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
Snitch 1.6.2 32-bit UCI#57–58  (2521+15
−15		)Quote
Author: Klaus Friedel (Germany) Released: 2006-05-14Link: Homepage
This engine is stable and runs without issues.
This is the only Snitch version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Fritz 5.322643+17
−17		(+122)7.5 − 21.5
(+2−16=11)
25.9%
7.5 / 29
0.0%
−33
54.9%
1515
0.72
832
0 = = 0 0 0 0 0 1 = 0 0 0 = = 0 = 0 = = 1 0 0 0 0 0 = = =
–   Ktulu 4.22634+17
−17		(+113)6.5 − 17.5
(+4−15=5)
27.1%
6.5 / 24
0.0%
−56
54.2%
1737
1.09
941
0 0 0 0 0 0 1 0 = 0 0 0 1 = = 1 0 1 0 = 0 = 0 0
–   Thinker 4.7a2634+17
−17		(+113)4.5 − 18.5
(+3−17=3)
19.6%
4.5 / 23
0.0%
−134
56.2%
2124
0.58
1194
0 0 0 0 0 1 1 0 0 0 0 0 0 0 = = 1 0 0 0 0 = 0
–   SmarThink 0.17a2633+16
−16		(+112)7 − 21
(+5−19=4)
25.0%
7.0 / 28
0.0%
−90
56.2%
2036
0.85
1145
0 0 = 1 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 = 0 0 0 1 = = 0 1
–   Ufim 8.022628+18
−18		(+107)14 − 13
(+8−7=12)
51.9%
14.0 / 27
0.0%
+116
54.5%
1452
0.98
792
0 = 0 = = = 1 1 1 = = 1 0 1 1 = 0 = 0 0 1 = = 1 = = 0
–   Fritz 6 Light2627+19
−19		(+106)9 − 15
(+4−10=10)
37.5%
9.0 / 24
0.0%
+34
60.1%
1475
0.57
886
1 0 1 0 = 0 0 = 1 0 0 0 = = = = 0 = = = = 1 0 0
–   Trace 1.37a2622+17
−17		(+101)13 − 15
(+10−12=6)
46.4%
13.0 / 28
0.0%
+72
53.5%
2290
0.99
1225
= 0 0 1 0 1 1 0 1 = 0 0 = 0 0 1 1 1 0 0 = 1 1 = = 1 0 0
–   AnMon 5.602621+18
−18		(+100)9 − 16
(+6−13=6)
36.0%
9.0 / 25
0.0%
+7
55.9%
1582
0.72
885
0 1 = 0 0 0 0 0 0 1 1 0 1 = = = 0 0 0 1 = 1 0 = 0
–   E.T. Chess 18.11.052620+21
−21		(+99)9 − 17
(+7−15=4)
34.6%
9.0 / 26
0.0%
−15
54.0%
1884
0.63
1018
0 0 1 0 0 0 0 1 = = = 0 0 0 0 1 0 1 = 0 0 1 1 0 0 1
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17		(+93)11 − 13
(+9−11=4)
45.8%
11.0 / 24
0.0%
+61
50.5%
1966
1.05
993
1 1 0 0 1 = 1 1 0 1 0 = 0 0 1 = 1 0 0 1 = 0 0 0
–   Yace 0.99.872609+17
−17		(+88)7 − 19
(+3−15=8)
26.9%
7.0 / 26
0.0%
−70
59.8%
1743
0.48
1042
0 0 0 1 0 0 0 0 = 0 0 0 1 = = = = 0 0 1 0 0 = = 0 =
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19		(+86)9 − 17
(+6−14=6)
34.6%
9.0 / 26
0.0%
−24
54.2%
1790
1.00
970
1 = 0 0 1 1 = = 0 0 = 1 1 0 0 0 0 0 = 0 1 = 0 0 0 0
–   Hamsters 0.52595+21
−21		(+74)9.5 − 15.5
(+5−11=9)
38.0%
9.5 / 25
0.0%
−4
56.7%
1830
0.73
1038
0 = = 0 1 0 = = 0 0 1 1 0 0 = = 1 0 0 = = 0 0 = 1
–   Pepito 1.59 32-bit2595+19
−19		(+74)10 − 13
(+7−10=6)
43.5%
10.0 / 23
0.0%
+27
54.0%
1953
0.79
1054
0 0 0 = 0 0 1 = 0 1 0 = 0 1 = 0 1 = 0 = 1 1 1
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18		(+63)6 − 17
