0%362
52.5%
 Scorpio 1.842667+32−3247.2%+9.129.9%354
51.4%
 Booot 4.14.02666+20−2051.4%−9.241.8%765
55.8%
 Scorpio 2.5 32-bit2664+32−3249.5%+3.542.3%307
50.9%
 Glaurung 1.2.1 Crusader 32-bit2663+32−3251.6%−14.528.6%343
54.8%
 Scorpio 1.912661+14−1445.5%+30.236.7%1881
51.4%
 Vajolet 2.032660+24−2451.2%−11.133.8%562
52.8%
 Bobcat 2.75 32-bit2659+24−2447.7%+15.136.9%558
61.5%
 Glaurung 1.2.1 32-bit2655+16−1746.4%+23.433.6%1265
49.7%
 Scorpio 2.02b2655+30−3047.3%+17.237.2%355
54.8%
 Scorpio 2.0 32-bit2653+17−1745.9%+29.234.1%1256
51.7%
 Scorpio 2.1 32-bit2652+34−3449.1%+4.738.2%280
58.6%
21Cyrano 0.6b17 32-bit2648+14−1448.6%+8.640.6%1641
58.4%
 Scorpio 1.812644+34−3449.8%+5.231.4%299
58.8%
 DanaSah 7.32640+14−1449.4%+4.534.8%1709
48.4%
 Scorpio 1.82640+19−2047.3%+18.835.7%869
57.6%
22RedQueen 1.0.0 32-bit2637+24−2451.6%−7.635.9%576
53.5%
 DanaSah 7.92636+20−2049.2%+4.627.3%944
49.3%
 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
58.3%
23Nawito 19062631+25−2549.9%+2.137.8%529
53.5%
24Cheng3 1.07 32-bit2630+26−2646.6%+22.031.7%517
49.0%
 Crafty 23.0 32-bit2630+29−2949.9%+1.441.3%380
53.5%
25Delfi 5.12628+25−2646.3%+24.133.9%522
54.6%
 Glaurung 1.1 32-bit2626+33−3348.8%+10.432.1%324
54.9%
26Arasan 13.4 32-bit2623+30−3049.7%+1.534.8%374
57.6%
 Bison 9.62619+23−2351.3%−13.333.9%635
51.6%
27Phalanx XXV2619+15−1549.6%+1.832.4%1493
54.2%
 DanaSah 7.02617+26−2651.3%−9.737.8%479
51.1%
 Arasan 14.1 32-bit2616+33−3349.0%+5.033.3%309
51.5%
 Bison 9.8 32-bit2616+32−3349.8%−1.433.7%309
49.9%
 K2 0.912616+15−1549.0%+6.732.9%1497
58.5%
28Caligula 0.9g2613+22−2253.9%−29.529.3%734
59.3%
 Arasan 13.2 32-bit2608+32−3251.0%−5.738.5%312
56.8%
 DanaSah 6.502605+22−2249.7%+0.636.0%691
51.8%
 Scorpio 1.72604+32−3249.7%−0.138.1%310
53.6%
 DanaSah 6.802602+28−2850.5%−2.540.3%412
56.6%
 Delfi 5.02599+20−2047.5%+15.237.1%805
50.1%
29Sloppy 0.2.2 32-bit2599+14−1448.1%+12.237.8%1775
52.9%
 Nawito 18122598+20−2048.3%+12.133.0%892
54.7%
 Crafty 22.8 32-bit2596+32−3248.7%+6.735.9%315
58.0%
30CuckooChess 1.12 32-bit2592+25−2548.8%+8.729.8%531
56.3%
31Betsabe II 1.962589+24−2451.4%−8.126.4%626
53.9%
 Booot 4.13.12587+28−2849.4%+1.539.9%404
52.7%
 RedQueen 1.1.1 32-bit2585+32−3350.6%+0.035.7%308
52.8%
 Nawito 1.1d2584+28−2850.2%−2.536.7%401
52.4%
 K2 0.872583+18−1749.0%+5.834.7%1102
55.8%
 Crafty 22.4 32-bit2580+32−3248.1%+11.937.7%318
54.1%
 Arasan 13.1 32-bit2578+32−3247.9%+14.037.5%312
51.8%
 RedQueen 0.9.8 32-bit2577+22−2249.6%+5.127.7%730
54.2%
 Cheng3 1.04 32-bit2575+32−3250.2%−1.834.0%326
58.7%
