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
Gosu 0.16 WB#73–74  (2455+16
−16		)Quote
Author: Arkadiusz Paterek (Poland) Released: 2006-10-07Links: Homepage, WBEC
This engine is stable and runs without issues.
This is the only Gosu version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   LambChop 10.992531+17
−17		(+76)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
0.0%
+40
53.7%
3285
0.83
1765
= 1 1 1 = 1 0 = 0 0 1 0 = 0 0 1 = 0 0 1 0 0 0 1 0 0 = 1 0 1 1 =
–   Dragon 4.62524+16
−16		(+69)13 − 19
(+10−16=6)
40.6%
13.0 / 32
0.0%
0
53.7%
2324
0.95
1247
= 1 0 0 = 0 1 = 1 1 0 0 1 0 1 0 0 0 0 1 = 0 1 0 1 0 = = 1 0 0 0
–   Nejmet 3.072521+16
−16		(+66)15.5 − 16.5
(+11−12=9)
48.4%
15.5 / 32
0.0%
+53
54.7%
2485
0.98
1359
0 1 0 = = = 0 = = 0 0 1 1 1 0 0 0 = 1 1 = 1 1 = 0 0 1 0 1 = 1 0
–   Snitch 1.6.2 32-bit2521+15
−15		(+66)12 − 20
(+9−17=6)
37.5%
12.0 / 32
0.0%
−27
53.0%
2549
0.98
1352
0 1 0 = 1 0 0 1 = 0 1 = = 0 0 1 1 1 1 0 0 = = 0 0 0 0 0 1 0 0 0
–   RomiChess P3k 64-bit2502+18
−18		(+47)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
−8
62.9%
2682
1.00
1686
0 1 0 1 0 0 = 1 = 0 0 0 1 = 0 0 0 1 = 1 1 = 1 = 0 0 1 0 0 1 = 0
–   Amy 0.8.7b DC2500+17
−17		(+45)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
−10
56.5%
2905
0.89
1641
1 1 0 = 1 = = 0 1 0 1 0 0 1 0 0 0 0 0 = = = 1 0 0 0 = 0 1 0 1 1
–   KnightDreamer 3.32499+16
−16		(+44)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
−13
56.2%
2345
0.98
1317
1 0 1 1 0 0 0 1 = = = = 0 1 0 = 1 1 0 0 = 0 0 0 = 0 0 0 0 1 1 1
–   Francesca MAD 0.13 Nobook2493+19
−19		(+38)14.5 − 17.5
(+13−16=3)
45.3%
14.5 / 32
0.1%
0
60.7%
2873
1.01
1743
= 1 1 1 1 0 1 1 0 0 0 1 0 0 1 0 0 0 = 1 0 0 1 0 0 1 1 0 = 1 0 0
–   Leila 0.53h2490+17
−17		(+35)11.5 − 20.5
(+8−17=7)
35.9%
11.5 / 32
0.1%
−67
52.7%
2537
1.04
1338
0 1 0 = 1 = 0 = 0 0 0 0 0 1 0 1 0 0 0 0 = = = 0 1 1 = 0 0 0 1 1
–   Diablo 0.5.1 JA2482+16
−16		(+27)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
0.7%
+34
54.6%
2281
0.77
1245
0 = 0 1 1 1 = 1 0 = 1 = 0 1 = 1 0 = 0 0 1 = 1 = 1 = 0 1 0 0 = =
–   PostModernist 10162480+16
−16		(+25)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
1.2%
+33
58.8%
2268
0.83
1333
= 1 = 1 0 1 0 0 0 0 0 1 = 1 = = = 1 0 1 0 0 1 0 = 0 1 1 1 = = 1
