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
SnailChess 4.013 WB#159–160  (1973+19
−19		)Quote
Author: Chan Rasjid (Singapore) Released: 2002-06-30Link: RWBC
Issues with this engine: Never shows evaluations.
This is the only SnailChess version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Elephant 1.062075+16
−16		(+102)8.5 − 23.5
(+7−22=3)
26.6%
8.5 / 32
0.0%
−93
75.9%
2217
2.57
1683
0 1 0 0 0 0 0 1 = 0 1 0 1 0 0 0 0 1 0 0 = 0 0 0 0 = 0 0 0 0 1 1
–   Cilian 4.142069+16
−16		(+96)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.0%
+73
  
= 1 0 0 0 0 = 0 1 0 1 0 1 1 = = 0 0 1 0 1 0 = 1 0 0 1 = 1 = = 1
–   Etude 0.1.22063+19
−19		(+90)10.5 − 21.5
(+8−19=5)
32.8%
10.5 / 32
0.0%
−42
77.9%
2144
2.17
1671
0 = 0 1 0 0 1 0 1 0 0 = = 0 = 0 1 1 0 0 0 0 0 0 = 0 0 1 1 1 0 0
–   Gullydeckel 2.16pl12062+19
−19		(+89)12.5 − 19.5
(+8−15=9)
39.1%
12.5 / 32
0.0%
+13
77.4%
1941
2.27
1503
= 0 1 = 1 1 0 = 0 0 0 1 = 0 1 0 0 1 = = 1 0 0 0 = 0 = = 0 0 0 1
–   JanWillem 1.132062+16
−16		(+89)14 − 18
(+9−13=10)
43.8%
14.0 / 32
0.0%
+47
76.0%
1553
2.11
1181
= 0 0 1 = 0 = = 1 = 0 1 = = 1 0 = = 0 0 0 0 0 1 = 1 1 1 0 0 1 0
–   Marvin 1.3.02054+16
−16		(+81)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
0.0%
+47
78.7%
1811
1.71
1426
0 0 0 1 = 0 1 1 1 = = 0 0 1 0 = = 0 = 0 = = = 0 0 1 0 1 1 1 1 0
–   Matant 5.042053+17
−17		(+80)14 − 18
(+12−16=4)
43.8%
14.0 / 32
0.0%
+32
75.0%
1685
2.20
1263
0 = 0 = 1 1 0 0 1 0 = = 1 0 0 0 1 1 0 1 1 0 1 1 1 0 0 0 0 0 0 1
–   SSEChessII 2.05 DC2049+17
−17		(+76)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
+21
76.7%
2394
2.63
1837
1 0 = 0 = 1 0 1 = 0 0 1 1 0 0 1 = 0 1 = 0 = = 0 0 0 0 1 1 0 0 1
–   Faile 1.4.42042+15
−15		(+69)15 − 17
(+8−10=14)
46.9%
15.0 / 32
0.0%
+49
77.8%
1546
1.89
1203
= = = 1 = 1 = 1 0 0 1 = 1 0 0 0 0 = 0 = = = = = 1 1 0 = 0 0 = 1
–   Smash 1.0.32036+17
−17		(+63)14 − 18
(+11−15=6)
43.8%
14.0 / 32
0.0%
+18
77.0%
1907
2.26
1468
0 0 0 = 0 0 1 1 1 0 0 1 0 0 0 1 1 0 1 1 = 0 1 0 = 1 0 = 1 0 = =
–   Micro-Max 4.8 PIV DM2028+17
−17		(+55)12.5 − 19.5
(+7−14=11)
39.1%
12.5 / 32
0.0%
−18
  
1 = 0 1 0 = = = = 0 0 1 1 0 = 1 0 0 0 1 = 0 = 0 1 0 = 0 0 = = 0
–   Sharper 0.172022+16
−16		(+49)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
−28
75.0%
2020
2.51
1514
1 0 = = 0 1 0 1 0 0 0 = 0 0 1 0 1 = 0 0 0 = = 0 0 1 1 = 1 0 1 0
–   Mustang 4.972021+17
−17		(+48)15.5 − 16.5
(+11−12=9)
48.4%
15.5 / 32
0.0%
+36
77.2%
1471
1.55
1135
0 = 0 1 = 1 1 1 1 0 1 0 = 1 0 1 1 = 1 0 0 = = 0 = 0 = 0 1 0 0 =
–   Rival UCI 1.182021+17
−17		(+48)14.5 − 17.5
(+12−15=5)
45.3%
14.5 / 32
0.0%
+12
77.2%
2057
2.21
1589
0 = 1 = 0 0 1 0 1 0 1 1 0 1 0 0 = 0 1 0 1 0 = 1 0 = 0 1 0 0 1 1
–   BibiChess 0.52007+16
−16		(+34)15 − 17
(+12−14=6)
46.9%
15.0 / 32
0.2%
+10
  