 Bobcat 20110414 32-bit2570+31−3149.4%+2.341.5%325
50.4%
 Scorpio 2.2 32-bit2570+28−2847.1%+20.135.3%417
51.2%
 DanaSah 5.072569+17−1749.9%−0.737.2%1191
57.0%
32Brutus 8.05 32-bit2567+17−1749.1%+4.036.8%1142
51.8%
 Cyrano 0.52566+32−3150.5%−2.535.9%326
52.9%
 Arasan 12.3 32-bit2565+24−2446.8%+23.330.0%597
48.6%
 CuckooChess 1.11 32-bit2565+29−2950.4%−2.534.1%384
53.1%
 Cheng3 1.06 32-bit2564+30−3047.3%+15.535.9%357
53.3%
 Bobcat 20110220 32-bit2562+32−3248.7%+7.635.0%311
54.4%
 Cheng3 1.05 32-bit2559+32−3248.0%+14.933.6%324
51.5%
 Arasan 11.7 32-bit2558+32−3249.2%+6.336.0%308
55.9%
 DanaSah 4.882555+22−2250.5%−3.133.9%676
58.6%
 DanaSah 5.002551+29−2948.5%+9.432.2%395
53.6%
 Crafty 21.6 32-bit2549+34−3447.8%+13.430.1%302
61.1%
 Betsabe II 1.842544+14−1448.3%+13.725.6%1851
54.4%
 Crafty 21.5 32-bit2542+32−3248.3%+13.428.5%344
51.1%
 DanaSah 4.662541+26−2648.1%+12.035.2%475
52.2%
 DanaSah 4.602540+25−2548.5%+10.935.1%513
50.2%
33Tucano 1.042540+30−3047.2%+17.636.5%359
53.3%
34Rodent 0.102538+33−3351.1%−9.831.9%313
51.7%
 Crafty 22.0 32-bit2537+33−3348.5%+10.331.9%304
51.1%
 Phalanx XXIV2537+20−2048.7%+7.427.3%887
55.4%
 Caligula 0.82535+19−1949.1%+6.626.3%938
54.5%
 Arasan 11.6 32-bit2533+33−3351.8%−12.932.6%304
49.4%
 K2 0.832533+26−2651.7%−12.333.3%474
53.8%
 Arasan 12.1 32-bit2531+33−3251.4%−12.127.3%326
50.2%
 CuckooChess 1.102531+31−3151.5%−11.934.5%330
58.2%
 DanaSah 4.242527+17−1751.5%−10.736.9%1128
67.9%
35EXchess 6.10b 32-bit2518+32−3349.4%+4.032.5%314
53.2%
 Crafty 20.14 32-bit2517+27−2747.4%+19.333.4%482
53.8%
 Brutus 7.02b2515+19−1852.0%−16.035.4%994
52.1%
 DanaSah 5.062514+32−3249.5%+1.435.1%319
51.3%
 DanaSah 4.452513+29−2949.9%+1.838.4%378
55.5%
 Arasan 10.0 32-bit2510+33−3349.0%+6.328.8%309
50.7%
 Crafty 20.13 32-bit2510+33−3348.7%+9.533.3%312
51.9%
 CuckooChess 1.092509+33−3351.6%−13.326.8%317
52.1%
 Betsabe II 1.752508+22−2251.8%−14.923.3%730
56.5%
 DanaSah 4.372504+32−3249.7%+2.238.3%321
54.2%
36Pawny 0.3.1 32-bit2502+33−3348.9%+7.928.7%310
50.8%
 Crafty 20.11 32-bit2501+33−3349.8%+4.030.0%307
51.8%
 Arasan 11.3 32-bit2500+33−3448.7%+8.230.9%301
59.1%
 Arasan 10.32495+24−2445.6%+32.730.6%634
51.7%
 Cheng3 1.03 32-bit2495+33−3350.6%−6.030.8%318
51.8%
37GreKo 9.2 32-bit2493+33−3349.7%+2.232.9%304
53.9%
 K2 0.752491+23−2352.4%−18.132.8%634
58.2%
 Arasan 11.4 32-bit2487+33−3449.0%+8.228.5%305
49.9%
38DoubleCheck 3.1 32-bit2487+34−3451.0%−7.924.8%306
50.7%
 GreKo 8.2 32-bit2487+25−2649.1%+5.533.8%506
62.7%
 Arasan 10.2 32-bit2481+25−2545.5%+34.728.0%600
48.7%
