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
Francesca MAD 0.13 Nobook WB#62  (2493+19
−19		)Quote
Author: Tom King (United Kingdom) Released: 2006-05-07Link: Homepage
Issues with this engine: Francesca does not support "force", "edit" and "setboard" commands, so it can't be used with an external GUI-operated opening book. Therefore Francesca is playing without any opening book in this tournament. (readme.txt: "Francesca only supports Winboard at a very simple level. You can play games against her, but many features such as setting up a position are not currently supported.")
This is the only Francesca version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Pepito 1.59 32-bit2595+19
−19		(+102)6.5 − 13.5
(+4−11=5)
32.5%
6.5 / 20
0.0%
−16
62.1%
1327
0.69
824
0 = = 0 1 0 1 1 0 0 0 0 = 1 0 0 = 0 = 0
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18		(+91)7 − 10
(+5−8=4)		41.2%
7.0 / 17
0.0%
+26
61.6%
1253
0.64
772
0 1 1 0 = 0 1 0 = 1 0 0 = = 0 1 0
–   Green Light Chess 3.002582+17
−17		(+89)10 − 9
(+7−6=6)		52.6%
10.0 / 19
0.0%
+108
63.3%
1192
0.67
754
1 = = 1 = 1 0 1 0 = 0 0 1 = 0 1 = 1 0
–   Tao 5.62574+17
−17		(+81)4.5 − 14.5
(+3−13=3)		23.7%
4.5 / 19
0.0%
−124
64.7%
1155
0.83
747
1 0 = 0 0 0 0 0 1 0 = 0 0 1 0 0 0 = 0
–   Twisted Logic 20080404x2568+18
−18		(+75)8 − 13
(+6−11=4)
38.1%
8.0 / 21
0.0%
−11
59.4%
1591
0.73
945
0 0 = 1 0 = 1 0 0 = 1 0 1 0 0 0 0 0 1 1 =
–   Arasan 10.0 64-bit2564+17
−17		(+71)9.5 − 10.5
(+8−9=3)
47.5%
9.5 / 20
0.0%
+52
62.7%
1631
0.70
1023
1 1 0 0 0 0 1 = = 0 0 1 0 1 1 0 1 0 = 1
–   Abrok 5.02561+17
−17		(+68)9.5 − 13.5
(+8−12=3)
41.3%
9.5 / 23
0.0%
+1
65.1%
2066
0.82
1345
0 0 = = 0 0 1 0 0 = 1 0 0 0 1 1 1 0 1 1 1 0 0
–   Amyan 1.5972552+17
−17		(+59)7 − 14
(+4−11=6)
33.3%
7.0 / 21
0.0%
−55
64.6%
1239
0.66
800
0 0 = 1 = 0 0 0 = 0 0 0 = 1 0 = 0 0 1 1 =
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18		(+58)5.5 − 13.5
(+3−11=5)		28.9%
5.5 / 19
0.0%
−90
63.8%
1450
0.68
925
0 0 1 0 1 = 0 0 0 0 0 = 0 0 0 = 1 = =
–   SpiderChess 0706032546+17
−17		(+53)9 − 9
(+4−4=10)		50.0%
9.0 / 18
0.0%
+5459.0%
831
0.62
490
1 = 0 1 0 = 0 = = = 1 = = = = 1 = 0
–   Quark 2.352536+16
−16		(+43)5.5 − 12.5
(+3−10=5)		30.6%
5.5 / 18
0.0%
−97
62.9%
1423
0.78
895
= 1 0 0 = = 0 0 = 0 1 1 0 = 0 0 0 0
–   Gaia 3.5 64-bit2536+17
−17		(+43)11 − 21
(+10−20=2)
34.4%
11.0 / 32
0.0%
−87
59.6%
3281
0.78
1956
0 1 1 1 0 0 0 0 1 0 0 1 0 0 1 0 1 = 0 0 0 0 0 1 1 0 0 0 1 0 = 0
–   King of Kings 2.562536+18
−18		(+43)6 − 12
(+6−12=0)		33.3%
6.0 / 18
0.0%
−101
63.7%
1489
0.90
948
0 0 0 0 1 0 0 1 0 0 1 1 0 0 0 1 1 0
–   LambChop 10.992531+17
