KCEC
(Kirr's Chess Engine Comparison)
A tournament of original free chess engines
June 16, 2013
Testing summary:
Total: 135,679 games
played by 202 programs
1398 CPU days (X2 4600+)

White wins: 55,227 (40.7%)
Black wins: 47,434 (35.0%)
Draws: 33,018 (24.3%)
White score: 52.9%

Engine Details

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Show each game results
Abrok 5.0 UCI#48  (2561+17
−17		)Quote
Author: Roman Korba (Germany) Released: 2003-05-25Link: Homepage
This engine is stable and runs without issues.
This is the only Abrok version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Petir 4.9999992670+19
−19		(+109)8.5 − 13.5
(+3−8=11)
38.6%
8.5 / 22
0.0%
+41
55.4%
1152
0.69
638
0 0 = 0 1 = = 0 = = = 0 0 = 1 = = 0 1 0 = =
–   Hamsters 0.62669+18
−18		(+108)5.5 − 17.5
(+3−15=5)
23.9%
5.5 / 23
0.0%
−87
56.4%
1980
0.50
1117
0 1 0 0 0 0 = 0 0 0 = = 0 1 0 0 0 = 1 0 0 0 =
–   BugChess2 1.5.22661+18
−18		(+100)12 − 14
(+7−9=10)
46.2%
12.0 / 26
0.0%
+74
56.7%
1986
0.58
1126
= 0 0 = 1 0 0 0 = = 1 1 = 1 = 0 = 0 = 0 1 = 1 0 1 =
–   Jonny 2.832652+17
−17		(+91)11 − 15
(+8−12=6)
42.3%
11.0 / 26
0.0%
+36
54.6%
1831
0.79
1000
1 1 0 = 1 0 0 0 = 0 0 = = 1 1 1 0 0 = 1 0 1 0 0 0 =
–   Crafty 21.5 64-bit PS2652+17
−17		(+91)12.5 − 14.5
(+8−10=9)
46.3%
12.5 / 27
0.0%
+67
55.7%
1863
0.77
1037
= 1 1 = 0 0 0 1 0 1 1 0 = 1 0 1 = 0 0 = 0 1 = = 0 = =
–   The Baron 1.8.12651+18
−18		(+90)7 − 18
(+6−17=2)
28.0%
7.0 / 25
0.0%
−91
54.7%
2289
0.89
1252
= 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 1 0 1 0 0 = 0 1 0
–   Anaconda 2.0.12644+17
−17		(+83)6.5 − 15.5
(+2−11=9)
29.5%
6.5 / 22
0.0%
−49
60.2%
1076
0.74
648
0 0 1 0 = = 0 0 = 0 1 = = = 0 0 = = 0 = 0 0
–   Fritz 5.322643+17
−17		(+82)8 − 17
(+4−13=8)
32.0%
8.0 / 25
0.0%
−39
60.1%
1949
0.61
1171
0 0 = 1 0 0 = 1 0 = 0 0 1 = = = = 0 0 0 = 1 0 0 0
–   Ktulu 4.22634+17
−17		(+73)7 − 13
(+3−9=8)
35.0%
7.0 / 20
0.0%
−17
58.8%
1201
1.00
706
0 = 0 0 0 = 0 = = = 1 1 = 0 = 1 0 = 0 0
–   Thinker 4.7a2634+17
−17		(+73)8 − 14
(+4−10=8)
36.4%
8.0 / 22
0.0%
−16
54.1%
1363
0.56
738
1 0 = 0 0 = = 0 = 1 0 0 = = 0 0 = 1 0 = 0 1
–   SmarThink 0.17a2633+16
−16		(+72)14 − 7
(+10−3=8)
66.7%
14.0 / 21
0.0%
+179
54.5%
1002
0.63
546
= 0 1 0 = 1 = = = 1 0 1 1 = 1 1 1 1 = 1 =
–   Ufim 8.022628+18
−18		(+67)12.5 − 16.5
(+7−11=11)
