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
Eeyore 1.48 WB#93  (2384+15
−15
)Quote
Author: Anton Maydell (Russia) Released: 2004-11-30Links: SDchess, WBEC
This engine is stable and runs without issues.
This is the only Eeyore version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Snitch 1.6.2 32-bit2521+15
−15
(+137)9 − 17
(+6−14=6)
34.6%
9.0 / 26
0.0%
+24
55.5%
1747
0.85
970
= 0 = 0 0 1 = = 0 0 1 1 = 0 0 0 1 0 0 = 0 0 1 0 1 0
–   Nejmet 3.072521+16
−16
(+137)6.5 − 16.5
(+4−14=5)
28.3%
6.5 / 23
0.0%
−23
53.8%
1713
0.96
922
= 1 = 0 0 0 0 0 0 = 1 0 1 0 0 = 0 = 0 0 0 1 0
–   Amy 0.8.7b DC2500+17
−17
(+116)6.5 − 19.5
(+4−17=5)
25.0%
6.5 / 26
0.0%
−74
57.1%
1636
1.07
934
0 0 0 0 0 0 = = 1 0 = 0 0 0 0 0 0 = 0 0 1 1 0 = 0 1
–   KnightDreamer 3.32499+16
−16
(+115)10 − 16
(+6−12=8)
38.5%
10.0 / 26
0.0%
+39
57.8%
1622
0.71
937
= 1 0 = 0 0 0 1 = = 0 = 1 1 0 = 1 0 = 0 0 = 0 1 0 0
–   Francesca MAD 0.13 Nobook2493+19
−19
(+109)11 − 11
(+7−7=8)
50.0%
11.0 / 22
0.0%
+106
65.6%
1483
1.00
973
= 0 1 1 = 0 0 = 0 1 0 1 1 1 0 0 = = 1 = = =
–   Leila 0.53h2490+17
−17
(+106)10.5 − 15.5
(+9−14=3)
40.4%
10.5 / 26
0.0%
+30
54.0%
2255
0.98
1218
0 0 1 0 1 = = 0 0 0 1 1 0 0 0 1 1 0 0 0 = 1 0 1 0 1
–   PostModernist 10162480+16
−16
(+96)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
+6
62.8%
2347
0.87
1473
1 0 1 0 1 0 0 = 1 0 = 0 = 1 0 0 1 1 0 1 0 0 = = = = = 0 0 0 0 0
–   Djinn 0.925x2479+16
−16
(+95)10.5 − 17.5
(+6−13=9)
37.5%
10.5 / 28
0.0%
+6
57.9%
1654
0.67
958
0 1 0 1 0 0 = 0 = 0 = = 0 1 = 1 0 = = = 0 0 0 = 0 1 1 0
–   Comet B682478+14
−14
(+94)9 − 17
(+5−13=8)
34.6%
9.0 / 26
0.0%
−11
57.3%
1517
1.05
869
0 0 0 = 0 0 0 = 0 0 1 = 1 = 1 1 = 0 0 = = 0 1 = 0 0
–   Sjeng 12.132475+14
−14
(+91)7 − 18
(+4−15=6)
28.0%
7.0 / 25
0.0%
−69
57.1%
1600
1.15
914
0 0 1 0 0 0 = 0 0 0 = = 0 0 0 = 0 0 = 0 0 1 = 1 1
–   Muse 0.899b2474+16
−16
(+90)12 − 12
(+9−9=6)
50.0%
12.0 / 24
0.0%
+84
52.3%
1487
0.98
778
= 1 0 = 0 1 0 = = 1 1 0 1 0 1 1 1 0 0 0 1 = = 0
–   Patzer 3.802460+16
−16
(+76)12.5 − 19.5
(+7−14=11)
39.1%
12.5 / 32
0.0%
+3
51.0%
1684
1.25
859
= 0 0 = 1 0 = = 0 0 1 1 0 = 1 0 = 1 0 = = 0 = 0 0 0 1 = 0 0 = 1
