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
Zeus 1.29 WB#98  (2346+16
−16		)Quote
Author: Vadim Bykov (Russia) Released: 2007-02-11Links: WBEC, SDChess
This engine is stable and runs without issues.
This is the only Zeus version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   The Crazy Bishop 00522460+15
−15		(+114)7 − 25
(+4−22=6)
21.9%
7.0 / 32
0.0%
−102
54.4%
2270
0.63
1236
0 0 0 0 0 0 = 0 1 1 0 0 0 0 1 = 0 0 1 0 0 = = = = 0 0 0 0 0 0 0
–   Gosu 0.162455+16
−16		(+109)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
0.0%
−16
56.3%
2317
0.66
1304
1 0 = 0 = 0 0 0 0 0 0 = 0 = 1 0 0 0 = 1 = 0 1 0 0 1 0 0 0 1 1 =
–   Phalanx XXII Reborn JA2452+15
−15		(+106)13 − 19
(+9−15=8)
40.6%
13.0 / 32
0.0%
+40
54.1%
2334
0.86
1263
= 1 0 0 0 = 0 = 1 0 = 1 1 0 1 1 1 0 1 1 = 0 = 0 0 0 0 0 = = 0 0
–   Homer 2.012452+17
−17		(+106)15 − 17
(+12−14=6)
46.9%
15.0 / 32
0.0%
+80
54.6%
2469
0.73
1348
1 1 1 0 0 0 1 1 = 1 1 1 1 0 = 1 1 = 0 = 0 0 0 = 0 0 0 0 0 0 1 =
–   Betsy 6.51 Nobook2450+15
−15		(+104)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
−16
57.2%
2226
0.75
1274
= 1 = 0 0 1 = 1 0 = 1 0 0 = 1 0 0 0 1 = 0 0 0 0 0 0 = 0 0 = 0 =
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(+102)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
0.0%
−5
54.8%
2652
0.73
1453
1 0 0 1 1 1 1 0 = 0 1 = 0 0 0 0 1 0 0 1 0 0 = 1 0 = 0 0 0 = 0 0
–   Amateur 2.822446+15
−15		(+100)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
−17
54.7%
2019
1.02
1104
0 = 0 0 1 0 0 0 = = 0 0 = 1 1 0 1 = = 0 0 0 0 = 0 0 1 = 0 = 1 0
–   Tytan 9.32 64-bit2429+17
−17		(+83)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−5
  
1 0 = = 0 1 1 0 0 = 0 = 0 0 0 0 0 1 = 0 0 0 1 0 1 = = 0 = 1 0 1
–   Sage 3.532424+19
−19		(+78)11 − 21
(+5−15=12)
34.4%
11.0 / 32
0.0%
−23
52.9%
1971
1.06
1042
0 = 0 0 = 0 0 1 1 0 0 = 0 0 0 = = = 0 = 0 1 = 0 0 0 1 1 = = = =
–   Sorgenkind 0.42421+18
−18		(+75)11 − 21
(+8−18=6)
34.4%
11.0 / 32
0.0%
−42
54.8%
2141
0.92
1173
0 = 0 0 1 1 0 0 1 = 0 0 1 1 0 0 0 = = 1 0 1 = 0 = 0 0 0 0 0 1 0
–   Horizon 4.42419+18
−18		(+73)15 − 17
(+10−12=10)
46.9%
15.0 / 32
0.0%
+51
56.2%
1567
1.14
880
0 = = = 0 = 0 0 0 = 1 0 0 1 0 1 = 0 1 1 1 1 = 1 1 0 = = 1 0 0 =