43.1%
12.5 / 29
0.0%
+24
58.4%
1885
0.80
1101
= = = 0 = 0 = 1 1 = 1 1 1 0 0 0 0 = 0 0 = 1 0 = 0 1 = = 0
–   Fritz 6 Light2627+19
−19		(+66)9.5 − 14.5
(+6−11=7)
39.6%
9.5 / 24
0.0%
−8
60.7%
1600
0.57
971
0 0 1 0 = = 0 1 = = 0 1 = 0 0 = = 0 1 0 0 1 0 1
–   Trace 1.37a2622+17
−17		(+61)11 − 18
(+9−16=4)
37.9%
11.0 / 29
0.0%
−32
53.8%
2170
0.74
1168
1 0 0 0 1 1 1 0 = 0 0 0 1 0 0 0 1 = 0 1 0 1 0 0 1 0 = 0 =
–   AnMon 5.602621+18
−18		(+60)6.5 − 19.5
(+3−16=7)
25.0%
6.5 / 26
0.0%
−115
56.3%
1634
0.60
920
= 1 = 0 = = 0 0 = 0 0 0 1 0 = 0 0 0 = 0 0 1 0 0 0 0
–   E.T. Chess 18.11.052620+21
−21		(+59)8.5 − 18.5
(+2−12=13)
31.5%
8.5 / 27
0.0%
−51
57.0%
1401
0.55
799
= = 0 0 0 = 1 = = = 0 0 0 = = 0 0 = = 0 = 0 = = 0 0 1
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17		(+53)9.5 − 14.5
(+6−11=7)
39.6%
9.5 / 24
0.0%
−17
55.5%
1716
0.97
952
= 0 0 0 = 0 0 0 0 1 = 1 0 1 = 0 = 1 0 1 0 1 = =
–   Yace 0.99.872609+17
−17		(+48)11.5 − 14.5
(+5−8=13)
44.2%
11.5 / 26
0.0%
+16
59.4%
1201
0.50
713
= 0 0 = 1 = 0 = 0 = = = 1 = 0 0 = 0 0 = = = 1 1 = 1
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19		(+46)11.5 − 16.5
(+9−14=5)
41.1%
11.5 / 28
0.0%
−18
51.2%
2622
0.81
1342
0 0 0 1 = 1 = 0 0 0 1 0 0 1 = 1 = 0 1 1 0 0 = 0 1 0 0 1
–   Hamsters 0.52595+21
−21		(+34)9.5 − 15.5
(+5−11=9)
38.0%
9.5 / 25
0.5%
−45
55.6%
1621
0.57
902
= 0 1 0 1 0 0 1 = = 0 = = = 0 0 0 1 0 = 0 = 0 = 1
–   Pepito 1.59 32-bit2595+19
−19		(+34)12 − 12
(+9−9=6)
50.0%
12.0 / 24
0.3%
+35
57.1%
1801
0.70
1029
1 = 1 1 = 0 0 0 = 1 0 1 0 = 1 1 0 1 0 1 = 0 0 =
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18		(+23)8.5 − 15.5
(+6−13=5)
35.4%
8.5 / 24
3.2%
−83
57.0%
1788
0.62
1020
0 0 0 0 = 0 0 0 = 1 = = = 0 1 0 0 1 1 1 0 0 1 0
–   Green Light Chess 3.002582+17
−17		(+21)9 − 11
(+5−7=8)
45.0%
9.0 / 20
3.5%
−8
53.4%
1156
0.88
617
1 = 1 = 0 = 1 1 0 0 = 0 1 0 = = 0 = = 0
–   Tao 5.62574+17
−17		(+13)9.5 − 14.5
(+7−12=5)
39.6%
9.5 / 24
13.8%
−61
57.9%
1900
0.78
1101
1 0 0 = 1 0 = = 0 1 1 1 0 0 0 = 0 0 0 0 1 0 = 1
–   Cerebro 3.03d2572+19
−19		(+11)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
20.1%
−22
56.9%
2231
0.69
1269
1 = = 1 0 0 0 = = 1 1 = 0 = 1 0 0 1 0 0 0 = 0 0 = 1 0 = 1 1 0 1
–   Twisted Logic 20080404x2568+18
−18		(+7)18.5 − 11.5
(+16−9=5)
61.7%
18.5 / 30
28.7%
+93
56.0%
2491
