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
Queen 4.03 UCI#70  (2466+17
−17		)Quote
Author: Leen Ammeraal (Netherlands) Released: 2007-12-29Link: Homepage
This engine is stable and runs without issues.
This is the only Queen version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Quark 2.352536+16
−16		(+70)13.5 − 18.5
(+8−13=11)
42.2%
13.5 / 32
0.0%
+16
60.1%
1672
0.58
1005
= 0 0 0 1 1 = 0 = 1 = 0 0 0 0 = = 0 = 0 0 = 1 = = 1 1 0 = 1 0 1
–   Gaia 3.5 64-bit2536+17
−17		(+70)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−18
57.5%
2091
0.75
1202
0 0 = = = 1 1 1 0 1 0 = 1 1 0 = = 0 0 = 0 0 0 0 0 1 1 0 = 0 0 0
–   King of Kings 2.562536+18
−18		(+70)16 − 16
(+12−12=8)
50.0%
16.0 / 32
0.0%
+70
55.0%
2593
0.56
1426
0 0 0 1 1 0 1 = 1 1 0 = 0 1 0 0 0 1 = 0 1 1 = 0 = = = 0 1 1 1 =
–   LambChop 10.992531+17
−17		(+65)14 − 18
(+11−15=6)
43.8%
14.0 / 32
0.0%
+17
59.9%
2417
0.55
1447
1 0 = 1 0 = 1 1 = 0 0 0 = 1 = 0 0 0 0 1 1 0 0 0 1 = 1 0 1 0 0 1
–   Dragon 4.62524+16
−16		(+58)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
−19
58.2%
2464
0.72
1433
0 0 = 1 1 0 = 0 1 0 = 1 0 = = 1 0 1 0 = 1 1 0 0 0 0 0 0 0 0 = 1
–   Nejmet 3.072521+16
−16		(+55)12 − 20
(+6−14=12)
37.5%
12.0 / 32
0.0%
−25
58.3%
2048
0.63
1194
0 0 = 1 0 0 0 = = 0 0 = = 0 0 1 0 1 = = = = 1 = 0 1 0 = 0 0 = 1
–   Snitch 1.6.2 32-bit2521+15
−15		(+55)13 − 19
(+7−13=12)
40.6%
13.0 / 32
0.0%
−6
59.2%
2009
0.57
1190
= 1 0 1 1 0 = 0 = 0 0 0 = = 1 0 0 1 0 1 1 = = 0 0 = = = = 0 0 =
–   RomiChess P3k 64-bit2502+18
−18		(+36)16 − 16
(+9−9=14)
50.0%
16.0 / 32
0.2%
+38
65.9%
1732
0.58
1141
1 0 = 0 = 1 0 1 = 1 1 = = 0 = = = 0 = 1 1 = = 0 1 0 = 1 = = 0 0
–   Amy 0.8.7b DC2500+17
−17		(+34)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
0.2%
−20
58.1%
2446
0.66
1422
0 1 1 1 = 0 0 1 0 0 0 0 0 1 0 1 0 0 1 = = = = 1 1 = 0 = = 0 = 0
–   KnightDreamer 3.32499+16
−16		(+33)14.5 − 17.5
(+9−12=11)
45.3%
14.5 / 32
0.2%
0
56.0%
2232
0.66
1250
0 = = 1 = 0 0 1 1 0 0 = = 0 = = 0 1 0 0 1 1 1 1 0 = = 1 = 0 = 0
–   Francesca MAD 0.13 Nobook2493+19
−19		(+27)17 − 15
(+14−12=6)
53.1%
17.0 / 32
1.6%
+50
63.2%
2694
0.79
1702
1 1 = 1 0 1 = 1 0 1 1 1 1 0 0 = 1 = = = 0 1 0 1 0 0 0 0 0 1 1 0
–   Leila 0.53h2490+17
−17		(+24)10.5 − 21.5
(+8−19=5)
32.8%
10.5 / 32
1.9%
−110
56.7%
2672
0.73
1515
= 0 0 1 0 1 0 0 = 1 0 1 0 0 1 = 0 0 0 0 0 0 1 1 0 0 0 1 0 = = 0
–   Diablo 0.5.1 JA2482+16