–   Thor's Hammer 2.28 32-bit2417+15
−15		(+71)9 − 23
(+5−19=8)
28.1%
9.0 / 32
0.0%
−85
59.8%
2070
0.89
1237
= 0 0 1 = = 0 1 = = 0 0 = 0 0 1 0 0 = 0 0 0 0 0 0 1 1 0 0 0 0 =
–   Arion 1.72415+16
−16		(+69)17 − 15
(+13−11=8)
53.1%
17.0 / 32
0.0%
+92
63.8%
2320
0.80
1479
1 1 1 1 0 = = 0 0 0 0 0 1 = 1 1 = = 1 0 = 0 0 1 = 0 1 1 1 1 = 0
–   AICE 0.99.22411+16
−16		(+65)16 − 16
(+13−13=6)
50.0%
16.0 / 32
0.0%
+65
55.2%
2566
0.77
1416
0 0 = 0 0 = 1 1 0 = 1 0 0 1 1 0 1 = 1 0 = 1 0 1 1 1 = 0 0 1 1 0
–   Chezzz 1.0.32409+15
−15		(+63)12 − 20
(+12−20=0)
37.5%
12.0 / 32
0.0%
−47
51.5%
3243
0.77
1670
0 0 1 0 0 1 1 0 1 0 1 0 0 0 1 0 0 1 1 0 0 0 0 0 1 0 0 1 0 0 1 1
–   Asterisk 0.62402+17
−17		(+56)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.0%
+35
54.3%
2534
0.72
1376
1 1 = 1 = 1 0 = = 0 = 1 0 0 0 = 0 1 = 0 1 0 0 0 1 1 0 1 0 = 0 1
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(+56)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
0.0%
+22
54.0%
3235
0.83
1747
1 1 0 = = 1 0 1 0 1 0 1 1 = 1 0 0 0 1 = = 1 = 0 0 0 0 0 0 1 0 =
–   Averno 0.812396+15
−15		(+50)17 − 15
(+14−12=6)
53.1%
17.0 / 32
0.0%
+72
53.0%
2341
0.88
1241
1 1 = 1 0 1 1 0 = 0 0 1 1 1 = = 1 1 0 1 1 0 0 0 1 1 = = 0 0 0 0
–   Scidlet 3.61 64-bit JA2390+15
−15		(+44)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
0.0%
+54
58.1%
1973
0.87
1147
0 0 0 = 1 = 0 0 1 1 1 1 = 1 1 = 0 1 = 1 0 = 0 = = 0 = = = 1 0 1
–   KnightX 1.922385+15
−15		(+39)14 − 18
(+10−14=8)
43.8%
14.0 / 32
0.0%
−6
56.8%
2345
0.63
1333
1 0 0 0 0 = 0 1 = 0 1 0 1 = 0 1 0 = 0 = 1 1 0 0 0 1 1 0 1 = = =
–   Eeyore 1.482384+15
−15		(+38)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
0.0%
−15
59.2%
1899
0.74
1125
0 0 = 0 0 = 0 0 1 1 0 = = = 0 1 0 0 1 1 = 1 1 1 1 0 0 = = 0 0 =
–   Ayito 0.2.9942371+16
−16		(+25)13 − 19
(+9−15=8)
40.6%
13.0 / 32
1.1%
−42
54.0%
2257
0.74
1218
0 0 = 1 0 0 0 0 0 1 1 0 0 0 0 = = 1 1 1 0 1 = = = = 0 0 1 1 = 0
–   Matilde 2008 64-bit2368+15
−15		(+22)19 − 13
(+18−12=2)
59.4%
19.0 / 32
1.8%
+100
59.8%
2785
0.83
1665
0 1 1 1 1 0 1 0 1 1 1 = 0 = 1 0 0 1 1 0 1 0 0 1 1 0 1 0 1 0 1 1
–   Natwarlal 0.142359+17
−17		(+13)18 − 14
(+14−10=8)
56.3%
