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
SpiderChess 070603 WB#51  (2546+17
−17		)Quote
Author: Martin Giepmans (Netherlands) Released: 2007-06-03Link: WBEC
This engine is stable and runs without issues.
This is the only SpiderChess version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Jonny 2.832652+17
−17		(+106)9.5 − 17.5
(+7−15=5)
35.2%
9.5 / 27
0.0%
−3
54.7%
2021
0.52
1105
= 1 0 0 0 0 = 0 1 0 0 1 0 1 1 0 0 = 0 = 0 1 0 0 1 = 0
–   Crafty 21.5 64-bit PS2652+17
−17		(+106)10.5 − 16.5
(+8−14=5)
38.9%
10.5 / 27
0.0%
+23
53.9%
2379
0.60
1283
1 0 0 1 0 0 = 0 = 1 = 0 0 0 1 0 1 1 = 1 0 0 0 = 0 0 1
–   Anaconda 2.0.12644+17
−17		(+98)7 − 20
(+3−16=8)
25.9%
7.0 / 27
0.0%
−69
57.0%
1881
0.61
1073
= = 0 = 0 = 0 1 = 1 0 = = 0 0 0 0 0 0 0 0 0 0 0 0 1 =
–   Fritz 5.322643+17
−17		(+97)14.5 − 8.5
(+10−4=9)
63.0%
14.5 / 23
0.0%
+182
59.5%
1482
0.47
882
1 1 = = 1 = = 1 1 = 1 0 = 1 1 1 0 = 0 1 = = 0
–   Ktulu 4.22634+17
−17		(+88)8 − 15
(+4−11=8)
34.8%
8.0 / 23
0.0%
−12
52.6%
1756
0.69
924
= = 0 = = 0 0 = 0 0 1 0 = = 0 0 0 1 0 = 0 1 1
–   Thinker 4.7a2634+17
−17		(+88)12.5 − 13.5
(+6−7=13)
48.1%
12.5 / 26
0.0%
+79
57.7%
1336
0.63
771
1 = 0 = 0 1 = = 1 1 = = = 0 1 0 = 0 = = 0 1 0 = = =
–   SmarThink 0.17a2633+16
−16		(+87)8 − 20
(+6−18=4)
28.6%
8.0 / 28
0.0%
−80
53.6%
2354
0.60
1261
0 0 0 0 0 0 1 = = 1 1 0 1 0 0 1 = 0 0 0 0 = 1 0 0 0 0 0
–   Ufim 8.022628+18
−18		(+82)8.5 − 18.5
(+6−16=5)
31.5%
8.5 / 27
0.0%
−55
53.7%
2410
0.74
1293
1 0 0 0 0 0 0 = 0 0 1 = 0 0 0 1 = = 0 = 0 1 0 1 1 0 0
–   Fritz 6 Light2627+19
−19		(+81)14.5 − 12.5
(+8−6=13)
53.7%
14.5 / 27
0.0%
+104
59.0%
1192
0.82
703
= = 1 1 1 0 = = 0 1 = = 1 = = 0 = 0 = = 1 1 1 0 = = 0
–   Trace 1.37a2622+17
−17		(+76)10.5 − 16.5
(+6−12=9)
38.9%
10.5 / 27
0.0%
+3
54.9%
1781
0.62
978
= 0 0 0 0 0 0 = 0 = = = 1 0 = 0 = 1 1 1 1 = 1 0 0 = 0
–   AnMon 5.602621+18
−18		(+75)12 − 13
(+8−9=8)
48.0%
12.0 / 25
0.0%
+63
53.5%
1672
0.55
895
1 = = 0 1 0 0 1 1 = 0 1 1 = = 0 = = 0 1 0 = 1 0 0
–   E.T. Chess 18.11.052620+21
−21		(+74)10 − 16
(+5−11=10)
38.5%
10.0 / 26
0.0%
0
53.4%
1502
0.71
802