39Pepito 1.59 32-bit2481+24−2449.6%+1.534.0%583
59.7%
40BBChess 1.3b2477+24−2450.2%−0.938.7%555
60.5%
 BBChess 1.3a2472+25−2551.6%−12.130.5%528
54.4%
 Arasan 10.42471+20−2145.5%+32.130.0%850
54.0%
41Counter 1.22469+17−1748.2%+13.238.5%1139
61.7%
42Nemeton 1.812465+25−2546.6%+22.435.5%527
54.9%
 Betsabe II 1.662463+22−2246.7%+23.928.4%718
52.2%
43Carballo 1.32462+25−2547.4%+17.631.0%561
51.9%
 Pawny 0.3 32-bit2461+33−3349.2%+3.334.3%303
53.1%
 Carballo 1.22459+23−2353.4%−22.229.6%642
50.7%
 Nemeton 1.82459+17−1751.9%−15.527.3%1250
56.5%
 Counter 1.12456+23−2350.8%−7.837.7%632
59.7%
 Nemeton 1.512452+22−2249.8%−0.128.8%732
53.9%
 Cyrano 0.32450+34−3449.2%+4.823.8%311
51.2%
 GreKo 8.0 32-bit2450+29−2950.6%−4.029.7%411
56.5%
 Arasan 9.52446+36−3647.3%+16.723.7%291
56.1%
 Betsabe II 1.472443+20−2049.9%+1.725.3%902
49.4%
44Typhoon 1.00-3482443+33−3348.5%+11.329.2%325
52.1%
 Arasan 10.12442+27−2746.4%+31.228.5%498
50.7%
 Cheng3 1.02b2441+33−3350.2%−3.530.4%312
53.9%
 K2 0.792439+29−2947.4%+19.030.6%402
51.0%
 Nemeton 1.62439+24−2446.4%+24.731.8%604
58.3%
 Critter 0.382434+32−3251.1%−8.533.4%320
49.9%
 Typhoon 1.00-3582434+17−1748.2%+12.331.1%1220
54.2%
45Murka 2 32-bit2433+30−3047.4%+18.126.3%400
57.0%
 GreKo 7.2 32-bit2429+33−3348.4%+9.335.5%304
51.2%
 DanaSah 3.632428+27−2748.4%+10.332.3%477
53.3%
 Arasan 9.22426+33−3446.1%+28.130.9%304
54.3%
 Nemeton 1.612424+28−2847.3%+17.532.3%421
56.2%
 DanaSah 2.852420+33−3349.0%+8.633.8%305
52.8%
46Kiwi 0.6d 32-bit2419+19−1948.3%+9.927.0%975
48.8%
 Nemeton 1.72419+18−1849.6%+1.125.2%1141
53.8%
 K2 0.712418+28−2851.4%−9.827.6%439
58.9%
 Pawny 0.2.2 32-bit2413+34−3448.8%+8.428.6%301
51.8%
47Diablo 0.5.12412+18−1848.8%+7.932.4%1082
52.6%
 Typhoon 1.00-3142410+34−3450.2%+0.223.0%305
56.1%
48RomiChess P3k 32-bit2407+19−1949.2%+5.633.0%906
61.8%
49Amy 0.87b2403+24−2449.4%+6.525.7%610
49.8%
 Pawny 0.2.1 32-bit2403+31−3147.1%+19.725.5%373
51.0%
 Cyrano 0.2f2402+32−3348.4%+14.132.9%316
52.8%
 Pawny 0.2 32-bit2401+29−2949.2%+4.930.8%396
56.3%
50Simplex 0.9.8 32-bit2397+30−3149.0%+5.431.2%359
56.4%
 Phalanx XXII2394+24−2550.1%−1.323.5%595
69.3%
 DoubleCheck 2.5.4 32-bit2383+33−3350.5%−3.428.6%318
51.3%
 RomiChess P3L 32-bit2382+33−3346.3%+28.933.4%314
54.2%
51Thor's Hammer 2.28 32-bit2380+22−2248.6%+10.229.2%702
54.2%
 GreKo 6.302378+33−3348.0%+13.831.6%307
56.9%
 Carballo 1.1.12374+32−3247.5%+19.327.4%340
52.5%
 Counter 1.02373+32−3250.3%−4.335.3%312
50.6%
 Typhoon 1.00-2852372+34−3449.5%+2.620.1%314
52.5%
 GreKo 7.02371+28−2846.3%+28.427.8%454
49.3%
