CCRL 40/40
Downloads and Statistics
May 25, 2019
Testing summary:
Total: 1'048'225 games
played by 2'458 programs
143565 CPU days (X2 4600+)

White wins: 364'320 (34.8%)
Black wins: 271'251 (25.9%)
Draws: 412'654 (39.4%)
White score: 54.4%

Open source multi-CPU engines

Comparing 170 engines!
39 best versions of selected engines played 3204 games with each other

CCRL 40/40 Rating List — Open source multi-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 May 25, 2019 with Bayeselo based on 1'048'225 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+
1Stockfish 10 64-bit 4CPU3463+19−1974.1%−163.148.9%930 
55.3%
 SugaR 1.6.1 64-bit 4CPU3461+26−2669.6%−122.556.4%447
64.9%
 Stockfish 270918 64-bit 4CPU3454+28−2777.9%−189.543.3%457
71.5%
 ShashChess 8.0 64-bit 4CPU3442+27−2668.1%−111.260.8%416
68.0%
 SugaR XPrO 1.5.3 64-bit 4CPU3434+24−2471.8%−144.451.3%544
55.6%
 Stockfish 9 64-bit 4CPU3432+15−1572.3%−153.750.5%1423
95.5%
 SugaR XPrO 1.4 64-bit 4CPU3411+20−2072.3%−150.451.8%840
55.8%
 asmFish 051117 64-bit 4CPU3409+20−1969.8%−130.455.7%819
75.2%
 SugaR XPrO 1.2 64-bit 4CPU3399+21−2070.4%−135.952.5%754
62.8%
 ShashChess Pro 1.0 64-bit 4CPU3392+33−3365.6%−93.661.7%256
77.7%
 Stockfish 8 64-bit 4CPU3378+14−1365.1%−96.462.1%1647
64.6%
 SugaR XPrO 1.3 64-bit 4CPU3373+23−2266.0%−102.857.4%598
100.0%
 Stockfish 7 64-bit 4CPU3326+15−1567.0%−106.057.3%1304
84.3%
 Xiphos 0.5 64-bit 4CPU3304+37−3837.9%+74.666.5%194
59.8%
2Ethereal 11.00 64-bit 4CPU3298+20−2048.7%+8.363.9%714
55.0%
 Ethereal 11.25 64-bit 4CPU3296+26−2643.3%+42.465.1%410
62.9%
 Stockfish 6 64-bit 4CPU3291+14−1465.3%−94.257.3%1542
68.7%
3Laser 1.7 64-bit 4CPU3282+30−3048.8%+9.361.3%302
64.0%
 Ethereal 10.55 64-bit 4CPU3275+25−2449.8%−2.057.4%488
59.8%
4Andscacs 0.95 64-bit 4CPU3270+29−2939.9%+62.859.5%336
53.1%
 Stockfish 5 64-bit 4CPU3269+15−1567.9%−111.253.7%1324
64.2%
 Andscacs 0.94 64-bit 4CPU3264+19−1848.3%+9.955.1%875
55.1%
5Booot 6.3.1 64-bit 4CPU3262+18−1843.5%+40.855.8%965
80.8%
6Xiphos 0.4 64-bit 4CPU3251+19−1943.8%+39.461.1%830
81.4%
 Andscacs 0.921 64-bit 4CPU3240+16−1650.7%−6.847.5%1225
51.8%
 Andscacs 0.93 64-bit 4CPU3239+18−1842.9%+45.554.8%938
64.2%