–   Djinn 0.925x2479+16
−16		(+24)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
1.4%
+11
51.8%
2363
0.75
1223
0 0 1 = 0 0 1 0 = 0 1 = 0 = 1 1 0 1 1 1 = 0 0 0 1 = 0 1 1 = 1 0
–   Comet B682478+14
−14		(+23)11 − 21
(+9−19=4)
34.4%
11.0 / 32
1.4%
−101
55.2%
2525
1.18
1393
0 0 0 0 1 = = 0 0 0 0 1 0 0 1 1 = 0 0 1 0 0 0 0 1 = 0 0 1 1 0 1
–   Sjeng 12.132475+14
−14		(+20)15 − 17
(+11−13=8)
46.9%
15.0 / 32
2.7%
−4
57.3%
1915
1.19
1097
1 0 0 0 1 1 = 0 = 0 1 0 = 0 = 1 0 1 1 = 0 0 1 1 = 0 0 = = 0 1 1
–   Muse 0.899b2474+16
−16		(+19)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
3.9%
−16
55.5%
2136
1.05
1186
= 1 = 1 1 1 0 0 = 0 1 = 0 0 = 0 0 = 0 1 = 1 1 0 1 1 0 0 1 0 0 0
–   Queen 4.032466+17
−17		(+11)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
16.7%
+1
55.8%
2406
0.84
1343
1 0 1 = 0 1 1 = = 0 0 1 1 0 0 = 1 1 1 0 0 = 1 1 1 0 0 0 = = 0 0
–   The Crazy Bishop 00522460+15
−15		(+5)19.5 − 12.5
(+17−10=5)
60.9%
19.5 / 32
31.5%
+88
51.0%
3042
0.86
1551
0 1 = = 1 1 1 0 1 1 0 0 1 1 1 1 1 0 0 1 1 = 1 = 0 0 1 1 0 0 = 1
–   Patzer 3.802460+16
−16		(+5)19 − 13
(+16−10=6)
59.4%
19.0 / 32
32.9%
+72
50.6%
2356
1.06
1192
0 = 0 1 0 1 1 = 0 1 1 1 1 1 1 = 1 1 0 1 0 0 0 1 0 0 1 = 1 1 = =
–   Der Bringer 1.92455+15
−15		(0)14.5 − 17.5
(+12−15=5)
45.3%
14.5 / 32
49.4%
−35
50.8%
2892
0.89
1470
1 1 1 0 1 0 1 0 0 0 = = 0 0 1 0 1 1 0 = 0 1 1 1 = 0 0 0 0 1 0 =
–   Phalanx XXII Reborn JA2452+15
−15		(−3)17 − 15
(+14−12=6)
53.1%
17.0 / 32
60.1%
+19
54.8%
2560
0.93
1403
= 1 = 0 0 0 0 = 0 0 0 1 0 1 1 1 1 = 1 0 0 0 1 1 0 1 1 1 = 1 = 1
–   Homer 2.012452+17
−17		(−3)19 − 13
(+17−11=4)
59.4%
19.0 / 32
61.2%
+70
53.3%
2945
1.03
1569
1 1 1 1 0 1 0 0 0 0 1 = = 0 0 1 1 1 1 1 = = 0 1 0 0 1 1 1 1 1 0
–   Betsy 6.51 Nobook2450+15
−15		(−5)17.5 − 14.5
(+12−9=11)
54.7%
17.5 / 32
66.7%
+25
53.7%
2613
0.99
1402
1 1 1 0 = = = 1 0 = = 1 0 0 1 1 0 0 = 1 1 1 = = = 0 = 0 = 1 0 1
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(−7)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
73.0%
−18
51.3%
2378
0.90
1221
1 0 1 1 0 1 = 1 = 0 = 0 1 1 1 0 1 0 = 1 0 = 0 0 0 = 1 = 0 0 0 1
–   Amateur 2.822446+15
−15		(−9)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
79.4%
−40
52.5%
2531
1.20
1328
1 1 0 1 0 = 1 0 0 1 0 1 1 = 0 0 0 = 0 0 1 1 0 = 1 1 0 0 0 = = =
