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

Options
Show each game results
Horizon 4.4 WB#83  (2419+18
−18
)Quote
Authors: Ron Murawski (USA), Jim Monaghan Released: 2008-02-01Link: Homepage
Issues with this engine: Occasional crashes.
This is the only Horizon version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Diablo 0.5.1 JA2482+16
−16
(+63)15.5 − 16.5
(+13−14=5)
48.4%
15.5 / 32
0.0%
+52
53.2%
2400
1.23
1276
1 0 0 1 0 1 0 1 1 = 0 0 0 = 1 1 1 0 0 1 0 0 1 = 1 0 0 1 1 = = 0
–   PostModernist 10162480+16
−16
(+61)13 − 19
(+11−17=4)
40.6%
13.0 / 32
0.0%
−12
61.0%
2548
1.13
1555
= 0 0 1 0 = 1 0 0 1 0 0 0 0 1 1 0 0 = 0 1 0 0 1 0 0 0 1 1 = 1 1
–   Djinn 0.925x2479+16
−16
(+60)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
0.0%
+6
52.2%
2575
1.36
1345
= = 1 = 0 0 0 1 0 1 1 0 0 1 = 1 0 0 1 = 1 1 0 0 = = 0 0 = 0 0 =
–   Comet B682478+14
−14
(+59)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.0%
+36
55.6%
2007
1.21
1116
0 = 1 1 1 = 1 0 0 0 0 = = = 0 1 = 0 = 0 0 0 1 1 1 1 0 1 = 0 1 0
–   Sjeng 12.132475+14
−14
(+56)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
0.0%
+21
53.3%
2060
1.12
1098
0 0 0 0 = 0 0 1 0 = 0 = = 1 0 = 1 1 = 0 0 1 1 1 1 1 0 0 1 1 0 =
–   Muse 0.899b2474+16
−16
(+55)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
0.0%
−69
52.3%
2199
1.16
1150
0 0 0 = 0 0 0 0 1 0 0 1 1 1 0 = 1 0 0 0 1 = = 0 = 0 0 = 0 1 0 =
–   Queen 4.032466+17
−17
(+47)17.5 − 14.5
(+12−9=11)
54.7%
17.5 / 32
0.0%
+80
57.6%
1937
1.19
1116
1 = 1 0 0 = 1 1 0 1 0 1 0 = = = 0 = 0 = = 1 1 1 1 = 0 1 1 = = 0
–   The Crazy Bishop 00522460+15
−15
(+41)16 − 16
(+14−14=4)
50.0%
16.0 / 32
0.0%
+43
54.2%
2637
1.38
1428
0 0 1 0 0 1 0 0 0 1 1 1 0 1 = 0 = 0 1 0 0 0 1 1 = 1 0 1 1 1 = 1
–   Patzer 3.802460+16
−16
(+41)14 − 18
(+10−14=8)
43.8%
14.0 / 32
0.0%
−2
49.9%
1940
0.97
968
= 0 0 = 0 0 0 1 0 0 = = 1 0 0 0 1 0 1 = = = 0 1 1 1 = 0 1 0 1 1
–   Der Bringer 1.92455+15
−15
(+36)16 − 16
(+13−13=6)
50.0%
16.0 / 32
0.1%
+37
54.6%
2319
1.37
1267
1 0 = = = 1 0 0 1 0 0 1 0 0 0 = 1 0 = 0 1 0 1 1 = 1 0 1 1 0 1 1
–   Gosu 0.162455+16
−16
(+36)13.5 − 18.5
(+8−13=11)
42.2%
13.5 / 32
0.1%
−16
47.5%
1924
1.40
914
0 = = 0 = 0 = 1 0 1 0 0 0 0 = 0 0 1 1 = = 0 1 = 1 0 = = = 1 1 0
–   Phalanx XXII Reborn JA2452+15
−15
(+33)16 − 16
(+13−13=6)
50.0%
16.0 / 32
0.2%
+31
49.9%
2333
1.48
1165
0 0 1 = 1 1 1 1 0 = 0 1 = 0 0 = 0 0 1 1 = 1 0 1 0 0 0 1 1 0 1 =
–   Homer 2.012452+17
−17
(+33)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
0.3%
−20
48.5%
1951
0.85
946
= = 0 = 0 = 1 0 0 = 1 0 0 1 1 1 0 0 0 1 = 1 0 0 1 = = 0 = 0 0 1
–   Betsy 6.51 Nobook2450+15
−15
(+31)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.3%
−55
51.2%
2263
1.15
1158
1 = 1 1 0 0 = 0 0 0 0 0 = 0 = 1 1 1 0 = 1 0 0 0 0 0 1 = 0 = 0 =
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16
(+29)15 − 17
(+9−11=12)
46.9%
15.0 / 32
0.6%
+11
51.6%
1646
1.29
850
= 0 1 = 1 = 1 = 0 = 0 = 0 1 1 0 1 = = 1 0 = 0 1 0 1 = 0 0 = 0 =
–   Amateur 2.822446+15
−15
(+27)18.5 − 13.5
(+17−12=3)
57.8%
18.5 / 32
0.9%
+90
52.2%
2624
1.14
1370
1 = 1 0 1 1 = 1 0 1 0 0 1 0 1 0 0 1 1 1 0 1 1 0 0 = 0 1 1 0 1 1
–   Tytan 9.32 64-bit2429+17
−17
(+10)16 − 16
(+13−13=6)
50.0%
16.0 / 32
21.1%
+10
  
