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
List 5.12 UCI#19  (2699+18
−18		)Quote
Author: Fritz Reul (Germany) Released: 2004-01-26Link: Homepage
This engine is stable and runs without issues.
This is the only List version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Fruit 2.3 32-bit2888+23
−23		(+189)8.5 − 16.5
(+4−12=9)
34.0%
8.5 / 25
0.0%
+83
53.7%
1575
0.68
846
0 = = 0 1 0 0 0 0 0 = 1 = = 0 = 0 = = 0 1 1 0 0 =
–   Spike 1.2 Turin2842+23
−23		(+143)7.5 − 17.5
(+2−12=11)
30.0%
7.5 / 25
0.0%
+18
61.0%
1368
0.71
835
= 0 = 0 0 0 = 1 0 = = = 0 0 = 0 0 = 0 = 0 = 1 = 0
–   Glaurung 2.0.1 64-bit2838+23
−23		(+139)8 − 22
(+3−17=10)
26.7%
8.0 / 30
0.0%
−18
58.6%
1585
0.98
929
0 0 = 0 = 0 = 0 0 1 = 1 0 = 0 0 = 0 0 = 0 0 0 = 0 0 = 1 0 =
–   Frenzee Feb08 64-bit2810+24
−24		(+111)12.5 − 19.5
(+7−14=11)
39.1%
12.5 / 32
0.0%
+38
54.8%
1828
1.01
1002
0 0 = 1 0 1 0 1 0 0 = = 1 0 = 0 = = 0 = 0 0 0 = 0 1 = = 1 = 1 0
–   Delfi 5.42801+24
−24		(+102)9 − 23
(+2−16=14)
28.1%
9.0 / 32
0.0%
−33
61.9%
1731
0.54
1071
= 1 0 = = = 0 = 0 = 0 = 0 0 0 0 = 1 0 = 0 0 0 = = = 0 0 = 0 = 0
–   Naum 2.0 64-bit2793+21
−21		(+94)12 − 20
(+5−13=14)
37.5%
12.0 / 32
0.0%
+16
54.3%
2120
0.58
1152
0 0 1 = = 0 = = 0 = = 0 = 1 = 0 = = 0 = 0 1 0 0 0 0 = 1 0 = 1 =
–   Bright 0.2c2786+23
−23		(+87)12.5 − 12.5
(+6−6=13)
50.0%
12.5 / 25
0.0%
+84
46.4%
1846
0.82
856
1 1 = 0 0 = 0 = = = 0 = 1 0 = 1 1 = = = = = 0 1 =
–   Glaurung 1.2.1 64-bit2770+24
−24		(+71)20 − 12
(+16−8=8)
62.5%
20.0 / 32
0.0%
+158
55.1%
2406
0.69
1325
0 1 1 1 0 1 1 1 0 = 1 1 = 0 1 1 1 = 1 = 1 = = 0 = 0 0 1 1 = 0 1
–   Alaric 7072768+22
−22		(+69)9 − 16
(+5−12=8)
36.0%
9.0 / 25
0.0%
−25
56.7%
1532
0.53
868
1 = 0 = = 1 0 0 1 0 0 1 1 = = 0 = = 0 0 0 = 0 0 0
–   Scorpio 2.0 32-bit2754+23
−23		(+55)8.5 − 18.5
(+5−15=7)
31.5%
8.5 / 27
0.0%
−78
58.3%
1548
0.92
902
0 1 = = = = 1 0 0 0 = 0 0 = 0 1 0 0 1 0 = 0 0 0 1 0 0
–   Scorpio 1.912739+26
−26		(+40)9.5 − 17.5
(+6−14=7)
35.2%
9.5 / 27
0.3%
−69
60.3%
2038
0.67
1228
0 0 0 = 0 0 0 = 0 = 1 0 = 0 0 1 1 0 1 0 1 = = 1 = 0 0
–   E.T. Chess 13.01.082733+21
−21		(+34)10 − 16
(+3−9=14)
38.5%
10.0 / 26
0.3%
−30
57.9%
1151
0.78
666
0 0 = = 1 = 0 0 0 1 1 0 = = 0 0 = = = = = = = = 0 =
–   WildCat 82730+22
−22		(+31)18 − 14
(+11−7=14)
56.3%
18.0 / 32
0.7%
+67
63.2%
1919
0.46
1213
= 1 = 0 0 0 1 0 = = 1 1 = 1 1 = = 1 1 = = 1 = 0 0 1 = = = 0 1 =
–   Alfil 8.1.1 Optimized2723+21
−21		(+24)13 − 13
(+9−9=8)
50.0%
13.0 / 26
2.5%
+21
56.8%
1607
0.74
913
1 0 0 1 1 = 1 = 0 = 0 = 1 1 0 = 0 0 0 = = 0 = 1 1 1
–   Movei 00.8.438 (10-10-10)2722+21
−21		(+23)12.5 − 14.5
(+7−9=11)
46.3%
12.5 / 27
2.8%
0
59.9%
1772
0.65
1062