 Stockfish DD 64-bit 4CPU3234+17−1763.5%−80.755.5%992
91.7%
 Booot 6.2 64-bit 4CPU3218+15−1442.2%+50.859.2%1427
51.2%
 Laser 1.6 64-bit 4CPU3217+17−1742.4%+51.556.1%1034
82.5%
 Stockfish 4 64-bit 4CPU3206+17−1760.9%−64.858.9%1054
88.6%
 Ethereal 10.00 64-bit 4CPU3189+20−2053.4%−22.950.8%788
79.4%
7Gull 3 64-bit 4CPU3180+9−941.7%+53.254.5%3651
51.8%
8ChessBrainVB 3.72 4CPU3179+38−3844.3%+35.150.0%202
50.9%
 Xiphos 0.3 64-bit 4CPU3179+21−2149.2%+3.054.2%660
50.4%
 Gull 2.8b 64-bit 4CPU3178+19−1949.1%+4.251.8%797
69.4%
9Arasan 21.2 64-bit 4CPU3168+33−3353.7%−21.462.1%256
51.7%
 Arasan 21.1 64-bit 4CPU3167+27−2751.2%−7.359.5%383
51.2%
 Booot 6.1 64-bit 4CPU3167+20−2041.6%+51.960.6%708
51.9%
 Stockfish 3 64-bit 4CPU3166+21−2156.0%−35.257.8%663
76.8%
10Nemorino 5.00 64-bit 4CPU3155+20−2049.9%−1.152.2%762
72.7%
 Stockfish 2.2.2 64-bit 4CPU3147+16−1659.2%−56.753.4%1141
61.5%
 Laser 1.5 64-bit 4CPU3143+20−2049.4%+8.154.5%723
51.6%
 Gull 2.3 64-bit 4CPU3142+17−1747.4%+15.259.3%982
50.1%
 Stockfish 2.3.1 64-bit 4CPU3142+19−1955.4%−32.952.5%846
50.0%
11Texel 1.07 64-bit 4CPU3142+14−1449.9%+3.349.0%1568
65.3%
12Protector 1.9.0 64-bit 4CPU3138+15−1546.3%+26.054.1%1313
57.2%
13Vajolet2 2.6.1 64-bit 4CPU3136+21−2150.8%−4.860.3%605
59.0%
 Sting SF 4.8.4 64-bit 4CPU3132+29−2953.3%−21.362.4%330
49.1%
 Sting SF 6 64-bit 4CPU3132+28−2850.8%−6.561.0%354
51.2%
 Texel 1.06 64-bit 4CPU3132+20−2046.1%+24.853.6%739
60.0%
 Stockfish 2.0.1 64-bit 4CPU3127+24−2456.4%−40.548.6%514
58.1%
 ChessBrainVB 3.68 4CPU3124+26−2649.2%+3.751.6%428
49.7%
 Gull 3.1 64-bit 4CPU3124+30−3045.4%+33.145.1%359
48.8%
 Protector 1.8.0 64-bit 4CPU3124+28−2850.4%−1.354.7%386
60.1%
 Arasan 20.4.1 64-bit 4CPU3119+26−2651.7%−10.250.2%452
54.1%
 Sting SF 5 64-bit 4CPU3117+25−2548.1%+13.154.0%465
61.3%
14IvanHoe 9.46h 64-bit 4CPU3113+14−1453.2%−19.359.5%1542
49.5%
 Stockfish 2.1.1 64-bit 4CPU3113+27−2754.7%−28.848.3%406
54.2%
 Stockfish 1.9.1 64-bit 4CPU3111+23−2362.1%−80.546.2%580
56.3%
15Senpai 2.0 64-bit 4CPU3109+20−2050.9%−7.848.9%750
50.3%
 Sting SF 3 64-bit 4CPU3109+21−2147.7%+11.558.5%644
52.3%
 Sting SF 2 64-bit 4CPU3108+27−2748.8%+8.058.1%375
51.8%
 Stockfish 1.8 64-bit 4CPU3107+19−1962.2%−81.849.3%850