–   The Crazy Bishop 00522460+15
−15
(+76)9.5 − 17.5
(+7−15=5)
35.2%
9.5 / 27
0.0%
−38
58.3%
2423
0.54
1413
0 0 0 0 0 0 1 0 0 1 0 = 0 1 1 0 0 = = 0 1 0 = 0 1 = 1
–   Gosu 0.162455+16
−16
(+71)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−18
52.4%
2527
0.88
1323
0 1 0 0 = 0 = 0 0 0 0 0 0 0 1 0 1 0 = 1 0 1 0 = 1 = 0 = 1 = 1 =
–   Der Bringer 1.92455+15
−15
(+71)10.5 − 14.5
(+6−10=9)
42.0%
10.5 / 25
0.0%
+16
56.5%
1525
0.63
861
0 = 0 = = = 1 0 1 1 = 0 0 = = 0 0 1 = = 1 0 1 0 0
–   Homer 2.012452+17
−17
(+68)11 − 21
(+8−18=6)
34.4%
11.0 / 32
0.0%
−50
55.2%
2157
1.22
1190
0 = 1 1 0 1 = 0 = 0 0 0 1 0 1 0 0 0 = 0 1 0 1 0 = 0 = 0 0 0 1 0
–   Phalanx XXII Reborn JA2452+15
−15
(+68)8.5 − 16.5
(+6−14=5)
34.0%
8.5 / 25
0.0%
−54
54.0%
2100
0.97
1133
0 0 0 = 0 0 0 1 1 0 0 0 0 0 1 = 1 = 1 0 1 0 = = 0
–   Betsy 6.51 Nobook2450+15
−15
(+66)7.5 − 21.5
(+4−18=7)
25.9%
7.5 / 29
0.0%
−108
58.4%
2126
1.01
1242
0 0 0 0 = = = 1 0 1 0 0 0 = 0 = 0 0 0 0 0 = = 1 0 0 0 0 1
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16
(+64)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
+6
56.0%
2581
1.04
1445
0 = 0 = 1 1 0 0 1 1 0 = 0 1 1 0 = 0 1 0 = 0 0 1 = 0 0 = 1 0 0 1
–   Amateur 2.822446+15
−15
(+62)8 − 16
(+6−14=4)
33.3%
8.0 / 24
0.0%
−72
53.9%
1873
1.50
1009
= 0 0 0 0 1 1 1 = 1 1 0 0 0 0 0 0 0 0 0 1 = = 0
–   Tytan 9.32 64-bit2429+17
−17
(+45)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
0.0%
−8
  
= 0 0 1 1 1 0 0 = 0 0 0 1 0 = 0 = = 1 1 1 = 0 0 = 1 0 = 0 = 1 0
–   Sage 3.532424+19
−19
(+40)18 − 14
(+14−10=8)
56.3%
18.0 / 32
0.0%
+84
53.0%
2441
1.03
1293
= 0 0 = 1 0 = 0 = 0 0 1 1 1 0 1 1 1 1 = 1 0 1 1 1 = 1 0 1 = 0 =
–   Sorgenkind 0.42421+18
−18
(+37)16 − 16
(+11−11=10)
50.0%
16.0 / 32
0.1%
+37
56.1%
2012
1.03
1128
= 1 0 0 = 1 = = 1 0 1 = = 0 1 = 0 = = 1 1 0 0 1 0 = 0 1 1 1 0 0
–   Horizon 4.42419+18
−18
(+35)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.1%
−24
53.4%
2194
1.53
1171
1 0 0 0 = 0 = 1 1 = 0 1 0 0 0 0 0 0 0 1 0 0 1 1 = 1 = 0 = 1 = 1
–   Thor's Hammer 2.28 32-bit2417+15
−15
(+33)9.5 − 16.5
(+7−14=5)
36.5%
9.5 / 26
0.1%
−67
56.8%
1902
1.14
1080