= 0 = = = 1 = 1 = 0 0 0 1 0 0 1 = 1 1 0 0 0 = = = = 1
–   Pro Deo 1.62719+22
−22		(+20)11.5 − 14.5
(+7−10=9)
44.2%
11.5 / 26
5.7%
−17
49.9%
1578
0.64
788
0 = 0 = = = 0 0 1 1 0 = = 0 = 1 1 1 = 0 1 0 0 = 0 1
–   Delfi 5.22718+21
−21		(+19)12 − 12
(+5−5=14)
50.0%
12.0 / 24
5.7%
+14
58.5%
778
0.62
455
1 = = 1 = = 0 = = = 1 1 = 0 0 0 = = = = = 0 1 =
–   WildCat 72718+19
−19		(+19)13 − 19
(+6−12=14)
40.6%
13.0 / 32
4.8%
−38
61.7%
1966
0.42
1214
= 1 1 = 0 0 = 0 0 0 = 1 = = 1 = = = 0 1 0 0 0 = = = 1 0 = 0 0 =
–   Zappa 1.1 64-bit2717+19
−19		(+18)15.5 − 16.5
(+10−11=11)
48.4%
15.5 / 32
5.0%
+7
53.1%
2020
0.84
1073
= = 0 = 0 1 0 0 = 1 0 1 0 1 0 = 1 0 = 0 = 1 1 = = 1 1 = 0 = 1 0
–   Slow Chess Blitz WV2.12716+19
−19		(+17)16 − 16
(+11−11=10)
50.0%
16.0 / 32
7.2%
+18
63.1%
2216
0.53
1399
1 1 1 0 0 = 0 0 = 0 0 1 = 1 = 1 1 1 = = 1 0 = = 0 1 0 0 1 = = 0
–   Alaric 7042713+26
−26		(+14)19.5 − 12.5
(+12−5=15)
60.9%
19.5 / 32
16.9%
+81
58.1%
1622
0.64
943
= = 0 = 1 = = = 1 1 = = 1 1 1 0 1 = = 0 = 1 = 1 = 1 0 = = 1 0 1
–   Frenzee 3.0 64-bit2711+19
−19		(+12)12.5 − 14.5
(+8−10=9)
46.3%
12.5 / 27
14.7%
−12
60.5%
1604
0.62
970
1 0 = = 1 0 0 = 1 = = 0 0 1 0 = 1 0 = 0 = 1 1 1 = 0 0
–   Colossus 2007d2707+20
−20		(+8)9 − 15
(+3−9=12)
37.5%
9.0 / 24
24.1%
−68
58.2%
1049
0.52
611
0 = = 0 0 0 = = 0 = = = = 1 = 1 0 1 = 0 0 0 = =
–   Pharaon 3.5.12704+19
−19		(+5)18 − 14
(+13−9=10)
56.3%
18.0 / 32
31.7%
+47
59.2%
2409
0.58
1426
0 0 1 1 = 1 0 = 1 1 1 1 = 0 1 = 1 = = 0 1 0 0 1 1 = = = = 0 1 0
–   SOS 5.12697+18
−18		(−2)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
56.9%
−12
55.5%
2553
0.78
1416
0 1 = 1 0 0 1 = = 0 0 = 1 0 0 1 0 0 = = 1 1 1 1 = 0 0 1 1 0 0 1
–   Colossus 2007c2694+19
−19		(−5)13 − 14
(+5−6=16)
48.1%
13.0 / 27
65.9%
−12
57.5%
1147
0.56
660
= = 0 = = 1 0 = = 1 0 = 1 = 0 = 0 = = = 1 0 = = = 1 =
–   Ruffian 1.0.52687+17
−17		(−12)14 − 15
(+8−9=12)
48.3%
14.0 / 29
84.3%
−20
62.0%
1438
0.51
891
= = = 0 1 0 1 = 1 = 1 0 0 = = 0 = 1 1 = = 1 0 = = 0 1 0 0
–   Petir 4.392682+18
−18		(−17)15 − 12
(+11−8=8)
55.6%
15.0 / 27
93.0%
+20
57.4%
2003
0.61
1149
1 0 1 = = 1 0 = 1 1 0 = 1 1 0 1 0 0 1 1 = = 0 1 = = 0
–   Pseudo 0.7c2680+18
−18		(−19)15 − 17
(+9−11=12)
46.9%
15.0 / 32
95.0%
−41
59.0%
2075
0.59
1225
= 0 = 1 1 0 0 = = 0 1 0 = = = 1 = 0 0 = = 1 = 0 = 1 0 0 1 0 1 1
–   Aristarch 4.502671+18
−18		(−28)22 − 10
(+16−4=12)
68.8%
22.0 / 32
99.3%
+91
62.7%
1727
0.51
1082
1 = 1 = 1 = 0 = 1 1 1 = 1 = = 1 0 = 0 1 = 1 = 1 0 = 1 1 1 1 = 1
–   Petir 4.9999992670+19
−19		(−29)11 − 12
(+7−8=8)
47.8%
11.0 / 23
99.3%
−42
62.0%
1270
0.78
788
= 1 0 0 = 0 1 = 0 1 = 0 0 = = = 1 = 1 0 1 0 1
–   Hamsters 0.62669+18
−18		(−30)6.5 − 15.5