52.5%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−27.348.7%378
54.7%
 Stockfish 1.7.1 64-bit 4CPU3104+19−1960.7%−70.052.8%860
53.9%
 Xiphos 0.2.2 64-bit 4CPU3102+26−2647.3%+14.253.6%414
59.4%
 Gull 2.2 64-bit 4CPU3098+25−2544.5%+30.954.8%469
52.2%
 Vajolet2 2.5 64-bit 4CPU3097+24−2451.5%−10.054.0%493
52.1%
 Sting SF 9 64-bit 4CPU3096+34−3450.6%−4.345.5%266
51.5%
 Nemorino 4.00 64-bit 4CPU3095+22−2250.0%+1.252.9%624
50.3%
 Sting SF 4 64-bit 4CPU3095+23−2341.9%+48.648.9%562
62.7%
 Arasan 20.3 64-bit 4CPU3088+32−3252.5%−20.047.4%302
50.4%
 Laser 1.4 64-bit 4CPU3088+19−1949.6%+0.345.7%843
60.3%
 Texel 1.05 64-bit 4CPU3084+17−1747.3%+19.151.4%1016
76.9%
 Protector 1.7.0 64-bit 4CPU3075+19−1944.1%+36.750.6%834
58.1%
 Nemorino 3.0 64-bit 4CPU3071+27−2747.9%+13.346.1%427
51.4%
 Protector 1.6.0 64-bit 4CPU3071+21−2243.2%+44.150.2%656
53.9%
16Rodent III 0.238 64-bit 4CPU3069+20−2047.2%+15.350.0%742
63.0%
17Defenchess (SCTR) 1.1f 64-bit 4CPU3065+19−1851.7%−12.245.3%916
54.9%
18RubiChess 1.3 64-bit 4CPU3063+22−2252.8%−17.944.2%642
62.3%
 Texel 1.04 64-bit 4CPU3058+21−2143.1%+42.947.8%722
56.1%
 Protector 1.5.0 64-bit 4CPU3056+18−1842.5%+47.347.4%952
58.4%
 Rodent III 0.276 64-bit 4CPU3051+38−3854.6%−24.159.7%186
52.0%
19Amoeba 3.0 64-bit 4CPU3050+26−2654.2%−28.545.3%450
50.1%
 Ethereal 9.00 64-bit 4CPU3050+23−2346.8%+18.745.1%570
52.7%
20Demolito 2018-10-29 64-bit 4CPU3048+36−3652.0%−14.751.8%226
60.9%
 Vajolet2 2.2 64-bit 4CPU3042+27−2747.0%+14.948.7%423
49.4%
 Vajolet2 2.4 64-bit 4CPU3042+19−1947.2%+18.245.7%878
54.3%
 Stockfish 1.6.3 64-bit 4CPU3040+22−2258.2%−54.144.8%631
52.7%
 Arasan 19.2 64-bit 4CPU3039+31−3151.7%−11.455.0%289
50.4%
 Gull R375 64-bit 4CPU3039+22−2243.4%+36.857.4%605
70.1%
 Vajolet2 2.3 64-bit 4CPU3028+31−3243.7%+35.754.7%287
55.1%
 Arasan 20.0 64-bit 4CPU3025+34−3449.0%+8.257.1%240
51.3%
21Bobcat 8.0 64-bit 4CPU3024+21−2148.3%+11.953.5%636
51.1%
 Pirarucu 2.9.5 64-bit 4CPU3024+50−5045.7%+24.453.0%115
50.4%
 Senpai 1.0 64-bit 4CPU3023+16−1646.2%+21.453.5%1095
60.7%
22Pirarucu 2.7.4 64-bit 4CPU3020+22−2155.7%−40.547.0%659
51.9%
 Arasan 19.0.1 64-bit 4CPU3019+34−3354.2%−32.843.1%276
61.7%