= 0 1 1 0 = = 1 1 0 = 0 0 1 1 = 0 0 1 0 1 0 1 = 1 0 1 1 1 0 0 0
–   Sage 3.532424+19
−19
(+5)11.5 − 20.5
(+8−17=7)
35.9%
11.5 / 32
33.3%
−94
51.4%
2295
1.39
1179
1 = = 0 = 0 = 0 = 0 0 0 = 0 1 0 = 1 0 0 0 1 1 0 0 1 0 1 0 1 0 0
–   Sorgenkind 0.42421+18
−18
(+2)15 − 17
(+11−13=8)
46.9%
15.0 / 32
44.0%
−19
50.6%
2034
1.13
1030
0 1 0 1 1 0 1 0 0 0 = 1 = 0 0 1 0 1 0 1 = = 1 1 0 = 0 = = = 0 1
–   Thor's Hammer 2.28 32-bit2417+15
−15
(−2)18 − 14
(+14−10=8)
56.3%
18.0 / 32
56.1%
+42
51.8%
2117
1.58
1096
1 0 0 0 1 = 1 1 0 0 1 0 0 = 0 1 = 1 1 1 = 0 1 1 0 1 = 1 = = 1 =
–   Arion 1.72415+16
−16
(−4)17.5 − 14.5
(+12−9=11)
54.7%
17.5 / 32
63.7%
+25
55.5%
1902
1.46
1055
1 = = 1 = 1 = 0 = 0 1 0 1 1 1 0 = 0 1 0 = 1 1 = 0 = 0 1 0 = = 1
–   AICE 0.99.22411+16
−16
(−8)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
74.5%
−19
54.2%
2189
1.29
1186
0 0 0 = 1 1 0 1 1 = = 0 1 0 0 1 = 0 0 1 1 0 0 1 = 0 = = 1 1 1 0
–   Chezzz 1.0.32409+15
−15
(−10)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
81.0%
+45
50.5%
2049
1.39
1035
= 1 1 0 = = 0 1 = 1 1 1 0 = = 0 = 0 1 1 1 1 0 = 0 0 = 1 0 1 1 1
–   Asterisk 0.62402+17
−17
(−17)15.5 − 16.5
(+11−12=9)
48.4%
15.5 / 32
92.2%
−30
53.5%
2027
1.24
1085
0 1 1 = 1 0 0 0 = 1 1 1 = 0 1 0 = 0 0 = = 1 = 0 1 1 = 0 0 0 = 1
–   Resp 0.19 64-bit JA Nobook2402+16
−16
(−17)15 − 17
(+12−14=6)
46.9%
15.0 / 32
92.0%
−41
51.8%
2581
1.45
1336
= 1 0 0 1 1 1 = 1 0 0 = 1 = 1 0 0 1 0 1 1 0 0 0 0 0 0 = 1 0 = 1
–   Averno 0.812396+15
−15
(−23)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
97.8%
−56
51.4%
1882
1.31
967
= 1 = = 1 = 0 0 0 0 0 0 = 1 0 1 = 0 1 1 1 1 1 0 = 0 0 0 1 = = 0
–   Scidlet 3.61 64-bit JA2390+15
−15
(−29)16 − 16
(+11−11=10)
50.0%
16.0 / 32
99.4%
−27
53.6%
1985
1.46
1064