18.0 / 32
13.1%
+55
53.1%
3058
1.08
1624
1 0 1 = 1 0 1 0 1 1 = 0 1 0 1 = 1 = 0 1 0 1 1 = = = 0 0 1 0 1 =
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(+9)14 − 18
(+10−14=8)
43.8%
14.0 / 32
19.6%
−35
54.2%
2220
0.82
1204
0 1 1 0 0 0 1 1 1 0 0 0 = 0 1 = 0 0 = 1 = = 0 0 = = 0 = 1 1 0 1
–   Esc 1.162345+15
−15		(−1)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
55.4%
−32
54.6%
1962
0.77
1071
1 0 0 1 = = 0 1 = 0 0 1 0 1 1 0 0 = 0 = 0 1 = 1 0 1 = 1 0 0 = =
–   Popochin 3.22341+19
−19		(−5)15.5 − 16.5
(+10−11=11)
48.4%
15.5 / 32
65.9%
−14
57.2%
1891
0.70
1082
= 1 = 1 = = 0 0 1 1 0 0 = 1 1 0 1 = 0 0 = = 0 0 0 1 0 = 1 1 = =
–   ANT 2006-F2333+16
−16		(−13)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
87.3%
+18
51.5%
2389
0.64
1230
1 0 = 0 1 0 = = 1 1 = 0 = = 0 0 1 1 0 0 = 1 1 1 0 = 1 1 1 = 0 1
–   Anechka 0.082320+16
−16		(−26)16 − 16
(+11−11=10)
50.0%
16.0 / 32
99.0%
−28
56.1%
2083
0.89
1169
1 = = 1 0 = 0 0 0 0 = 1 1 1 0 = = = 0 = 1 = 0 = 1 1 1 0 1 1 0 0
–   Dorky 3.482308+16
−16		(−38)15 − 17
(+9−11=12)
46.9%
15.0 / 32
100.0%
−59
54.0%
1824
0.92
985
= 0 0 1 1 0 = = = = 0 = = 0 = = 0 0 1 0 1 0 0 1 = 1 1 1 0 = = 1
–   CyberPagno 2.1 32MB2295+16
−16		(−51)21 − 11
(+17−7=8)
65.6%
21.0 / 32
100.0%
+59
56.2%
2402
0.98
1350
= = 1 0 1 1 0 1 = 0 1 1 1 0 = 1 1 = 0 1 = = 1 = 1 1 0 1 1 1 1 0
–   Latista (Sinobyl) 1.52289+16
−16		(−57)23 − 9
(+20−6=6)
71.9%
23.0 / 32
100.0%
+108
56.8%
2500
0.75
1420
0 1 1 1 0 1 = 0 1 1 = 1 1 = 0 = = 1 1 1 1 1 1 1 1 1 0 1 = 0 1 1
–   Madeleine 0.22285+15
−15		(−61)19 − 13
(+14−8=10)
59.4%
19.0 / 32
100.0%
+3
56.3%
2236
1.03
1259
1 = = = 1 0 1 0 = = 0 0 1 0 1 1 1 = 1 = 0 1 1 = 1 = 1 0 1 1 = 0
–   Chispa 4.0.32273+14
−14		(−73)16 − 16
(+7−7=18)
50.0%
16.0 / 32
100.0%
−73
56.8%
1108
0.65
629
= = 0 1 = = 1 = = 1 1 = 0 0 0 = = 1 = = = 1 = = 0 0 = = = 0 1 =
–   Uralochka 1.1b2272+18
−18		(−74)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
100.0%
−42
56.7%
2632
0.67
1493
0 = 1 0 1 = = 0 = = 1 1 0 = 1 1 0 0 = 1 1 1 = 0 1 0 = 1 0 1 0 1
–   Atlas 2.202271+17
−17		(−75)18.5 − 13.5
(+16−11=5)
57.8%
18.5 / 32
100.0%
−16
  
= = 0 1 0 1 0 0 = 1 1 1 1 0 1 0 1 0 1 1 1 0 0 0 1 0 1 = 1 1 = 1