–   Tytan 9.32 64-bit2429+17
−17		(−26)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
99.0%
+28
  
1 1 0 = 0 1 1 1 = 1 0 = = 0 0 1 = 1 = 0 1 = = 1 0 1 0 1 = 1 0 1
–   Sage 3.532424+19
−19		(−31)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
99.5%
−21
53.5%
2511
1.04
1343
0 0 0 0 = = 1 1 1 = 1 = 1 1 1 1 1 0 0 = = 0 0 0 0 1 0 1 1 0 1 =
–   Sorgenkind 0.42421+18
−18		(−34)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
99.8%
+39
53.0%
2173
1.03
1151
0 1 = 0 1 = 1 1 0 = = 1 1 = 1 = 1 0 1 0 = 0 1 0 1 1 1 = 1 0 = 1
–   Horizon 4.42419+18
−18		(−36)18.5 − 13.5
(+13−8=11)
57.8%
18.5 / 32
99.9%
+16
47.5%
1924
1.40
914
1 = = 1 = 1 = 0 1 0 1 1 1 1 = 1 1 0 0 = = 1 0 = 0 1 = = = 0 0 1
–   Thor's Hammer 2.28 32-bit2417+15
−15		(−38)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
100.0%
−3
53.0%
1788
1.14
947
0 = 1 0 1 0 1 1 = 0 0 1 1 0 = 1 1 = 1 = 1 = 1 0 1 = 0 = 0 0 1 =
–   Arion 1.72415+16
−16		(−40)15 − 17
(+11−13=8)
46.9%
15.0 / 32
100.0%
−59
58.8%
2702
0.72
1590
0 0 = 1 0 1 0 0 = 0 1 1 1 0 = = 0 = 1 0 = 1 = 0 1 = 1 0 1 0 0 1
–   AICE 0.99.22411+16
−16		(−44)16.5 − 15.5
(+15−14=3)
51.6%
16.5 / 32
100.0%
−30
52.4%
2946
0.91
1544
= 0 0 0 0 1 0 0 1 1 1 0 0 0 1 0 1 1 1 1 1 0 1 1 0 = 1 1 1 0 0 =
–   Chezzz 1.0.32409+15
−15		(−46)18 − 14
(+15−11=6)
56.3%
18.0 / 32
100.0%
0
53.7%
2603
0.75
1399
0 1 1 1 1 = = 1 0 0 1 1 1 0 0 = 0 0 = 1 1 1 1 = 0 0 = 0 1 1 0 1
–   Asterisk 0.62402+17
−17		(−53)17.5 − 14.5
(+15−12=5)
54.7%
17.5 / 32
100.0%
−16
54.0%
3076
0.85
1660
1 0 = 1 1 0 0 = = 1 0 1 1 0 0 = 1 0 = 1 1 1 0 0 1 0 1 1 0 1 0 1
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(−53)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
100.0%
+3
52.1%
2233
0.85
1163
1 0 1 0 = 0 0 1 0 0 = 1 = 1 = 1 = 1 0 0 = 1 = 1 1 1 1 1 0 1 1 0
–   Averno 0.812396+15
−15		(−59)20 − 12
(+16−8=8)
62.5%
20.0 / 32
100.0%
+29
51.5%
2578
0.83
1328
1 0 = 0 1 1 0 1 = = = 0 1 1 = 1 1 0 1 0 1 = 0 1 1 = 0 = 1 1 1 1
–   Scidlet 3.61 64-bit JA2390+15
−15		(−65)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
100.0%
−31
56.2%
2491
0.98
1400
= 0 0 0 1 0 1 = = 0 1 1 0 1 0 = 0 1 = 1 1 0 1 = 0 1 0 1 1 = 1 1
–   KnightX 1.922385+15
−15		(−70)16 − 16
(+13−13=6)
50.0%
16.0 / 32
100.0%
−70
50.5%