(+3−14=6)
26.1%
6.0 / 23
0.0%
−108
56.1%
1535
0.70
861
0 0 0 = = = = 0 1 0 0 0 0 = = 0 0 1 1 0 0 0 0
–   Green Light Chess 3.002582+17
−17		(+61)8.5 − 15.5
(+6−13=5)
35.4%
8.5 / 24
0.0%
−47
53.4%
1807
0.49
965
0 0 = 0 0 = 1 0 = 0 1 0 = 0 1 0 0 1 1 0 0 0 1 =
–   Tao 5.62574+17
−17		(+53)11.5 − 13.5
(+9−11=5)
46.0%
11.5 / 25
0.0%
+29
55.1%
1851
0.75
1020
= 1 1 0 0 0 = 0 = = 0 0 = 1 1 0 1 0 1 1 0 1 0 0 1
–   Cerebro 3.03d2572+19
−19		(+51)13 − 19
(+11−17=4)
40.6%
13.0 / 32
0.0%
−21
49.7%
2718
0.74
1351
0 1 0 0 0 1 1 1 1 0 1 1 1 0 1 0 0 1 0 0 0 = = 1 = 0 = 0 0 0 0 0
–   Twisted Logic 20080404x2568+18
−18		(+47)6.5 − 15.5
(+4−13=5)
29.5%
6.5 / 22
0.0%
−105
51.7%
1686
0.82
872
0 = = 0 0 = 1 = 0 0 1 0 0 0 1 1 0 0 0 = 0 0
–   Arasan 10.0 64-bit2564+17
−17		(+43)12 − 15
(+7−10=10)
44.4%
12.0 / 27
0.0%
+8
59.2%
1629
0.76
964
1 0 1 0 1 0 0 0 = = = = 0 1 0 1 1 0 0 = 1 = 0 = = = =
–   Abrok 5.02561+17
−17		(+40)9 − 13
(+5−9=8)
40.9%
9.0 / 22
0.0%
−22
56.8%
1332
0.73
757
= 0 0 1 0 = 0 0 1 0 = = = 0 = 0 0 = 1 1 1 =
–   Amyan 1.5972552+17
−17		(+31)16.5 − 11.5
(+14−9=5)
58.9%
16.5 / 28
0.2%
+99
58.9%
2112
0.63
1243
1 0 1 0 1 0 0 = 0 0 = 1 1 1 1 1 1 = 1 1 1 0 0 1 1 0 = =
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18		(+30)11.5 − 10.5
(+8−7=7)
52.3%
11.5 / 22
0.4%
+50
60.6%
1380
0.89
836
= = 1 1 1 = 0 1 0 1 = 1 0 0 0 1 0 1 = = = 0
–   SpiderChess 0706032546+17
−17		(+25)12 − 18
(+8−14=8)
40.0%
12.0 / 30
0.9%
−40
56.0%
1953
0.57
1093
0 1 0 = 0 = 0 1 0 0 0 1 1 0 = = 0 0 1 0 1 0 0 = 0 = = 1 = 1
–   Quark 2.352536+16
−16		(+15)11.5 − 11.5
(+8−8=7)
50.0%
11.5 / 23
8.1%
+13
58.1%
1443
0.79
839
1 = = 0 0 0 1 1 0 = = 1 = 0 0 1 = = 0 0 1 1 1
–   Gaia 3.5 64-bit2536+17
−17		(+15)15 − 17
(+11−13=8)
46.9%
15.0 / 32
8.2%
−9
56.9%
2519
0.80
1433
1 0 = 0 = 0 = 0 0 0 = 0 0 1 1 0 1 1 1 1 0 1 = = 0 0 = 1 1 1 0 =
–   King of Kings 2.562536+18
−18		(+15)11.5 − 15.5
(+9−13=5)
42.6%
11.5 / 27
8.6%
−39
53.7%
2156
0.67
1158
= 0 1 = 0 1 = 0 0 1 1 0 1 0 1 0 = = 1 0 0 1 0 0 0 0 1
–   LambChop 10.992531+17
−17		(+10)11 − 13
(+7−9=8)
45.8%
11.0 / 24
18.3%
−13
57.4%
1439
0.69
826
= = 0 = 0 1 1 = 1 0 0 0 0 1 0 0 = = 1 0 1 = = 1
–   Dragon 4.62524+16
−16		(+3)13 − 12
(+9−8=8)
52.0%
13.0 / 25
37.3%
+18
57.0%
1784
0.79
1016
0 = = 0 1 = = 1 = 0 0 1 1 = 1 = 0 = 1 1 0 1 1 0 0
–   Nejmet 3.072521+16
−16		(0)15.5 − 12.5
(+14−11=3)
55.4%
15.5 / 28
48.3%
+43
55.5%
2296
0.83
1275
1 1 1 1 1 1 0 0 0 1 0 0 0 = 1 0 1 = 1 0 0 1 1 0 1 0 = 1
–   RomiChess P3k 64-bit2502+18
−18		(−19)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
94.5%
−51
60.9%