−16		(+16)15 − 17
(+10−12=10)
46.9%
15.0 / 32
8.2%
−4
57.3%
1945
0.65
1115
= 0 0 0 = 0 = 1 1 = 1 1 0 1 1 0 1 0 = 0 1 = 0 0 = = 1 = 1 0 0 =
–   PostModernist 10162480+16
−16		(+14)18.5 − 13.5
(+11−6=15)
57.8%
18.5 / 32
11.5%
+62
62.5%
1732
0.54
1082
= 0 1 1 1 = 1 = 1 1 1 = = = 1 = 1 = = = 0 = 1 0 = 0 = 0 0 = = 1
–   Djinn 0.925x2479+16
−16		(+13)11 − 21
(+6−16=10)
34.4%
11.0 / 32
12.4%
−93
55.5%
2142
0.58
1188
0 0 0 1 = 0 = = = = 0 0 0 0 0 = 1 1 1 0 0 = 1 = 0 0 0 = = 0 0 1
–   Comet B682478+14
−14		(+12)17.5 − 14.5
(+12−9=11)
54.7%
17.5 / 32
13.7%
+42
55.7%
2080
0.74
1159
= 0 0 1 = = 1 = 1 0 0 0 1 1 1 = 0 0 1 1 = 0 = 1 1 1 = 0 = = 1 =
–   Sjeng 12.132475+14
−14		(+9)12.5 − 19.5
(+6−13=13)
39.1%
12.5 / 32
20.1%
−61
56.8%
1666
0.85
947
1 = 1 0 0 = = 1 0 0 1 1 = 0 0 = = 1 = = 0 0 0 = 0 = = = 0 = 0 0
–   Muse 0.899b2474+16
−16		(+8)18 − 14
(+13−9=10)
56.3%
18.0 / 32
23.4%
+50
51.5%
2017
0.77
1038
1 1 1 1 = 0 0 = = = 0 = = 1 0 1 = = 1 1 = 1 1 1 0 0 1 0 0 0 1 =
–   The Crazy Bishop 00522460+15
−15		(−6)16 − 16
(+9−9=14)
50.0%
16.0 / 32
70.1%
−4
59.7%
1892
0.65
1129
1 = 1 0 1 = 1 = = 0 1 0 1 0 0 = 1 = = 1 0 0 0 = = = = = = 0 1 =
–   Patzer 3.802460+16
−16		(−6)15.5 − 16.5
(+9−10=13)
48.4%
15.5 / 32
70.6%
−16
52.9%
1596
1.05
844
= 0 = = 0 1 = = 1 1 1 0 0 0 1 = 0 = = 0 0 0 1 1 = 1 = = = = 1 0
–   Der Bringer 1.92455+15
−15		(−11)22 − 10
(+17−5=10)
68.8%
22.0 / 32
83.5%
+118
56.3%
2094
0.61
1178
= 1 = 1 0 = 0 1 1 1 = 1 = 1 1 1 = 1 = 0 0 1 = = 0 1 = 1 1 1 1 1
–   Gosu 0.162455+16
−16		(−11)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
83.3%
−1
55.8%
2406
0.84
1343
0 1 0 = 1 0 0 = = 1 1 0 0 1 1 = 0 0 0 1 1 = 0 0 0 1 1 1 = = 1 1
–   Phalanx XXII Reborn JA2452+15
−15		(−14)17 − 15
(+13−11=8)
53.1%
17.0 / 32
89.4%
+8
53.2%
2472
0.64
1315
1 0 1 1 1 0 1 1 = = 1 = = 0 0 0 0 = 1 1 1 0 1 0 0 0 0 1 = = 1 =
–   Homer 2.012452+17
−17		(−14)14.5 − 17.5
(+9−12=11)
45.3%
14.5 / 32
89.0%
−43
57.0%
1908
0.77
1088
0 0 1 = 1 1 0 0 = 0 0 0 0 1 1 = 1 = 0 = 0 = = 0 = 1 = = 1 0 1 =
–   Betsy 6.51 Nobook2450+15
−15		(−16)15.5 − 16.5
(+10−11=11)
48.4%
15.5 / 32
91.9%
−28
57.6%
2108
0.71
1214
1 1 0 = 0 0 = 0 1 0 1 1 0 = = 0 = 1 = = 0 0 1 1 = 0 = 0 1 = = 1
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(−18)13 − 19
(+8−14=10)
40.6%
13.0 / 32
94.0%
−82
54.6%
2137
0.62
1167
= 1 = 0 1 0 = = 0 1 = 0 = = 1 0 1 0 1 1 = 0 1 0 0 0 0 0 = = 0 0
–   Amateur 2.822446+15