52Ifrit m1.5 32-bit2371+27−2746.6%+24.729.1%453
55.1%
 GreKo 6.252368+33−3348.5%+9.631.5%308
57.8%
 GreKo 6.52364+26−2648.9%+7.431.5%495
49.9%
 Phalanx XXIII2364+32−3246.3%+24.124.8%351
66.5%
 Nemeton 1.412355+25−2547.6%+18.733.7%514
51.6%
 K2 0.672354+23−2352.7%−17.129.7%677
51.5%
 Nemeton 1.32354+31−3152.1%−17.833.5%340
52.0%
 Counter 0.82353+32−3248.6%+10.435.6%312
56.2%
 GreKo 5.92349+24−2446.4%+28.229.3%621
60.8%
 Ifrit m1.6 32-bit2344+32−3247.5%+14.735.0%314
53.4%
53Xpdnt 0907042342+33−3351.8%−13.629.0%314
62.0%
 Daydreamer 1.52336+22−2252.1%−19.034.3%722
60.9%
 Nemeton 1.12330+29−2947.5%+17.531.3%393
55.0%
54Amundsen 0.802328+17−1749.1%+7.229.2%1269
60.8%
 Simplex 0.9.7 32-bit2323+31−3148.6%+10.025.4%370
70.0%
 GreKo 5.52311+33−3350.7%−5.433.1%305
54.2%
 Nemeton 1.22309+26−2646.3%+23.528.7%516
62.7%
 Brutus 6.12302+34−3448.4%+7.825.0%312
49.7%
55Natwarlal 0.142302+19−1949.1%+6.425.2%1027
53.0%
 Xpdnt 0809272301+29−2951.2%−8.824.8%428
63.8%
 Pawny 0.1.62293+33−3352.1%−15.924.4%328
50.6%
 Natwarlal 0.122292+34−3449.4%+7.726.6%308
50.2%
 Nemeton 1.02292+30−3052.6%−17.827.4%383
71.1%
 Brutus 5.42279+34−3450.7%−4.229.1%302
51.7%
 GreKo 5.2.52278+34−3451.3%−11.826.6%297
81.6%
56Sungorus 1.4 32-bit2260+21−2148.2%+11.926.5%820
59.6%
 Sungorus 1.3 32-bit2255+34−3452.7%−16.724.3%301
53.5%
57RattateChess 1.0 Nosferatu2253+18−1949.9%+0.827.8%1036
53.1%
 Brutus 6.02251+35−3548.8%+6.022.6%301
52.1%
 EXchess 5.01b 32-bit2250+29−2946.5%+21.431.2%401
74.6%
58Feuerstein 0.4.6.12238+19−1949.1%+6.428.5%944
53.0%
 Betsabe II 1.08c2237+35−3549.2%+7.921.0%300
72.2%
 Vajolet 1.62.12222+34−3447.7%+12.528.4%310
55.7%
59Bagatur 1.2d 32-bit2219+34−3446.8%+19.627.2%298
52.7%
60Beowulf 2.4a 32-bit2217+19−1953.5%−26.324.8%982
65.4%
61ZCT 0.3.24512211+27−2749.4%+3.425.5%478
52.4%
 Betsabe II 1.09c2209+34−3548.2%+12.219.8%308
56.9%
62Jazz 501 32-bit2205+29−2952.5%−17.728.5%418
57.0%
63MORA 1.0.02202+28−2852.8%−20.427.5%440
50.8%
 RattateChess Bologna 20072201+25−2551.3%−9.625.0%588
53.6%
 MORA 1.1.02199+33−3350.0%+0.026.2%328
57.3%
 Carballo 0.82196+22−2247.2%+18.730.6%706
50.2%
 Jazz 444 32-bit2195+32−3250.3%−2.825.2%353
62.3%
 Amundsen 0.65.12188+34−3448.7%+7.723.9%305
50.6%
 Feuerstein 0.4.5.22187+37−3749.2%+9.324.7%255
50.1%
 K2 0.572187+33−3347.0%+22.625.8%314
67.0%
 RedQueen 0.62177+30−3046.1%+28.019.9%418
53.8%
 Feuerstein 0.4.62175+38−3850.6%−2.118.5%259
51.6%
 Sungorus 1.22174+26−2652.4%−17.928.7%499
56.6%
 Pawny 0.132170+32−3252.2%−17.220.1%363
60.7%
 Simplex 0.9.3 32-bit2164+34−3448.9%+8.624.8%315
57.5%