1 0 1 1 0 0 1 = = 0 0 1 = 0 = 0 1 1 0 0 0 = 0 0 0 0
–   Arion 1.72415+16
−16
(+31)9.5 − 14.5
(+6−11=7)
39.6%
9.5 / 24
0.2%
−38
62.2%
1404
0.60
873
= 0 1 = 1 1 0 = = 0 0 = 0 0 1 0 0 0 1 1 = 0 0 =
–   AICE 0.99.22411+16
−16
(+27)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.5%
+5
53.9%
2238
0.88
1206
= 0 1 0 1 1 0 1 0 0 = 1 = = 1 0 0 1 = 1 1 0 0 = 0 = 0 = 0 1 0 1
–   Chezzz 1.0.32409+15
−15
(+25)13.5 − 12.5
(+9−8=9)
51.9%
13.5 / 26
0.9%
+38
53.1%
1577
0.84
837
1 1 = = = = = 0 0 0 1 = 1 1 = 1 1 0 1 1 0 0 0 0 = =
–   Asterisk 0.62402+17
−17
(+18)16 − 16
(+11−11=10)
50.0%
16.0 / 32
5.0%
+16
53.6%
2598
0.69
1392
0 1 0 0 1 = = 1 1 = = 1 0 1 1 0 = = 0 = 0 = = 0 0 1 0 0 1 = 1 1
–   Resp 0.19 64-bit JA Nobook2402+16
−16
(+18)6.5 − 9.5
(+6−9=1)
40.6%
6.5 / 16
4.7%
−56
54.9%
1569
0.83
861
0 0 0 1 1 1 0 = 1 0 0 1 0 0 0 1
–   Averno 0.812396+15
−15
(+12)13 − 13
(+10−10=6)
50.0%
13.0 / 26
11.8%
+9
55.4%
1962
0.78
1086
0 0 = 0 0 1 1 = 1 1 1 = 1 = 0 0 = 1 0 1 0 1 1 0 = 0
–   Scidlet 3.61 64-bit JA2390+15
−15
(+6)13 − 13
(+10−10=6)
50.0%
13.0 / 26
27.6%
+6
62.5%
1867
0.69
1166
1 1 0 1 1 1 0 1 0 1 0 0 = = = 0 0 = = 1 1 0 0 1 = 0
–   KnightX 1.922385+15
−15
(+1)12 − 10
(+10−8=4)
54.5%
12.0 / 22
48.0%
+31
58.2%
1813
0.67
1055
= 0 1 0 1 1 = 0 1 1 0 1 0 = 1 1 0 0 = 1 1 0
–   Ayito 0.2.9942371+16
−16
(−13)12 − 10
(+11−9=2)
54.5%
12.0 / 22
89.0%
+20
60.7%
1550
0.65
941
0 0 0 1 1 1 0 0 0 = 1 1 0 1 1 1 1 1 0 = 0 1
–   Matilde 2008 64-bit2368+15
−15
(−16)17.5 − 14.5
(+16−13=3)
54.7%
17.5 / 32
93.5%
+23
58.8%
2518
0.67
1480
0 0 0 0 0 1 1 1 = 1 = 1 1 0 1 0 1 1 = 1 0 0 0 1 0 1 0 1 1 1 0 1
–   Natwarlal 0.142359+17
−17
(−25)16 − 16
(+10−10=12)
50.0%
16.0 / 32
99.0%
−24
56.2%
2465
0.83
1386
1 = 1 = = 1 1 = 0 0 0 1 = = 1 1 0 0 = 1 0 = 0 = = 0 = 0 0 1 1 =
–   EXchess 5.01 beta 64-bit JA2355+14
−14
(−29)11 − 14
(+6−9=10)
44.0%
11.0 / 25
99.8%
−67
58.1%
1370
0.88
796
1 = 0 1 = = 1 = = = 0 0 0 = 0 0 1 = = 1 0 = 0 0 1
–   Zeus 1.292346+16
−16
(−38)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
100.0%
+15
59.2%
1899
0.74
1125
1 1 = 1 1 = 1 1 0 0 1 = = = 1 0 1 1 0 0 = 0 0 0 0 1 1 = = 1 1 =
–   Esc 1.162345+15