0.74
1394
1 1 0 1 0 1 1 1 0 1 1 0 1 0 1 1 1 = = 1 1 0 0 = = 1 1 = 0 0
–   Arasan 10.0 64-bit2564+17
−17		(+3)15.5 − 14.5
(+11−10=9)
51.7%
15.5 / 30
42.2%
+13
56.6%
2244
0.60
1269
1 0 = 0 1 1 1 0 1 = 0 = = 1 0 0 = = 1 = 0 = 1 = 1 0 0 0 1 1
–   Amyan 1.5972552+17
−17		(−9)21.5 − 6.5
(+21−6=1)
76.8%
21.5 / 28
78.3%
+228
57.7%
2374
0.61
1369
1 1 0 1 1 1 = 1 1 1 1 1 1 1 1 1 1 0 1 0 0 1 0 1 1 1 1 0
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18		(−10)15 − 10
(+9−4=12)
60.0%
15.0 / 25
81.5%
+50
59.7%
1247
0.49
745
1 1 = = = 1 0 = = = = = 1 = = 1 0 0 1 1 0 1 = 1 =
–   SpiderChess 0706032546+17
−17		(−15)12.5 − 7.5
(+8−3=9)
62.5%
12.5 / 20
90.5%
+66
54.2%
1277
0.54
692
= 1 1 1 1 = = = = 1 = 1 = 0 = 0 = 1 1 0
–   Quark 2.352536+16
−16		(−25)8.5 − 19.5
(+5−16=7)
30.4%
8.5 / 28
98.7%
−164
55.2%
2218
0.73
1225
0 0 1 1 0 0 = 0 = 0 0 0 = 0 0 = 1 0 1 0 = 0 0 = 0 0 1 =
–   Gaia 3.5 64-bit2536+17
−17		(−25)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
98.6%
−37
60.5%
2795
0.65
1692
0 0 1 1 0 = = 1 0 0 0 1 = 0 = 0 1 1 1 = = 0 0 0 1 1 0 1 1 1 = 0
–   King of Kings 2.562536+18
−18		(−25)12 − 16
(+8−12=8)
42.9%
12.0 / 28
98.3%
−73
58.2%
1914
0.75
1114
0 1 = 0 = 0 1 0 = 0 1 0 0 = = 1 0 1 = 0 = 0 0 0 1 = 1 1
–   LambChop 10.992531+17
−17		(−30)13.5 − 13.5
(+7−7=13)
50.0%
13.5 / 27
99.6%
−32
58.5%
1425
0.64
834
= 0 1 0 = = = 0 = = 0 0 0 = 1 1 1 = = = 1 = 0 1 = 1 =
–   Dragon 4.62524+16
−16		(−37)14 − 13
(+10−9=8)
51.9%
14.0 / 27
99.9%
−21
56.1%
1938
0.70
1087
1 0 = = 0 1 = 1 0 1 1 0 = = = 0 0 1 = = 0 1 1 0 1 0 1
–   Nejmet 3.072521+16
−16		(−40)15.5 − 8.5
(+12−5=7)
64.6%
15.5 / 24
100.0%
+60
57.0%
1611
0.72
918
0 1 0 = 1 = 1 0 1 = = 1 1 1 1 1 = 0 1 = 0 = 1 1
–   Snitch 1.6.2 32-bit2521+15
−15		(−40)13 − 9
(+9−5=8)
59.1%
13.0 / 22
100.0%
+22
56.8%
1332
0.73
757
= 1 1 0 1 = 1 1 0 1 = = = 1 = 1 1 = 0 0 0 =
–   RomiChess P3k 64-bit2502+18
−18		(−59)20.5 − 11.5
(+16−7=9)
64.1%
20.5 / 32
100.0%
+37
62.9%
2110
0.76
1327
= 1 = = 1 1 = 1 1 = 0 1 1 = 0 0 = = 1 1 1 1 0 = 0 1 1 1 0 1 0 1
–   Amy 0.8.7b DC2500+17
−17		(−61)17.5 − 7.5
(+15−5=5)
70.0%
17.5 / 25
100.0%
+86
56.0%
1992
0.74
1115
1 1 0 0 1 1 1 1 0 = 0 1 1 1 1 1 = = = = 1 1 1 0 1
–   KnightDreamer 3.32499+16
−16		(−62)11.5 − 16.5
(+8−13=7)
41.1%
11.5 / 28
100.0%
−124
54.3%
2208
0.64
1200