(+0−9=13)
29.5%
6.5 / 22
99.4%
−144
57.9%
893
0.72
517
0 = 0 = 0 = = = 0 = 0 = = = = = 0 0 0 0 = =
–   The Baron 2.23 64-bit2669+19
−19		(−30)17.5 − 14.5
(+11−8=13)
54.7%
17.5 / 32
99.4%
−2
53.8%
1590
0.93
855
0 = = = 0 1 = = = 1 1 1 0 = 1 1 1 1 0 = 0 0 0 0 1 = = = = = 1 1
–   Booot 4.13.12668+18
−18		(−31)13 − 14
(+8−9=10)
48.1%
13.0 / 27
99.7%
−43
58.8%
1865
0.53
1096
= 0 1 = 1 0 0 = 1 1 0 0 1 1 = = 1 = 0 0 = = 1 = = 0 0
–   BugChess2 1.5.22661+18
−18		(−38)9 − 13
(+4−8=10)
40.9%
9.0 / 22
99.9%
−95
55.8%
996
0.71
556
= = = = 0 0 0 1 = = = = 0 0 = = 1 1 0 1 0 0
–   Jonny 2.832652+17
−17		(−47)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
100.0%
−12
54.1%
2748
0.67
1488
= 0 1 1 0 1 1 0 1 = 0 1 0 1 0 0 1 = = 0 = 1 0 1 1 0 0 1 1 = 1 =
–   Crafty 21.5 64-bit PS2652+17
−17		(−47)13.5 − 8.5
(+10−5=7)
61.4%
13.5 / 22
100.0%
+25
57.9%
1732
0.72
1003
1 1 1 1 0 = 1 = = 0 1 = 0 = 1 = 0 1 0 1 = 1
–   The Baron 1.8.12651+18
−18		(−48)18 − 9
(+15−6=6)
66.7%
18.0 / 27
100.0%
+70
57.2%
1871
0.74
1071
0 0 = 0 1 0 = 1 1 1 1 = 1 0 1 = 1 1 = 1 = 1 1 1 0 1 1
–   Anaconda 2.0.12644+17
−17		(−55)13.5 − 12.5
(+9−8=9)
51.9%
13.5 / 26
100.0%
−46
57.0%
1613
0.60
919
0 1 = 0 0 = 0 1 0 1 = = = = = 1 1 0 0 0 1 1 1 = 1 =
–   Movei 00.8.4032643+22
−22		(−56)13.5 − 12.5
(+10−9=7)
51.9%
13.5 / 26
100.0%
−43
53.9%
2250
0.62
1213
= = 0 = 1 0 1 1 1 = 1 0 1 0 1 0 = 0 0 = = 1 1 1 0 0
–   Fritz 5.322643+17
−17		(−56)15 − 15
(+7−7=16)
50.0%
15.0 / 30
100.0%
−52
61.8%
1251
0.48
773
1 1 0 0 = = = 0 = = = = 1 0 1 = 1 = 0 = = = 0 = 0 1 1 = = =
–   Ktulu 4.22634+17
−17		(−65)18.5 − 10.5
(+14−6=9)
63.8%
18.5 / 29
100.0%
+26
62.2%
2106
0.57
1310
0 = = 1 0 1 1 1 1 1 1 1 1 = 1 = 1 1 = = 1 = 0 0 0 1 = = 0
–   Thinker 4.7a2634+17
−17		(−65)21 − 9
(+16−4=10)
70.0%
21.0 / 30
100.0%
+69
64.8%
1985
0.58
1286
1 1 = = = 0 = 1 = 1 1 1 = 1 1 1 1 0 0 1 1 = 1 = 1 = = 1 0 1
–   SmarThink 0.17a2633+16
−16		(−66)19 − 13
(+14−8=10)
59.4%
19.0 / 32
100.0%
−3
61.0%
1984
0.44
1211
= 1 = 1 0 = 0 0 1 1 0 = 1 = = 1 = 1 1 = 0 1 1 = = 1 1 1 0 0 1 0
–   Ufim 8.022628+18
−18		(−71)11 − 17
(+2−8=18)
39.3%
11.0 / 28
100.0%
−127
53.6%
946
0.82
507
0 0 0 = = 0 = 0 = = = = = = = = 0 = = 0 = = 1 0 = = 1 =
–   Fritz 6 Light2627+19
−19		(−72)22.5 − 9.5
(+19−6=7)
70.3%
22.5 / 32
100.0%
+75
61.7%
2283
0.76
1409
0 = 0 1 0 1 1 1 = 1 1 1 1 = 1 1 = 1 = = 1 1 0 1 0 1 1 = 1 1 0 1
1303 games in total: 387 wins, 426 losses, 490 draws (37.6%), score: 48.5%
Average opponent: +9.9 (2708.9), average distance to opponent: 48.4

Performance

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

Perf = C + 0.231 [±0.273] * 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