 Betsabe II 1.052159+34−3445.2%+33.724.2%314
54.6%
 Bagatur 1.2b 32-bit2157+33−3446.2%+27.829.1%306
48.4%
64OliThink 5.1.92157+30−3046.6%+28.021.3%417
55.3%
65Chesley r323 32-bit2155+24−2448.9%+8.620.7%641
59.4%
 Ifrit j4.32150+28−2845.9%+28.629.5%440
68.8%
 K2 0.43f2140+33−3348.2%+11.421.3%338
53.9%
66Prophet 2.0 32-bit2138+19−1949.3%+4.424.0%1025
55.6%
67Parrot 07.07.222136+19−1947.3%+19.723.0%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
64.6%
 DoubleCheck 2.1 32-bit2115+33−3346.3%+30.721.8%362
54.4%
68ChessKISS 1.3a 32-bit2112+33−3347.0%+19.030.3%320
77.8%
 Carballo 0.52097+23−2347.1%+20.121.9%694
78.1%
 Ifrit j2.92081+34−3448.2%+11.421.3%314
51.2%
 Feuerstein 0.4.5.12080+38−3848.0%+12.425.8%248
51.5%
69AdroitChess 0.42079+23−2356.5%−60.415.1%832
92.8%
 ZCT 0.3.25002050+32−3246.2%+29.416.8%381
53.2%
70PLP 16615712048+22−2246.2%+27.424.3%766
59.7%
71Jabba 1.0 32-bit2044+21−2144.8%+38.925.0%839
85.5%
72Faile 1.4.42027+23−2355.2%−27.922.1%774
53.7%
73Slibo 0.5.12026+26−2645.5%+33.319.4%573
91.5%
74BibiChess 0.52001+24−2445.7%+31.326.5%607
61.0%
75Cupcake 1.01995+31−3145.5%+31.522.7%401
54.5%
76Schola 1.1.0 32-bit1993+26−2645.6%+32.225.1%514
68.9%
 AdroitChess 0.31983+25−2544.2%+46.818.5%626
84.9%
77Dabbaba 5.671965+25−2545.5%+33.426.4%557
65.5%
78Sissa 2.01958+23−2353.1%−22.730.1%678
57.0%
 Feuerstein 0.4.4.21955+28−2941.2%+91.518.7%518
48.8%
79Monik 2.2.3 32-bit1955+30−3044.4%+39.427.1%395
53.8%
80Wowl 1.3.81953+26−2745.4%+35.613.3%573
54.3%
81Smash 1.0.31951+26−2640.8%+74.317.8%574
68.9%
82Micro-Max 4.8 (DM-PII)1943+20−2048.3%+12.426.1%865
58.8%
 Dabbaba 6.521939+22−2248.6%+11.520.3%777
63.6%
83Eia 0.31934+20−2047.1%+22.524.4%914
71.0%
 Wowl 1.3.71925+25−2546.8%+24.611.7%630
75.8%
 Carballo 0.41910+32−3335.8%+103.934.8%342
55.8%
 Dabbaba 7.491907+11−1247.8%+17.619.9%3152
53.0%
 Jabba 130320121906+31−3139.1%+97.716.7%442
59.2%
84ChessterfieldCL i5a1901+24−2440.6%+74.520.4%658
68.3%
 Micro-Max 4.81892+28−2836.7%+103.224.7%493
77.6%
85CDrill 1800 build 41878+23−2441.4%+72.915.5%741
100.0%
86RataAeroespacial 0.2.11815+13−1342.5%+64.712.9%2478
100.0%
87TSCP 1.811693+20−2047.4%+21.217.0%1072
83.8%
88Spartan 1.01675+25−2563.5%−103.021.2%624
67.4%
89Philemon C1668+25−2562.3%−95.422.0%626
59.4%
90VanillaChess 2.6g1663+25−2561.5%−88.820.2%624
100.0%
91PolarChess 1.31575+25−2549.3%+3.316.9%629
57.0%
92Darky 0.5d1572+24−2443.5%+55.720.8%677
98.7%
93MSCP 1.6h1530+25−2544.0%+50.815.1%628
99.8%
94Apep 1.011480+25−2541.2%+72.010.1%683
100.0%
95BACE 0.461379+23−2421.5%+256.89.8%1027
 