2343
0.99
1183
0 = 0 1 1 = 0 = = 1 1 1 0 1 0 0 1 1 = 1 0 0 1 1 = 0 0 0 1 0 0 1
–   Eeyore 1.482384+15
−15		(−71)20 − 12
(+16−8=8)
62.5%
20.0 / 32
100.0%
+18
52.4%
2527
0.88
1323
1 0 1 1 = 1 = 1 1 1 1 1 1 1 0 1 0 1 = 0 1 0 1 = 0 = 1 = 0 = 0 =
–   Ayito 0.2.9942371+16
−16		(−84)20 − 12
(+18−10=4)
62.5%
20.0 / 32
100.0%
+15
55.0%
2564
0.75
1409
1 1 1 1 = 1 1 0 1 1 0 0 0 1 0 1 0 0 1 0 1 1 0 1 1 = 1 = 0 1 1 =
–   Matilde 2008 64-bit2368+15
−15		(−87)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
−30
58.4%
2046
0.89
1195
= 0 1 0 = 1 = 1 1 0 1 1 = 1 = 1 0 = 0 1 = 1 = 1 0 0 = = = 1 = 1
–   Natwarlal 0.142359+17
−17		(−96)20.5 − 11.5
(+15−6=11)
64.1%
20.5 / 32
100.0%
−4
51.9%
2410
0.92
1251
0 1 0 1 1 = 1 1 0 = = 0 1 = 1 = 0 1 1 = = = 1 = = 1 1 1 1 1 = 0
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(−100)20 − 12
(+15−7=10)
62.5%
20.0 / 32
100.0%
−16
47.0%
2595
1.06
1220
1 = 1 1 1 1 = 0 1 1 1 1 = 0 = 0 = 1 0 = 1 1 = = 0 1 = = 0 0 1 1
–   Zeus 1.292346+16
−16		(−109)21.5 − 10.5
(+18−7=7)
67.2%
21.5 / 32
100.0%
+16
56.3%
2317
0.66
1304
0 1 = 1 = 1 1 1 1 1 1 = 1 = 0 1 1 1 = 0 = 1 0 1 1 0 1 1 1 0 0 =
–   Esc 1.162345+15
−15		(−110)22 − 10
(+20−8=4)
68.8%
22.0 / 32
100.0%
+38
51.3%
3042
1.06
1560
= 1 0 1 0 1 1 0 1 = 1 = 1 1 1 1 1 1 1 1 0 = 0 1 0 0 1 1 1 0 1 1
–   ANT 2006-F2333+16
−16		(−122)15 − 17
(+11−13=8)
46.9%
15.0 / 32
100.0%
−144
51.9%
2170
0.84
1127
0 0 0 1 = = = 1 0 1 1 0 0 0 = 1 1 = = 0 1 0 0 0 1 = 0 = 1 0 1 1
–   Anechka 0.082320+16
−16		(−135)23.5 − 8.5
(+20−5=7)
73.4%
23.5 / 32
100.0%
+37
52.0%
2556
0.94
1330
1 1 = = 1 0 0 1 0 = 1 1 0 1 1 = = 1 1 1 1 1 = 1 0 1 1 = 1 1 1 1
–   Dorky 3.482308+16
−16		(−147)24 − 8
(+19−3=10)
75.0%
24.0 / 32
100.0%
+24
52.5%
2404
1.00
1262
1 1 0 1 1 = = = 1 1 1 1 = 1 = 1 1 1 = 0 = 1 1 1 1 = = 1 0 = 1 1
–   CyberPagno 2.1 32MB2295+16
−16		(−160)25 − 7
(+22−4=6)
78.1%
25.0 / 32
100.0%
+57
56.9%
2031
0.84
1156
1 = = 0 1 1 = = 1 1 1 1 1 1 1 1 1 1 1 0 1 = 1 1 1 1 0 1 1 = 1 0
1536 games in total: 650 wins, 541 losses, 345 draws (22.5%), score: 53.5%
Average opponent: −25.0 (2430), average distance to opponent: 51.8

Performance

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

Perf = C + 0.029 [±0.206] * 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