2426
0.91
1478
= 0 1 0 1 1 0 = 0 1 0 0 = 0 1 1 0 0 = 1 = 1 1 0 1 0 0 1 0 = 0 =
–   Amy 0.8.7b DC2500+17
−17		(−21)14.5 − 13.5
(+12−11=5)
51.8%
14.5 / 28
97.1%
−4
52.3%
2081
1.08
1088
0 = 1 1 0 1 = 0 0 0 = 0 1 = 0 0 1 0 1 0 1 1 1 1 = 1 0 1
–   KnightDreamer 3.32499+16
−16		(−22)11.5 − 14.5
(+10−13=3)
44.2%
11.5 / 26
97.8%
−64
58.3%
2071
0.57
1207
0 = 0 = 0 1 0 0 0 1 1 0 0 1 1 0 1 0 = 0 1 1 1 1 0 0
–   Francesca MAD 0.13 Nobook2493+19
−19		(−28)10 − 12
(+5−7=10)
45.5%
10.0 / 22
99.1%
−57
63.3%
1029
0.78
651
1 1 = 0 = = = 0 = 0 = = = 1 0 = 1 0 0 = 0 1
–   Leila 0.53h2490+17
−17		(−31)12 − 13
(+9−10=6)
48.0%
12.0 / 25
99.7%
−44
51.8%
1899
0.99
983
0 0 = = 0 0 = 1 1 = 0 1 = 1 1 0 0 1 = 0 1 0 1 1 0
–   Diablo 0.5.1 JA2482+16
−16		(−39)17.5 − 14.5
(+9−6=17)
54.7%
17.5 / 32
100.0%
−13
58.5%
1488
0.56
870
1 1 = = 1 0 1 1 = = 0 = 0 = = 0 1 = = = = 1 1 = = = 1 = 0 = = 0
–   PostModernist 10162480+16
−16		(−41)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
+95
56.2%
2468
0.80
1388
1 0 1 0 1 0 1 = 0 1 1 1 1 1 1 = 1 1 = 1 = 1 0 0 = 1 1 1 1 0 0 1
–   Djinn 0.925x2479+16
−16		(−42)17.5 − 10.5
(+14−7=7)
62.5%
17.5 / 28
100.0%
+47
51.8%
2042
0.76
1057
1 0 1 = 1 1 1 0 1 1 1 1 0 = = = = = = 1 0 0 1 1 1 1 0 0
–   Comet B682478+14
−14		(−43)15 − 11
(+14−10=2)
57.7%
15.0 / 26
100.0%
+25
55.7%
2253
0.88
1255
1 0 = 1 1 1 0 0 1 0 1 1 1 1 1 = 1 0 0 1 0 0 0 1 0 1
–   Sjeng 12.132475+14
−14		(−46)14 − 10
(+11−7=6)
58.3%
14.0 / 24
100.0%
+11
53.7%
1847
1.06
992
1 1 0 0 1 = 1 0 0 = 1 = 1 = 0 1 1 1 = = 1 1 0 0
–   Muse 0.899b2474+16
−16		(−47)15 − 12
(+10−7=10)
55.6%
15.0 / 27
100.0%
−10
49.1%
1618
0.83
794
= 0 0 0 1 1 = 1 1 = 1 = = = = 1 = 1 0 = 1 0 0 0 1 1 =
–   Queen 4.032466+17
−17		(−55)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
+6
59.2%
2009
0.57
1190
= 0 1 0 0 1 = 1 = 1 1 1 = = 0 1 1 0 1 0 0 = = 1 1 = = = = 1 1 =
–   The Crazy Bishop 00522460+15
−15		(−61)17 − 10
(+13−6=8)
63.0%
17.0 / 27
100.0%
+28
55.5%
1824
0.76
1013
1 = = 1 = 1 0 1 0 1 = 1 1 0 = 1 = 1 1 0 1 = 1 0 = 0 1
–   Patzer 3.802460+16
−16		(−61)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
+18
52.7%
1940
1.13
1023
1 0 1 0 1 1 1 1 1 = 1 0 1 = 1 0 1 = 1 = = 1 = 1 = 0 1 1 0 0 0 0
–   Der Bringer 1.92455+15
−15		(−66)14 − 10
(+10−6=8)
58.3%
14.0 / 24
100.0%
−14
57.3%
1274
0.79
730
1 1 0 = 0 0 1 1 = = = 1 = 1 1 1 0 0 1 = 1 = 0 =
–   Gosu 0.162455+16
−16		(−66)20 − 12
(+17−9=6)
62.5%
20.0 / 32
100.0%
+27
53.0%
2549
0.98
1352
1 0 1 = 0 1 1 0 = 1 0 = = 1 1 0 0 0 0 1 1 = = 1 1 1 1 1 0 1 1 1
–   Phalanx XXII Reborn JA2452+15
−15		(−69)18 − 10