23‑24Crafty 25.2 64-bit 4CPU3013+16−1648.5%+9.142.5%1279
49.1%
23‑24chess22k 1.10 64-bit 4CPU3013+22−2246.7%+16.743.7%680
53.2%
 Nemorino 2.00 64-bit 4CPU3012+30−3047.0%+15.959.6%302
53.2%
 Laser 1.3 64-bit 4CPU3010+30−3047.2%+15.555.8%321
49.5%
 Texel 1.03 64-bit 4CPU3010+31−3150.3%−1.147.0%313
52.5%
25Cheng 4.39 64-bit 4CPU3009+15−1550.0%+0.249.1%1288
75.0%
 Vajolet2 2.1 64-bit 4CPU2999+25−2550.9%−3.848.5%462
54.9%
 Rodent III 0.210 64-bit 4CPU2997+28−2845.1%+32.542.5%402
78.5%
 Protector 1.4.0 64-bit 4CPU2983+19−1942.5%+48.742.9%912
52.2%
26Scorpio 2.8 64-bit 4CPU2982+26−2649.6%+0.746.5%456
52.5%
 Cheng4 0.38 64-bit 4CPU2981+24−2446.0%+22.942.4%531
51.4%
 Bobcat 7.6 64-bit 4CPU2980+32−3250.2%−1.141.7%300
61.2%
 Arasan 18.3 64-bit 4CPU2973+30−3046.6%+20.946.8%327
54.5%
 Arasan 18.2 64-bit 4CPU2971+28−2851.9%−14.750.3%388
51.2%
27EXchess 7.97b 64-bit 4CPU2970+18−1847.4%+19.145.9%1017
51.1%
 Stockfish 1.5.1 64-bit 4CPU2970+25−2453.7%−23.047.7%495
66.8%
 Demolito 2017-08-26 64-bit 4CPU2963+21−2140.2%+63.240.8%748
48.5%
 Protector 1.3.6 64-bit 4CPU2963+33−3345.7%+24.744.7%291
60.4%
 EXchess 7.88b 64-bit 4CPU2958+29−2945.4%+29.148.6%356
51.6%
28Toga II 4.0 64-bit 4CPU2957+19−1941.5%+56.040.3%952
51.7%
 Marvin 3.3.2 64-bit 4CPU2956+51−5150.0%−2.340.0%120
55.9%
29Winter 0.5 64-bit 4CPU2951+25−2551.1%−8.439.4%500
53.1%
 Crafty 25.0 64-bit 4CPU2950+25−2548.1%+12.647.9%468
53.2%
 Stockfish 1.4 64-bit 4CPU2949+17−1754.2%−29.142.2%1131
59.2%
 Scorpio 2.7.9 64-bit 4CPU2945+22−2246.7%+21.140.5%659
61.4%
 EXchess 7.51b 64-bit 4CPU2939+33−3350.7%−2.345.7%276
57.8%
 Arasan 17.5 64-bit 4CPU2935+27−2748.4%+9.945.1%406
54.2%
 Bobcat 7.1 64-bit 4CPU2933+33−3348.0%+12.047.1%278
50.6%
 EXchess 7.71b 64-bit 4CPU2932+28−2853.3%−22.643.2%403
53.8%
 Ethereal 8.62 64-bit 4CPU2931+22−2244.2%+35.149.7%600
58.5%
 Arasan 18.0 64-bit 4CPU2926+29−2947.2%+16.141.5%378
64.5%
30Marvin 3.2.0 64-bit 4CPU2919+21−2153.7%−26.043.0%698
51.9%
 Toga II 3.0 4CPU2919+22−2245.6%+26.949.0%592
54.8%
 Topple 0.6.0 64-bit 4CPU2912+107−9775.0%−166.832.4%34
50.9%
 Crafty 23.8 64-bit 4CPU2911+34−3447.6%+16.247.2%267
62.7%
 Toga II 1.4.1SE 4CPU2905+13−1348.5%+10.341.6%2041
67.1%