−15
(−39)17 − 7
(+15−5=4)
70.8%
17.0 / 24
100.0%
+125
55.3%
2124
0.76
1175
1 = 0 1 1 1 1 1 0 0 = 1 1 = 1 1 1 = 0 1 0 1 1 1
–   Popochin 3.22341+19
−19
(−43)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
100.0%
−32
59.4%
2572
0.67
1529
1 0 = 0 1 0 1 0 1 0 1 1 0 1 1 1 0 = = 0 = 0 0 = = = 1 1 = 0 1 =
–   ANT 2006-F2333+16
−16
(−51)17.5 − 11.5
(+13−7=9)
60.3%
17.5 / 29
100.0%
+20
53.3%
1943
0.78
1036
1 = 0 1 1 1 = = = = 1 = 1 1 0 1 0 0 0 1 0 1 = 1 = 1 1 0 =
–   GNU Chess 5.07 64-bit JA2332+22
−22
(−52)15 − 8
(+10−3=10)
65.2%
15.0 / 23
100.0%
+42
51.8%
960
0.83
497
= = 1 = 0 1 1 = 0 = 1 = 1 = = 1 = 0 = 1 1 1 1
–   Anechka 0.082320+16
−16
(−64)23.5 − 8.5
(+19−4=9)
73.4%
23.5 / 32
100.0%
+100
57.3%
2105
0.55
1206
1 1 = 1 = 1 = = = 1 1 = 1 = 0 0 1 1 1 1 = 1 = 1 0 1 0 1 1 1 1 1
–   Dorky 3.482308+16
−16
(−76)16.5 − 9.5
(+14−7=5)
63.5%
16.5 / 26
100.0%
+23
57.7%
2216
1.11
1279
1 0 1 = = 1 1 0 1 0 1 = 0 = 1 1 1 0 1 1 1 = 0 0 1 1
–   CyberPagno 2.1 32MB2295+16
−16
(−89)16 − 11
(+13−8=6)
59.3%
16.0 / 27
100.0%
−18
57.0%
1954
0.60
1114
1 1 0 = = 1 1 = = 1 1 0 0 1 1 1 0 = 0 0 1 1 = 0 1 0 1
–   Latista (Sinobyl) 1.52289+16
−16
(−95)16.5 − 12.5
(+12−8=9)
56.9%
16.5 / 29
100.0%
−48
57.9%
1763
0.73
1021
0 = 1 0 1 = = = 1 = = 1 0 1 1 1 1 1 0 = = 1 1 0 0 = 1 0 0
–   Madeleine 0.22285+15
−15
(−99)18 − 8
(+15−5=6)
69.2%
18.0 / 26
100.0%
+40
51.7%
1837
0.88
949
1 0 = 1 1 = 1 0 1 = = 1 1 1 0 = 0 1 1 0 = 1 1 1 1 1
–   Chispa 4.0.32273+14
−14
(−111)16 − 11
(+13−8=6)
59.3%
16.0 / 27
100.0%
−45
57.0%
1854
0.73
1057
1 0 1 = = 1 1 = = 0 1 0 0 0 0 1 1 1 1 1 = 1 1 1 0 0 =
–   Uralochka 1.1b2272+18
−18
(−112)22 − 10
(+18−6=8)
68.8%
22.0 / 32
100.0%
+21
53.8%
2463
0.88
1326
= 1 0 0 1 1 1 1 1 1 1 1 1 0 1 1 0 = 1 = = = 1 = 1 1 = 1 1 0 = 0
–   Atlas 2.202271+17
−17
(−113)17 − 7
(+15−5=4)
70.8%
17.0 / 24
100.0%
+46
  
0 0 = = 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 0 = =
–   Genesis 2.02247+16
−16
(−137)20 − 9
(+16−5=8)
69.0%
20.0 / 29
100.0%
−3
55.6%
2158
0.70
1200
1 0 1 1 1 0 0 = 1 1 1 1 1 = = 1 1 0 = = 1 = = 1 1 0 = 1 1
–   InmiChess 3.06N2241+15
−15
(−143)16 − 10
(+15−9=2)
61.5%