Results matrix

Open source 32-bit 1-2-CPU engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.22.0 T40B.4-160 GTX10503465            
2ChessBrainVB 3.743070            
3Stockfish 2.2.2 32-bit3050   26 − 28
+8−10=36
−38
19 − 13
+11−5=16
−13
  33 − 5
+28−0=10
+71
    
4IvanHoe 9.46h 32-bit3023  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
+60
    
5Gull II b2 32-bit2982  13 − 19
+5−11=16
+13
10 − 21
+0−11=20
−54
        
6Protector 1.5.0 32-bit2948   10 − 20
+2−12=16
−22
        
7Toga II 3.02850       2 − 0
+2−0=0
+INF
    
8Booot 5.1.02844  5 − 33
+0−28=10
−71
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
9MinkoChess 1.3 32-bit2829       6.5 − 3.5
+4−1=5
+102
  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
+45
    
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
1Lc0 0.22.0 T40B.4-160 GTX10503465 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2ChessBrainVB 3.7430700.0 94.7100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Stockfish 2.2.2 32-bit30500.05.3 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-bit29480.00.00.00.01.4 100.0100.0100.0100.0100.0100.0
7Toga II 3.028500.00.00.00.00.00.0 75.888.2100.0100.0100.0
8Booot 5.1.028440.00.00.00.00.00.024.2 80.9100.0100.0100.0
9MinkoChess 1.3 32-bit28290.00.00.00.00.00.011.819.1 100.099.9100.0
10Glaurung 2.1 32-bit27650.00.00.00.00.00.00.00.00.0 50.387.2
11Texel 1.01 32-bit27650.00.00.00.00.00.00.00.00.149.7 81.1
12Scorpio 2.7 32-bit27490.00.00.00.00.00.00.00.00.012.818.9 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Alter engine selection



Alter output selection

Rating list
Testing profile
  (Step: , Numbers: )

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

Maximum size of cross-tables (from 2 to 100):
Limit crosstables to engines in Elo range: to
Match length (Minimum number of games to highlight with color):

Cross-tables show only best version of each engine
Sort cross-tables by:   Rating   Name
Highlight diagonal of cells wide. (0 to highlight everything)

Reference rating list:
Recalibrate:
  No recalibration (reference and current list are compared as they are)
  Recalibrate reference list to current one using selected engines only
  Recalibrate reference list to current one using all common engines
  Recalibrate current list to reference using selected engines only
  Recalibrate current list to reference using all common engines


Created in 2005-2013 by CCRL team
Last games added on February 26, 2020