 Cheng4 0.36c 64-bit 4CPU2897+30−3048.8%+6.346.6%326
51.8%
31Glaurung 2.2 64-bit 4CPU2896+16−1647.0%+19.440.7%1259
74.4%
32Octochess r5506 64-bit 4CPU2887+21−2144.5%+36.046.7%715
54.2%
33MinkoChess 1.3 64-bit 4CPU2886+21−2146.0%+24.143.7%725
51.7%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.945.8%996
64.1%
 Crafty 24.1 64-bit 4CPU2878+31−3243.5%+41.539.1%322
56.8%
 Scorpio 2.7.6 64-bit 4CPU2875+26−2647.4%+16.344.0%445
62.5%
 Glaurung 2.1 64-bit 4CPU2869+18−1942.8%+51.341.3%946
56.1%
 Bobcat 6.4b 64-bit 4CPU2867+27−2748.3%+11.046.5%415
52.0%
 EXchess 7.18b 64-bit 4CPU2866+35−3646.7%+19.837.9%256
51.4%
 Crafty 23.4 64-bit 4CPU2865+37−3747.2%+16.635.2%236
60.5%
 Arasan 16.3 64-bit 4CPU2858+34−3449.1%+4.340.2%276
51.8%
 Scorpio 2.7.5 64-bit 4CPU2857+36−3644.1%+33.750.9%230
51.4%
 Scorpio 2.7.7 64-bit 4CPU2856+32−3242.9%+44.541.3%310
57.3%
34Monolith 1.0 64-bit 4CPU2852+23−2347.5%+15.242.7%627
76.3%
 Crafty 23.3 64-bit 4CPU2837+31−3241.5%+55.638.2%325
55.9%
 Topple 0.5.0 64-bit 4CPU2832+60−6236.7%+83.142.2%83
53.8%
 Glaurung 2.0.1 64-bit 4CPU2829+17−1743.8%+38.543.5%1100
64.4%
 Octochess r5190 64-bit 4CPU2823+24−2445.9%+24.244.5%555
86.1%
 Laser 1.0 64-bit 4CPU2798+39−4037.2%+84.139.6%207
59.1%
 Crafty 23.1 64-bit 4CPU2792+36−3743.8%+42.736.9%241
89.1%
 Glaurung 1.2.1 64-bit 4CPU2765+19−1940.2%+64.538.1%967
67.8%
 Crafty 23.0 64-bit 4CPU2759+18−1839.0%+77.934.1%1042
96.7%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+114.936.7%607
50.8%
 Igel 1.5.1 64-bit 4CPU2731+89−9145.5%+28.360.6%33
58.9%
 Scorpio 2.1 64-bit 4CPU2719+27−2734.4%+109.331.6%490
55.6%
 Bagatur 1.7a 64-bit 4CPU2711+95−9841.2%+65.635.3%34
52.2%
 Minic 0.57 64-bit 4CPU2708+92−9540.0%+65.040.0%35
56.3%
35Igel 1.4.1 64-bit 4CPU2699+28−2850.7%−6.326.3%448
78.5%
36RedQueen 1.1.98 64-bit 4CPU2683+27−2839.5%+81.027.8%474
88.0%
 RedQueen 1.1.97 64-bit 4CPU2662+22−2245.7%+26.933.3%726
66.6%
 Asymptote 0.5 64-bit 4CPU2639+93−10026.5%+138.947.1%34
82.1%
37Fridolin 2.00 64-bit 4CPU2588+34−3441.9%+57.331.3%297
95.5%
38Jazz 840 64-bit 4CPU2553+20−2057.8%−63.825.3%1000
91.6%
39Nemeton 1.8 4CPU2529+27−2749.9%+1.727.2%496
92.6%
 Invictus r228 64-bit 4CPU2339+242−29528.6%+166.70.0%7
 