= 0 = 0 0 = 1 = = 1 1 0 0 1 1 0 1 0 1 1 1 = = 1 = 0 0 0 = 1 0 =
–   KnightX 1.922385+15
−15
(−34)18 − 14
(+15−11=6)
56.3%
18.0 / 32
99.8%
+14
51.2%
2131
1.37
1091
0 1 1 0 1 1 0 = 1 = 1 0 1 1 = 1 0 0 0 1 1 0 1 = 0 = 1 = 0 0 1 1
–   Eeyore 1.482384+15
−15
(−35)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
99.9%
+24
53.4%
2194
1.53
1171
0 1 1 1 = 1 = 0 0 = 1 0 1 1 1 1 1 1 1 0 1 1 0 0 = 0 = 1 = 0 = 0
–   Ayito 0.2.9942371+16
−16
(−48)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
100.0%
+7
47.5%
2289
1.36
1088
1 = 1 1 = 0 0 0 0 1 1 1 0 = 1 = = 0 0 = 1 = 1 = 0 1 0 1 = 1 1 1
–   Matilde 2008 64-bit2368+15
−15
(−51)15.5 − 16.5
(+11−12=9)
48.4%
15.5 / 32
100.0%
−62
54.9%
1679
1.50
922
0 1 1 0 0 0 0 1 0 = = 0 = 1 0 = 1 = 0 0 1 1 1 = 0 = 0 1 = 1 = 1
–   Natwarlal 0.142359+17
−17
(−60)19.5 − 12.5
(+17−10=5)
60.9%
19.5 / 32
100.0%
+22
49.9%
2726
1.33
1360
1 = 1 0 = 0 1 0 1 1 0 1 0 0 = 1 1 0 0 1 0 1 1 1 = 1 1 0 1 = 1 1
–   EXchess 5.01 beta 64-bit JA2355+14
−14
(−64)15 − 17
(+9−11=12)
46.9%
15.0 / 32
100.0%
−83
54.5%
1808
1.53
986
1 0 = 1 1 1 = 0 = 0 0 = 0 1 1 1 1 = 0 0 1 = = 0 = = 0 = 0 = 0 =
–   Zeus 1.292346+16
−16
(−73)17 − 15
(+12−10=10)
53.1%
17.0 / 32
100.0%
−51
56.2%
1567
1.14
880
1 = = = 1 = 1 1 1 = 0 1 1 0 1 0 = 1 0 0 0 0 = 0 0 1 = = 0 1 1 =
–   Esc 1.162345+15
−15
(−74)21 − 11
(+16−6=10)
65.6%
21.0 / 32
100.0%
+32
49.7%
1887
1.68
937
= 1 1 1 1 1 1 = 1 = 1 0 0 1 1 = 1 = = 1 = = = 0 0 0 = 1 1 0 1 1
–   ANT 2006-F2333+16
−16
(−86)22 − 10
(+19−7=6)
68.8%
22.0 / 32
100.0%
+54
51.6%
2134
1.54
1101
1 = 1 1 1 1 1 = 0 1 = 1 1 0 0 1 = 1 0 0 1 0 1 1 = 1 0 1 1 1 = 1

Performance

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

Perf = C + 0.211 [±0.333] * 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