16.0 / 26
100.0%
−49
54.4%
2224
0.84
1209
0 0 1 1 0 0 1 1 1 0 1 1 = 1 0 1 1 1 0 1 = 1 0 0 1 1
–   Nesik 0.7.0 alpha2237+16
−16
(−147)14.5 − 11.5
(+12−9=5)
55.8%
14.5 / 26
100.0%
−107
56.0%
2124
0.79
1189
1 1 = 1 = 1 1 0 1 1 = 0 1 1 0 = 1 0 0 0 0 1 0 0 = 1
–   Sunsetter C10.3 64-bit JA2232+16
−16
(−152)14.5 − 9.5
(+10−5=9)
60.4%
14.5 / 24
100.0%
−86
54.5%
1687
0.75
919
= = 0 = 1 0 = = 1 1 0 1 1 = 0 1 1 = 1 = 1 0 1 =
–   Alarm 0.93.12226+16
−16
(−158)22 − 10
(+21−9=2)
68.8%
22.0 / 32
100.0%
0
55.0%
2518
1.15
1384
1 1 1 1 1 1 1 0 1 1 1 0 1 1 0 = 1 1 1 1 1 0 0 1 0 0 = 1 1 0 1 0
–   Fortress 1.622216+15
−15
(−168)16 − 8
(+14−6=4)
66.7%
16.0 / 24
100.0%
−38
55.6%
1695
0.80
942
0 0 1 = 1 1 1 1 1 = 1 0 1 0 = 0 1 1 1 1 0 = 1 1
–   WJChess 1.642215+16
−16
(−169)21.5 − 3.5
(+20−2=3)
86.0%
21.5 / 25
100.0%
+145
61.1%
1944
0.70
1188
1 = 1 1 = 1 1 0 1 1 1 1 1 1 1 1 = 1 1 1 0 1 1 1 1
–   Gk 0.90 64-bit JA2194+16
−16
(−190)14.5 − 8.5
(+12−6=5)
63.0%
14.5 / 23
100.0%
−92
56.5%
1819
0.48
1027
0 1 = 1 1 1 1 1 = 1 0 1 = 1 0 1 = 0 0 0 1 1 =
–   Wing 2.0a2179+16
−16
(−205)21.5 − 4.5
(+20−3=3)
82.7%
21.5 / 26
100.0%
+72
54.5%
2007
0.85
1093
1 1 = 1 1 = 1 0 1 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 =
–   Matheus 2.32144+15
−15
(−240)20 − 7
(+17−4=6)
74.1%
20.0 / 27
100.0%
−63
59.2%
1883
0.51
1114
= 1 1 0 1 = 1 = 1 1 1 1 0 1 0 1 1 = 1 1 = 0 1 = 1 1 1
–   Bodo 0.2b2137+15
−15
(−247)23.5 − 3.5
(+22−2=3)
87.0%
23.5 / 27
100.0%
+83
52.5%
1750
0.41
919
1 1 0 1 1 1 1 1 1 1 1 1 1 = 1 1 1 = = 1 1 1 1 1 1 1 0
–   Bestia 0.902122+15
−15
(−262)23.5 − 4.5
(+23−4=1)
83.9%
23.5 / 28
100.0%
+58
54.8%
2903
0.75
1591
1 1 1 1 1 = 1 1 1 1 0 1 1 1 1 1 0 0 1 1 1 1 1 1 0 1 1 1
–   Ax 0.82119+15
−15
(−265)26 − 3
(+24−1=4)
89.7%
26.0 / 29
100.0%
+80
  
1 1 = 1 = = 1 1 1 1 1 1 1 1 1 1 1 0 = 1 1 1 1 1 1 1 1 1 1
–   DelphiMax 2.92102+16
−16
(−282)21.5 − 5.5
(+20−4=3)
79.6%
21.5 / 27
100.0%
−33
56.0%
2066
0.89
1157
= 1 1 1 1 1 1 0 1 = 0 1 1 1 = 1 1 1 1 1 0 1 1 1 1 0 1

Performance

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

Perf = C − 0.040 [±0.124] * 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