= = 0 1 = 0 = 0 1 0 0 0 = 1 0 = 0 0 0 1 = = = 1 0 =
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17		(+68)9 − 18
(+5−14=8)
33.3%
9.0 / 27
0.0%
−48
51.6%
2186
0.64
1128
= = 0 1 0 0 = 0 = 0 0 1 = 0 0 0 1 0 0 1 = 0 0 = 0 = 1
–   Yace 0.99.872609+17
−17		(+63)11 − 13
(+6−8=10)
45.8%
11.0 / 24
0.0%
+37
60.0%
1414
0.51
848
1 1 = 1 = = 1 0 = 0 = 0 0 1 = 0 = 0 0 1 = = = 0
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19		(+61)12.5 − 13.5
(+7−8=11)
48.1%
12.5 / 26
0.0%
+48
53.2%
1533
0.75
815
0 = 0 0 1 1 0 0 1 0 0 = = = = 1 1 1 = 0 1 = = = = =
–   Hamsters 0.52595+21
−21		(+49)10 − 17
(+6−13=8)
37.0%
10.0 / 27
0.0%
−35
53.5%
2237
0.56
1196
= 1 = 0 0 = 0 1 0 = = = 1 0 0 0 1 0 0 0 1 0 0 0 1 = =
–   Pepito 1.59 32-bit2595+19
−19		(+49)11.5 − 13.5
(+8−10=7)
46.0%
11.5 / 25
0.0%
+16
55.9%
1690
0.51
945
0 0 1 1 1 0 = 1 1 0 1 0 0 = 1 1 = 0 = = 0 0 = 0 =
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18		(+38)15 − 12
(+10−7=10)
55.6%
15.0 / 27
0.1%
+75
50.4%
1872
0.56
944
= = 1 1 = 0 1 = 0 0 = 1 0 0 1 1 0 1 1 = = = = 0 1 1 =
–   Green Light Chess 3.002582+17
−17		(+36)13 − 9
(+10−6=6)
59.1%
13.0 / 22
0.1%
+103
52.3%
1829
0.63
957
= = 0 = 0 = 1 1 0 1 1 1 1 1 0 0 = 1 1 0 1 =
–   Tao 5.62574+17
−17		(+28)13 − 14
(+10−11=6)
48.1%
13.0 / 27
0.8%
+15
53.6%
2044
0.67
1096
1 0 0 0 0 0 = 1 1 1 1 1 1 0 0 = 1 1 0 1 = 0 = = 0 0 =
–   Cerebro 3.03d2572+19
−19		(+26)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
1.9%
−29
51.0%
1860
0.64
948
1 1 0 = 0 = 0 = 0 1 0 0 0 0 0 1 1 = 0 0 0 = 0 = = = = 1 0 1 1 1
–   Twisted Logic 20080404x2568+18
−18		(+22)14.5 − 12.5
(+10−8=9)
53.7%
14.5 / 27
3.3%
+44
54.2%
1625
0.61
881
1 = 1 1 = 1 = = 1 0 = 0 = 0 0 0 1 1 1 = = 0 0 0 1 1 =
–   Arasan 10.0 64-bit2564+17
−17		(+18)16 − 7
(+12−3=8)
69.6%
16.0 / 23
6.7%
+142
58.2%
1423
0.59
828
= 1 1 = = 1 1 1 = 1 0 1 0 = 1 = 1 1 = = 1 0 1
–   Abrok 5.02561+17
−17		(+15)7.5 − 12.5
(+3−8=9)
37.5%
7.5 / 20
9.5%
−66
54.2%
1277
0.54
692
= 0 0 0 0 = = = = 0 = 0 = 1 = 1 = 0 0 1
–   Amyan 1.5972552+17
−17		(+6)15.5 − 11.5
(+9−5=13)
57.4%
15.5 / 27
29.9%
+52
53.8%
1469
0.81
791
= = = 1 0 = 0 1 1 = = = = 1 0 = = 0 1 1 = 1 1 0 = 1 =