0 0 0 0 = 0 = 1 0 1 0 1 0 1 0 0 1 = 1 1 0 1 = 1 1 0 1 1 0 = 0 =
–   IACH 0.56z1995+18
−18		(+22)8 − 24
(+4−20=8)
25.0%
8.0 / 32
3.4%
−158
87.1%
1828
2.01
1592
= 0 0 0 0 1 0 = 0 0 0 0 0 0 1 = 0 0 0 0 0 1 1 0 0 = = 0 = = 0 =
–   Heracles 0.6.161993+19
−19		(+20)18 − 14
(+15−11=6)
56.3%
18.0 / 32
5.2%
+67
76.2%
2022
2.22
1540
0 0 0 0 = 0 1 1 1 1 0 1 = 0 1 0 = 1 1 1 0 1 = 1 0 0 1 = 1 = 1 1
–   Clueless 1.41990+18
−18		(+17)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
7.8%
−15
75.8%
1971
2.21
1494
= 0 1 = = 1 1 = 0 0 0 0 1 1 1 = 0 0 1 0 1 = 0 = 0 0 0 1 1 0 1 0
–   Warrior 1.0.31987+17
−17		(+14)15 − 17
(+12−14=6)
46.9%
15.0 / 32
11.5%
−9
75.9%
2126
1.92
1614
1 0 0 1 1 0 1 0 0 1 0 = = 1 0 0 0 0 1 0 1 0 = 0 = = 0 1 1 = 1 1
–   Morphy 3.221974+17
−17		(+1)16 − 16
(+14−14=4)
50.0%
16.0 / 32
47.7%
+1
78.7%
2243
2.61
1766
0 1 = 1 0 1 0 = 0 0 0 1 1 = = 0 1 1 1 0 1 0 1 1 0 0 1 0 1 0 1 0
–   Eagle 0.7.51973+20
−20		(0)18 − 14
(+16−12=4)
56.3%
18.0 / 32
48.8%
+50
74.8%
1761
2.22
1317
0 1 1 0 1 0 1 0 = 1 0 1 1 0 0 0 1 0 = 1 = 1 1 0 1 1 1 0 1 = 0 1
–   Celes 0.77c1921+20
−20		(−52)20.5 − 11.5
(+18−9=5)
64.1%
20.5 / 32
100.0%
+56
74.4%
1778
2.20
1322
0 1 1 = 1 0 1 0 1 1 0 0 0 1 1 0 0 1 = 1 = 1 1 1 1 1 = 1 0 1 1 =
–   Simontacchi 1.811915+20
−20		(−58)22.5 − 9.5
(+21−8=3)
70.3%
22.5 / 32
100.0%
+108
76.0%
1710
2.21
1299
1 1 1 0 1 1 1 1 1 1 0 0 0 1 1 1 1 1 0 1 1 = = 1 1 1 0 = 1 1 0 0
–   Ranita 2.41907+20
−20		(−66)15 − 17
(+11−13=8)
46.9%
15.0 / 32
100.0%
−89
82.2%
1991
2.00
1636
0 1 0 = 1 1 1 1 1 1 1 0 0 = 0 1 = = 0 = = = 0 0 = 0 1 1 0 0 0 0
–   Cecir 3.51885+19
−19		(−88)19 − 13
(+14−8=10)
59.4%
19.0 / 32
100.0%
−24
76.9%
1558
2.05
1198
1 = = = 1 1 1 = 0 0 1 0 0 0 1 = = 0 = 0 1 = = 1 1 1 1 1 0 1 = 1
–   Enigma 1.1.41879+21
−21		(−94)20 − 12
(+18−10=4)
62.5%
20.0 / 32
100.0%
+5
74.4%
1774
2.21
1319
0 1 0 = 0 1 0 0 1 1 0 = 0 0 = 1 0 1 1 1 1 1 = 1 1 1 1 0 1 1 1 1
–   Soldat 0.25b1873+17
−17		(−100)22 − 10
(+19−7=6)
68.8%
22.0 / 32
100.0%
+40
74.0%
1693
1.93
1253
1 0 1 = 1 0 1 1 1 = 1 1 = = 1 1 1 1 1 0 1 0 1 1 1 1 = 0 0 1 = 0
–   Grizzly 1.40.1b1837+20
−20		(−136)22 − 10
(+21−9=2)
68.8%