1 1 1 = 1 0 = = 1 0 1 = 0 0 = 1 0 0 1 0 = 0 = 0 0 0 0 0
–   Francesca MAD 0.13 Nobook2493+19
−19		(−68)13.5 − 9.5
(+12−8=3)
58.7%
13.5 / 23
100.0%
−1
65.1%
2066
0.82
1345
1 1 = = 1 1 0 1 1 = 0 1 1 1 0 0 0 1 0 0 0 1 1
–   Leila 0.53h2490+17
−17		(−71)15.5 − 9.5
(+14−8=3)
62.0%
15.5 / 25
100.0%
+25
54.0%
2257
1.04
1218
1 1 0 1 = = 0 0 1 0 1 1 1 0 1 0 0 1 1 1 0 1 = 1 1
–   Diablo 0.5.1 JA2482+16
−16		(−79)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
−10
59.8%
2567
0.51
1534
= 0 1 = 1 1 = 0 1 1 1 1 1 1 0 0 = 1 0 0 = 1 = 1 = = 0 1 1 1 0 0
–   PostModernist 10162480+16
−16		(−81)22.5 − 9.5
(+19−6=7)
70.3%
22.5 / 32
100.0%
+66
58.1%
1963
0.62
1140
1 = 1 1 0 1 0 1 = = 1 = 1 0 1 1 = 1 1 = 0 0 1 1 1 1 1 1 1 = 0 1
–   Djinn 0.925x2479+16
−16		(−82)17.5 − 7.5
(+14−4=7)
70.0%
17.5 / 25
100.0%
+54
54.6%
1729
0.73
944
1 1 1 0 = 0 1 = 1 1 1 1 = = = 1 1 0 = 1 0 = 1 1 1
–   Comet B682478+14
−14		(−83)14.5 − 11.5
(+12−9=5)
55.8%
14.5 / 26
100.0%
−41
60.1%
1808
0.63
1087
0 1 = = 0 0 0 0 1 1 = = 0 1 1 0 0 0 1 1 = 1 1 1 1 1
–   Sjeng 12.132475+14
−14		(−86)16.5 − 11.5
(+12−7=9)
58.9%
16.5 / 28
100.0%
−24
54.3%
1715
1.04
931
1 = 1 0 0 0 1 0 1 = = 1 = 1 = 0 1 1 = 1 1 0 = = 1 = 1 0
–   Muse 0.899b2474+16
−16		(−87)13.5 − 12.5
(+8−7=11)
51.9%
13.5 / 26
100.0%
−75
51.1%
1478
0.88
755
0 1 0 = 1 = = 0 = 1 0 1 = = = 0 1 1 = 1 = 0 1 = 0 =
–   The Crazy Bishop 00522460+15
−15		(−101)21 − 7
(+17−3=8)
75.0%
21.0 / 28
100.0%
+77
54.9%
2135
0.71
1173
1 0 1 = 1 1 = = 1 1 = 1 1 = = 1 = 1 1 0 1 = 1 1 0 1 1 1
–   Der Bringer 1.92455+15
−15		(−106)18.5 − 5.5
(+16−3=5)
77.1%
18.5 / 24
100.0%
+96
55.2%
1759
0.72
971
1 1 1 1 1 1 0 = = 1 1 1 1 0 1 1 1 = = 1 1 0 = 1
–   Phalanx XXII Reborn JA2452+15
−15		(−109)16 − 9
(+13−6=6)
64.0%
16.0 / 25
100.0%
−8
53.9%
1798
0.75
969
1 1 0 = 0 0 1 1 1 1 1 1 0 = 1 1 = 0 = = 1 = 1 1 0
1321 games in total: 466 wins, 475 losses, 380 draws (28.8%), score: 49.7%
Average opponent: +1.2 (2562.2), average distance to opponent: 57.6

Performance

This figure shows how this engine performs depending on how strong is the opponent. Regression:

Perf = C − 0.098 [±0.303] * Opp

Where 'Opp' is the opponent's rating. 95% confidence intervals are in the brackets.

Rating changes by day

Rating changes with played games

Created in 2005-2012 by Kirill Kryukov
Updated on June 16, 2013