−15		(−20)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
96.2%
−29
55.7%
2268
0.99
1264
0 1 0 0 = 1 1 0 0 1 0 1 = 1 = 0 0 1 1 1 1 1 0 0 = 1 0 0 0 = = =
–   Tytan 9.32 64-bit2429+17
−17		(−37)18 − 14
(+13−9=10)
56.3%
18.0 / 32
99.9%
+6
  
1 1 1 1 0 = 0 1 1 0 = 0 = 0 = 1 = 1 0 1 = = = 0 1 1 0 1 = 1 0 =
–   Sage 3.532424+19
−19		(−42)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
100.0%
−9
56.2%
1996
0.93
1122
1 0 1 1 0 0 1 0 1 1 1 1 0 = 1 = = 0 0 1 0 0 = = = 1 = = 0 1 1 =
–   Sorgenkind 0.42421+18
−18		(−45)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
100.0%
+13
55.0%
2487
0.93
1369
1 1 1 0 1 0 1 1 = 1 0 = 0 0 0 0 = 1 1 0 0 1 1 1 = 1 = 1 0 1 = =
–   Horizon 4.42419+18
−18		(−47)14.5 − 17.5
(+9−12=11)
45.3%
14.5 / 32
100.0%
−80
57.6%
1937
1.19
1116
0 = 0 1 1 = 0 0 1 0 1 0 1 = = = 1 = 1 = = 0 0 0 0 = 1 0 0 = = 1
–   Thor's Hammer 2.28 32-bit2417+15
−15		(−49)20.5 − 11.5
(+16−7=9)
64.1%
20.5 / 32
100.0%
+48
55.1%
2728
0.72
1504
0 1 = 0 1 1 1 = = = = 0 1 0 0 0 0 = 1 1 1 = 1 1 1 1 1 1 = = 1 1
–   Arion 1.72415+16
−16		(−51)20.5 − 11.5
(+15−6=11)
64.1%
20.5 / 32
100.0%
+41
59.9%
2108
0.69
1263
= 1 1 = 0 0 1 1 1 0 1 = = 1 1 = = 1 1 = 0 0 1 = 1 0 = = 1 1 = 1
–   AICE 0.99.22411+16
−16		(−55)19.5 − 12.5
(+13−6=13)
60.9%
19.5 / 32
100.0%
+14
58.2%
1477
0.71
859
0 1 1 = 1 0 = 1 = 0 0 = 1 1 = = = 1 1 = 1 = 1 0 = 1 = = 0 1 1 =
–   Chezzz 1.0.32409+15
−15		(−57)19 − 13
(+14−8=10)
59.4%
19.0 / 32
100.0%
+6
54.0%
2346
0.69
1266
1 1 0 0 = = 1 = = 1 0 1 = = 0 1 = 1 1 0 1 = 0 = = 0 1 0 1 1 1 1
–   Asterisk 0.62402+17
−17		(−64)20.5 − 11.5
(+15−6=11)
64.1%
20.5 / 32
100.0%
+30
62.9%
2108
0.49
1325
1 1 0 = 1 1 = 1 = 0 = 1 = 1 = = 0 1 0 1 = 1 0 1 1 1 = = = 1 1 0
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(−64)21 − 11
(+16−6=10)
65.6%
21.0 / 32
100.0%
+39
55.8%
2382
0.63
1329
1 0 1 0 = 1 = 1 1 = 1 0 = 1 1 1 1 = 1 = = 0 1 = 1 = 0 1 1 0 1 =
–   Matilde 2008 64-bit2368+15
−15		(−98)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
−33
56.3%
2046
0.70
1152
0 = 1 = 1 1 1 0 0 = = = 0 0 1 1 0 = 1 0 1 1 = 0 1 1 0 1 1 = 1 1
1216 games in total: 422 wins, 416 losses, 378 draws (31.1%), score: 50.2%
Average opponent: −1.5 (2464.5), average distance to opponent: 36.7

Performance

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

Perf = C + 0.011 [±0.350] * 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