22.0 / 32
100.0%
+22
75.5%
1504
2.13
1135
0 1 0 = 1 1 1 1 1 1 1 0 0 0 1 0 1 1 = 1 1 1 1 1 1 1 1 0 1 1 0 0
–   Robin 0.9831834+20
−20		(−139)21 − 11
(+20−10=2)
65.6%
21.0 / 32
100.0%
−9
75.4%
2080
1.86
1569
1 1 1 = 0 0 1 0 1 = 1 1 1 1 1 0 0 0 1 1 0 1 0 1 0 1 0 1 1 1 1 1
–   Elf 1.3.01820+18
−18		(−153)26 − 6
(+25−5=2)
81.3%
26.0 / 32
100.0%
+126
77.1%
1813
1.91
1398
1 1 1 1 1 1 1 1 1 = 0 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 0 0 1 = 1
–   Laurifer 1.01815+18
−18		(−158)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
100.0%
−84
76.3%
1232
1.71
940
= = 1 0 = 1 1 1 = 0 = 1 1 = 0 1 = 0 0 1 = 0 1 1 = 0 1 1 0 1 1 1
–   Kanguruh 1.931806+22
−22		(−167)20 − 12
(+18−10=4)
62.5%
20.0 / 32
100.0%
−69
76.0%
2000
2.31
1520
0 0 0 1 1 0 0 1 0 = = 1 1 1 0 1 1 0 1 1 0 1 0 = 1 1 1 1 1 1 = 1
–   Aldebaran 0.7.01794+19
−19		(−179)24.5 − 7.5
(+20−3=9)
76.6%
24.5 / 32
100.0%
+9
74.2%
1117
1.92
829
1 1 1 1 0 1 = 1 1 = = 1 = 1 = = 1 1 1 0 = 1 1 1 1 = 1 1 0 1 = 1
–   Adamant 1.71790+19
−19		(−183)24 − 8
(+19−3=10)
75.0%
24.0 / 32
100.0%
−9
79.4%
1308
1.77
1039
1 1 1 = = 0 0 1 1 1 0 1 1 = 1 = 1 = = 1 1 1 1 = = 1 1 = = 1 1 1
–   SEE 0.6.91781+21
−21		(−192)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
−58
74.6%
1846
2.09
1378
1 1 0 1 0 0 = 1 0 = 1 0 1 1 = 0 1 0 1 1 1 1 1 1 = = 1 1 1 1 0 1
–   Mizar 3.01767+20
−20		(−206)23.5 − 8.5
(+19−4=9)
73.4%
23.5 / 32
100.0%
−39
72.9%
1431
2.54
1043
0 = 1 = 1 1 1 = 1 = 1 = 1 1 = 1 1 0 1 1 0 1 1 1 1 0 1 1 = = 1 =
–   Belzebub 0.671744+22
−22		(−229)23.5 − 8.5
(+19−4=9)
73.4%
23.5 / 32
100.0%
−62
72.6%
1522
1.09
1105
= 1 1 0 0 1 = = 1 1 1 0 = 1 1 1 1 1 1 = = 1 = = 1 1 1 1 1 0 = 1
–   ALChess 1.5b1729+22
−22		(−244)24.5 − 7.5
(+21−4=7)
76.6%
24.5 / 32
100.0%
−44
74.8%
1207
1.75
903
1 1 1 1 0 0 0 1 1 1 1 1 = 1 = = 1 = 1 = 1 1 1 = 1 1 0 1 = 1 1 1
1216 games in total: 534 wins, 430 losses, 252 draws (20.7%), score: 54.3%
Average opponent: −34.2 (1938.8), average distance to opponent: 94.4

Performance

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

Perf = C + 0.115 [±0.168] * 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