Results matrix

Open source multi-CPU engines (best versions only), top 12
#NameElo123456789101112
1Stockfish 10 64-bit 4CPU3463 33.5 − 14.5
+19−0=29
−51
 34.5 − 7.5
+27−0=15
+26
33.5 − 10.5
+24−1=19
−35
38.5 − 5.5
+33−0=11
+76
      
2Ethereal 11.00 64-bit 4CPU329814.5 − 33.5
+0−19=29
+51
   16 − 16
+1−1=30
−36
17.5 − 14.5
+4−1=27
−23
   27.5 − 8.5
+19−0=17
+20
  
3Laser 1.7 64-bit 4CPU3282   13.5 − 12.5
+5−4=17
−2
3.5 − 2.5
+1−0=5
+17
6 − 4
+2−0=8
+21
 7 − 3
+4−0=6
+10
6.5 − 3.5
+4−1=5
−19
   
4Andscacs 0.95 64-bit 4CPU32707.5 − 34.5
+0−27=15
−26
 12.5 − 13.5
+4−5=17
+2
 2.5 − 3.5
+0−1=5
−45
6 − 4
+2−0=8
+30
 6.5 − 3.5
+4−1=5
0
5.5 − 4.5
+3−2=5
−71
   
5Booot 6.3.1 64-bit 4CPU326210.5 − 33.5
+1−24=19
+35
16 − 16
+1−1=30
+36
2.5 − 3.5
+0−1=5
−17
3.5 − 2.5
+1−0=5
+45
 16 − 16
+6−6=20
−13
   26 − 10
+17−1=18
+26
  
6Xiphos 0.4 64-bit 4CPU32515.5 − 38.5
+0−33=11
−76
14.5 − 17.5
+1−4=27
+23
4 − 6
+0−2=8
−21
4 − 6
+0−2=8
−30
16 − 16
+6−6=20
+13
  5.5 − 4.5
+2−1=7
−44
7.5 − 2.5
+5−0=5
+70
21.5 − 14.5
+10−3=23
−42
  
7Gull 3 64-bit 4CPU3180           11.5 − 9.5
+3−1=17
−16
8ChessBrainVB 3.72 4CPU3179  3 − 7
+0−4=6
−10
3.5 − 6.5
+1−4=5
0
 4.5 − 5.5
+1−2=7
+44
  6 − 8
+1−3=10
−49
2.5 − 1.5
+1−0=3
+42
  
9Arasan 21.2 64-bit 4CPU3168  3.5 − 6.5
+1−4=5
+19
4.5 − 5.5
+2−3=5
+71
 2.5 − 7.5
+0−5=5
−70
 8 − 6
+3−1=10
+49
 5 − 5
+1−1=8
−9
3 − 3
+0−0=6
−26
 
10Nemorino 5.00 64-bit 4CPU3155 8.5 − 27.5
+0−19=17
−20
  10 − 26
+1−17=18
−26
14.5 − 21.5
+3−10=23
+42
 1.5 − 2.5
+0−1=3
−42
5 − 5
+1−1=8
+9
 22 − 20
+12−10=20
+1
 
11Texel 1.07 64-bit 4CPU3142        3 − 3
+0−0=6
+26
20 − 22
+10−12=20
−1
 28 − 33
+12−17=32
−26
12Protector 1.9.0 64-bit 4CPU3138      9.5 − 11.5
+1−3=17
+16
   33 − 28
+17−12=32
+26
 
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 multi-CPU engines (best versions only), top 12
#NameElo123456789101112
1Stockfish 10 64-bit 4CPU3463 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Ethereal 11.00 64-bit 4CPU32980.0 80.594.099.7100.0100.0100.0100.0100.0100.0100.0
3Laser 1.7 64-bit 4CPU32820.019.5 72.586.695.5100.0100.0100.0100.0100.0100.0
4Andscacs 0.95 64-bit 4CPU32700.06.027.5 67.085.4100.0100.0100.0100.0100.0100.0
5Booot 6.3.1 64-bit 4CPU32620.00.313.433.0 80.8100.0100.0100.0100.0100.0100.0
6Xiphos 0.4 64-bit 4CPU32510.00.04.514.619.2 100.0100.0100.0100.0100.0100.0
7Gull 3 64-bit 4CPU31800.00.00.00.00.00.0 51.874.598.6100.0100.0
8ChessBrainVB 3.72 4CPU31790.00.00.00.00.00.048.2 66.886.395.997.1
9Arasan 21.2 64-bit 4CPU31680.00.00.00.00.00.025.533.2 75.492.094.4
10Nemorino 5.00 64-bit 4CPU31550.00.00.00.00.00.01.413.724.6 84.890.0
11Texel 1.07 64-bit 4CPU31420.00.00.00.00.00.00.04.18.015.2 65.3
12Protector 1.9.0 64-bit 4CPU31380.00.00.00.00.00.00.02.95.610.034.7 
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 May 25, 2019