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18		(+5)13 − 17
(+6−10=14)
43.3%
13.0 / 30
35.7%
−33
59.6%
1410
0.61
840
= = = 0 0 0 = 1 0 = 0 = 1 0 1 = 1 = = = 0 = 1 = 0 = = 1 0 0
–   Quark 2.352536+16
−16		(−10)15 − 11
(+11−7=8)
57.7%
15.0 / 26
82.3%
+41
54.8%
1472
0.58
806
1 1 = 1 0 1 0 = 0 1 1 = 1 = = 0 = 1 = 0 0 1 1 1 = 0
–   Gaia 3.5 64-bit2536+17
−17		(−10)14.5 − 17.5
(+12−15=5)
45.3%
14.5 / 32
81.6%
−46
55.1%
2781
0.74
1532
1 0 0 1 1 0 1 0 0 1 = 0 0 1 = = 1 0 0 = 0 1 0 = 1 0 0 1 1 0 1 0
–   King of Kings 2.562536+18
−18		(−10)16.5 − 10.5
(+12−6=9)
61.1%
16.5 / 27
80.5%
+66
54.3%
1670
0.69
907
1 1 0 1 0 = = 1 = 0 = 1 = 0 1 1 = 1 0 1 = 1 = = 0 1 1
–   LambChop 10.992531+17
−17		(−15)14.5 − 11.5
(+8−5=13)
55.8%
14.5 / 26
91.4%
+17
53.9%
1396
0.70
752
= 1 = = 0 1 0 = = 1 1 0 = 1 0 = = 1 0 = 1 = = 1 = =
–   Dragon 4.62524+16
−16		(−22)12 − 11
(+4−3=16)
52.2%
12.0 / 23
97.6%
−12
53.1%
772
0.68
410
= = 1 = = = = = = = 1 = = = 1 = = = = 1 0 0 0
–   Nejmet 3.072521+16
−16		(−25)13 − 16
(+7−10=12)
44.8%
13.0 / 29
98.9%
−56
54.7%
1626
0.65
890
= 1 0 = 0 1 0 = 1 1 0 1 = = 0 = = 0 1 0 = 0 = = = 1 0 = 0
–   Snitch 1.6.2 32-bit2521+15
−15		(−25)18 − 12
(+14−8=8)
60.0%
18.0 / 30
99.1%
+40
56.0%
1953
0.57
1093
1 0 1 = 1 = 1 0 1 1 1 0 0 1 = = 1 1 0 1 0 1 1 = 1 = = 0 = 0
–   RomiChess P3k 64-bit2502+18
−18		(−44)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
+23
61.1%
2356
0.58
1439
1 0 1 1 0 = 1 1 = = 1 0 1 0 1 1 1 1 = = 0 0 = 1 1 1 0 = 1 0 0 =
–   Amy 0.8.7b DC2500+17
−17		(−46)18.5 − 11.5
(+13−6=11)
61.7%
18.5 / 30
100.0%
+29
57.0%
1957
0.64
1115
= 1 1 = = 1 1 1 0 = 0 = 0 0 1 1 1 = = = 1 0 1 = 1 = = 1 1 0
–   KnightDreamer 3.32499+16
−16		(−47)13.5 − 13.5
(+7−7=13)
50.0%
13.5 / 27
100.0%
−44
54.4%
1367
0.55
743
= = 0 = 1 = = = 0 0 1 = 0 1 = 1 = = 1 0 = 0 1 0 1 = =
–   Francesca MAD 0.13 Nobook2493+19
−19		(−53)9 − 9
(+4−4=10)		50.0%
9.0 / 18
100.0%
−5459.0%
831
0.62
490
0 = 1 0 1 = 1 = = = 0 = = = = 0 = 1
–   Leila 0.53h2490+17
−17		(−56)11 − 14
(+7−10=8)
44.0%
11.0 / 25
100.0%
−97
53.6%
1617
0.71
866