(+14−6=8)
64.3%
18.0 / 28
100.0%
+25
55.0%
1950
0.86
1072
1 0 = 1 = = = 1 = 0 0 1 1 0 1 1 = 1 1 = 1 1 1 1 1 0 = 0
–   Homer 2.012452+17
−17		(−69)19.5 − 12.5
(+18−11=3)
60.9%
19.5 / 32
100.0%
+19
50.3%
2574
1.00
1296
1 1 1 1 = 1 1 1 = 1 0 1 1 1 0 1 1 1 0 1 0 1 0 0 0 0 1 = 0 0 1 0
–   Betsy 6.51 Nobook2450+15
−15		(−71)13.5 − 14.5
(+12−13=3)
48.2%
13.5 / 28
100.0%
−85
55.4%
2577
0.81
1427
1 1 1 0 = 1 1 0 0 1 = 0 0 0 0 1 0 0 0 1 1 = 1 1 1 0 0 0
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(−73)21 − 11
(+18−8=6)
65.6%
21.0 / 32
100.0%
+44
54.4%
2573
0.70
1399
1 0 1 = 1 1 1 = 1 0 1 = 0 1 1 1 1 1 = 0 1 1 0 0 0 = 0 1 = 1 1 1
–   Amateur 2.822446+15
−15		(−75)20.5 − 9.5
(+17−6=7)
68.3%
20.5 / 30
100.0%
+59
53.9%
2243
1.15
1209
1 1 1 1 = 1 1 0 0 = = = 1 = 0 1 1 1 0 1 1 = 1 1 1 0 = 0 1 1
–   Thor's Hammer 2.28 32-bit2417+15
−15		(−104)20 − 5
(+17−2=6)
80.0%
20.0 / 25
100.0%
+118
53.0%
1370
0.94
726
1 0 = 1 1 1 1 1 = 1 1 1 = 1 = 1 1 1 = = 1 1 1 1 0
–   Arion 1.72415+16
−16		(−106)17.5 − 9.5
(+13−5=9)
64.8%
17.5 / 27
100.0%
−8
59.8%
1799
0.65
1075
1 1 = 1 = 1 1 = = 1 1 0 0 0 = = 1 1 1 1 = 0 1 = 0 = 1
–   AICE 0.99.22411+16
−16		(−110)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
−48
57.0%
2157
0.75
1230
1 0 1 1 = 0 = 1 1 = 1 1 1 = 0 0 0 1 1 = 1 = = = = = 1 0 = 1 0 =
–   Chezzz 1.0.32409+15
−15		(−112)22 − 6
(+21−5=2)
78.6%
22.0 / 28
100.0%
+137
52.9%
2581
0.90
1366
0 1 = 1 1 1 0 = 1 1 1 1 0 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(−119)17 − 10
(+13−6=8)
63.0%
17.0 / 27
100.0%
−25
50.4%
1704
0.75
859
0 1 = 0 1 = 0 1 0 1 1 = 0 = 1 0 1 1 = 1 1 = 1 = = 1 1
–   Averno 0.812396+15
−15		(−125)17.5 − 10.5
(+14−7=7)
62.5%
17.5 / 28
100.0%
−35
52.8%
1652
0.84
873
= 1 1 1 = 0 = 0 0 = 1 1 1 0 1 1 1 = 0 0 1 1 = 1 1 1 = 0
–   Scidlet 3.61 64-bit JA2390+15
−15		(−131)14.5 − 8.5
(+11−5=7)
63.0%
14.5 / 23
100.0%
−36
58.5%
1394
0.78
815
= = 0 1 0 1 = 1 1 0 = = 0 1 1 1 1 1 1 1 = 0 =
–   Eeyore 1.482384+15
−15		(−137)17 − 9
(+14−6=6)
65.4%
17.0 / 26
100.0%
−24
55.5%
1747
0.85
970
= 1 = 1 1 0 = = 1 1 0 0 = 1 1 1 0 1 1 = 1 1 0 1 0 1
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(−166)20.5 − 6.5
(+17−3=7)
75.9%
20.5 / 27
100.0%
+21
52.6%
1629
0.81
857
= 1 = 1 0 1 0 1 1 1 1 1 1 1 = 1 1 = = 1 1 1 1 1 = 0 =
1614 games in total: 617 wins, 591 losses, 406 draws (25.2%), score: 50.8%
Average opponent: −7.2 (2513.8), average distance to opponent: 67.2

Performance

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

Perf = C − 0.126 [±0.181] * 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