–   Genesis 2.02247+16
−16		(−99)23.5 − 8.5
(+20−5=7)
73.4%
23.5 / 32
100.0%
+76
58.3%
2569
0.74
1499
1 0 1 1 1 1 = = 1 1 1 1 0 = 1 = 1 1 1 = 1 0 0 1 0 1 1 = 1 = 1 1
–   Lime 662241+18
−18		(−105)17.5 − 14.5
(+15−12=5)
54.7%
17.5 / 32
100.0%
−69
55.6%
2690
0.75
1496
0 0 1 0 1 0 1 1 = = 1 0 1 0 1 = 1 0 1 0 1 0 = 0 1 = 1 1 0 1 1 0
–   InmiChess 3.06N2241+15
−15		(−105)20 − 12
(+16−8=8)
62.5%
20.0 / 32
100.0%
−14
56.1%
1988
0.82
1116
= 1 1 1 1 1 = 1 1 1 1 0 = = 1 = 1 = = 1 1 0 = 1 0 0 1 0 0 0 1 0
–   Nesik 0.7.0 alpha2237+16
−16		(−109)17 − 15
(+14−12=6)
53.1%
17.0 / 32
100.0%
−85
57.7%
2501
0.76
1442
1 1 1 0 1 0 0 1 0 = 1 1 = = 0 0 0 0 = 1 1 1 0 = 0 0 = 1 1 1 0 1
–   NagaSkaki 5.122232+18
−18		(−114)18 − 14
(+14−10=8)
56.3%
18.0 / 32
100.0%
−70
56.1%
2424
0.71
1359
1 0 1 1 1 1 0 1 = = 0 1 = 0 1 0 = = 0 = = 1 1 1 0 0 1 = 1 0 1 0
–   Sunsetter C10.3 64-bit JA2232+16
−16		(−114)18.5 − 13.5
(+13−8=11)
57.8%
18.5 / 32
100.0%
−62
54.9%
2381
1.04
1307
1 = 1 1 = 0 = 1 1 0 0 = 0 = 1 0 = = 1 = = = 1 1 1 1 = 0 1 0 0 1
–   Alarm 0.93.12226+16
−16		(−120)24.5 − 7.5
(+21−4=7)
76.6%
24.5 / 32
100.0%
+79
55.1%
2227
0.90
1226
1 = = 1 1 = 1 0 1 0 1 1 1 = 1 1 1 1 1 = = 1 0 1 1 1 0 1 1 1 1 =
–   Fortress 1.622216+15
−15		(−130)21.5 − 10.5
(+17−6=9)
67.2%
21.5 / 32
100.0%
−10
55.5%
1883
1.25
1045
= = 1 = = 1 0 0 1 1 1 = 1 1 1 0 1 1 1 1 1 0 1 = 1 1 = 1 = 0 0 =
–   WJChess 1.642215+16
−16		(−131)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
+2
54.8%
2186
0.65
1197
0 0 1 1 0 1 1 = = 1 = 1 0 0 0 = 1 1 = 0 1 1 1 0 1 1 1 1 1 1 1 1
–   Gk 0.90 64-bit JA2194+16
−16		(−152)22.5 − 9.5
(+17−4=11)
70.3%
22.5 / 32
100.0%
−17
55.5%
1913
1.22
1061
= = 1 1 1 = = 1 1 = 1 1 0 1 1 0 1 1 = = 1 1 = 1 = = 1 0 0 1 1 =
–   Alf 1.09 JA2193+17
−17		(−153)25.5 − 6.5
(+23−4=5)
79.7%
25.5 / 32
100.0%
+85
53.9%
2156
0.89
1163
0 1 0 1 = 1 1 1 1 = 1 1 = 1 1 1 1 1 1 = 1 1 1 1 1 0 1 0 1 1 1 =
1504 games in total: 573 wins, 559 losses, 372 draws (24.7%), score: 50.5%
Average opponent: −2.9 (2343.1), average distance to opponent: 74.0

Performance

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

Perf = C + 0.046 [±0.191] * 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