0 0 = 0 0 1 1 = 0 1 = 0 = = 0 0 = 0 1 0 1 1 1 = =
–   Diablo 0.5.1 JA2482+16
−16		(−64)20 − 12
(+13−5=14)
62.5%
20.0 / 32
100.0%
+12
59.4%
1569
0.56
932
= 0 1 1 = = = 1 0 1 0 = 1 = 1 1 1 = = = 0 1 1 0 = = = = 1 = 1 1
–   PostModernist 10162480+16
−16		(−66)17 − 15
(+11−9=12)
53.1%
17.0 / 32
100.0%
−45
56.5%
1955
0.59
1104
= 1 1 = 1 1 1 0 = 1 1 = 0 0 = 1 1 0 = 1 0 1 = 0 = = 0 = 0 0 = =
–   Djinn 0.925x2479+16
−16		(−67)14.5 − 9.5
(+12−7=5)
60.4%
14.5 / 24
100.0%
+12
53.1%
1906
0.53
1013
0 0 0 = 0 0 = 0 1 1 1 1 1 = 1 0 1 1 = 1 1 1 = 1
–   Comet B682478+14
−14		(−68)17 − 10
(+13−6=8)
63.0%
17.0 / 27
100.0%
+18
53.7%
1821
0.71
977
= 1 0 1 1 1 0 1 1 0 1 = 1 = 1 0 = 0 1 1 = 1 = = 1 = 0
–   Sjeng 12.132475+14
−14		(−71)13 − 15
(+11−13=4)
46.4%
13.0 / 28
100.0%
−98
54.1%
2086
0.73
1129
= 1 0 0 = 1 0 1 1 0 1 0 0 1 0 0 0 1 = 1 0 0 1 1 = 0 0 1
–   Muse 0.899b2474+16
−16		(−72)12 − 15
(+8−11=8)
44.4%
12.0 / 27
100.0%
−111
54.0%
1740
0.72
940
1 1 = 1 = 0 = 0 0 0 0 1 0 0 1 = 0 1 0 = 0 = 0 = = 1 1
–   The Crazy Bishop 00522460+15
−15		(−86)15 − 13
(+10−8=10)
53.6%
15.0 / 28
100.0%
−61
49.3%
1951
0.71
961
1 1 = = = 0 1 = = 1 0 = 0 1 0 = 0 0 = 0 1 = 1 1 1 1 = 0
–   Der Bringer 1.92455+15
−15		(−91)15.5 − 10.5
(+10−5=11)
59.6%
15.5 / 26
100.0%
−30
54.8%
1263
0.51
692
= = = 1 1 = 1 1 0 1 = 0 0 1 1 = 0 = 1 = = 1 = = 1 0
–   Phalanx XXII Reborn JA2452+15
−15		(−94)15.5 − 12.5
(+11−8=9)
55.4%
15.5 / 28
100.0%
−62
54.4%
1904
0.62
1035
= 0 0 = = = 0 1 1 1 0 0 1 = 1 = 1 0 1 = 1 1 0 = 1 = 0 1
–   Betsy 6.51 Nobook2450+15
−15		(−96)17 − 12
(+11−6=12)
58.6%
17.0 / 29
100.0%
−43
58.7%
1620
0.77
951
0 1 = 1 = 0 0 = = = = 1 = = 1 = 1 1 1 1 1 = 0 1 1 0 = = 0
–   Amateur 2.822446+15
−15		(−100)17.5 − 10.5
(+12−5=11)
62.5%
17.5 / 28
100.0%
−19
54.4%
1644
0.87
895
= 0 1 1 1 = 1 1 = = 1 = = 1 0 = 0 0 1 = = = 1 0 1 1 = 1
1311 games in total: 424 wins, 437 losses, 450 draws (34.3%), score: 49.5%
Average opponent: +4.5 (2550.5), average distance to opponent: 56.6

Performance

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

Perf = C + 0.364 [±0.256] * 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