−17		(+38)7.5 − 16.5
(+5−14=5)
31.3%
7.5 / 24
0.1%
−101
64.2%
1909
0.60
1226
0 1 0 = 0 1 0 1 0 0 1 0 0 0 0 0 0 = = 0 = = 0 1
–   Dragon 4.62524+16
−16		(+31)8.5 − 13.5
(+7−12=3)
38.6%
8.5 / 22
0.5%
−58
64.5%
1702
0.63
1098
0 1 0 0 1 = 0 0 = 0 0 0 0 1 0 1 = 1 1 0 1 0
–   Nejmet 3.072521+16
−16		(+28)7 − 14
(+4−11=6)
33.3%
7.0 / 21
0.9%
−87
58.7%
1291
0.72
758
0 0 1 0 1 = 0 0 0 = 1 = 0 0 = 0 1 = 0 0 =
–   Snitch 1.6.2 32-bit2521+15
−15		(+28)12 − 10
(+7−5=10)
54.5%
12.0 / 22
0.9%
+57
63.3%
1029
0.78
651
0 0 = 1 = = = 1 = 1 = = = 0 1 = 0 1 1 = 1 0
–   RomiChess P3k 64-bit2502+18
−18		(+9)17 − 15
(+12−10=10)
53.1%
17.0 / 32
23.5%
+28
69.5%
1605
0.61
1116
1 = 1 = 1 = 1 0 1 1 1 = 0 1 0 0 0 0 = 0 = 1 = 0 0 0 = 1 1 = = 1
–   Amy 0.8.7b DC2500+17
−17		(+7)10.5 − 11.5
(+7−8=7)
47.7%
10.5 / 22
28.3%
−7
57.8%
1385
0.81
800
= 0 = = 1 0 0 0 1 = = 1 0 1 1 = 1 0 = 1 0 0
–   KnightDreamer 3.32499+16
−16		(+6)11 − 9
(+9−7=4)
55.0%
11.0 / 20
31.6%
+42
64.3%
1325
0.78
852
1 1 1 0 = 1 = = 1 0 1 0 1 = 0 0 1 1 0 0
–   Leila 0.53h2490+17
−17		(−3)11.5 − 11.5
(+9−9=5)
50.0%
11.5 / 23
57.7%
+1
62.1%
1780
1.03
1106
0 = 1 0 0 1 0 1 = 0 1 = = = 1 1 0 1 1 0 0 1 0
–   Diablo 0.5.1 JA2482+16
−16		(−11)15 − 17
(+11−13=8)
46.9%
15.0 / 32
81.4%
−30
64.3%
2317
0.67
1489
0 0 = 1 1 1 = = = 1 1 0 0 1 = 0 0 0 0 0 0 0 1 1 0 = = 1 1 0 1 =
–   PostModernist 10162480+16
−16		(−13)15.5 − 16.5
(+11−12=9)
48.4%
15.5 / 32
86.4%
−24
64.5%
2447
0.74
1578
0 = 0 1 0 1 1 0 = 0 1 0 1 = = 0 0 1 0 1 1 = 0 = 0 0 1 = = 1 = 1
–   Djinn 0.925x2479+16
−16		(−14)13.5 − 3.5
(+11−1=5)		79.4%
13.5 / 17
87.2%
+197
62.2%
1250
0.86
778
1 = 0 1 = 1 1 = 1 1 1 = 1 1 = 1 1
–   Comet B682478+14
−14		(−15)11 − 11
(+7−7=8)
50.0%
11.0 / 22
90.0%
−15
62.9%
1131
1.10
711
1 1 0 = = 0 1 = 0 1 0 1 = = 0 0 1 0 = = 1 =
–   Sjeng 12.132475+14
−14		(−18)11.5 − 3.5
(+11−3=1)		76.7%
11.5 / 15
93.6%
+219
61.5%
1196
0.80
735
1 1 1 1 1 0 1 0 1 1 1 1 = 1 0
–   Muse 0.899b2474+16
−16		(−19)13.5 − 9.5
(+11−7=5)
58.7%
13.5 / 23
93.9%
+42
60.0%
1524
0.98
914
0 0 = 0 1 1 1 = 1 1 0 0 1 = = 1 1 0 1 0 1 1 =
–   Queen 4.032466+17
−17		(−27)15 − 17
(+12−14=6)
46.9%
15.0 / 32
98.4%
−50
63.2%
2694
0.79
1702
0 0 = 0 1 0 = 0 1 0 0 0 0 1 1 = 0 = = = 1 0 1 0 1 1 1 1 1 0 0 1
–   The Crazy Bishop 00522460+15
−15		(−33)14 − 8
(+10−4=8)
63.6%
14.0 / 22
99.7%
+53
61.6%
1254
0.87
773
0 1 = 1 = 0 0 = = 1 = 1 1 1 1 = 1 = 0 1 = 1
–   Patzer 3.802460+16
−16		(−33)16 − 16
(+12−12=8)
50.0%
16.0 / 32
99.7%
−31
59.8%
1953
0.90
1167
= 0 0 1 1 0 0 0 = = 1 = 1 = 0 1 = 0 0 1 = = 1 1 0 0 1 0 1 1 0 1
–   Der Bringer 1.92455+15
−15		(−38)12.5 − 6.5
(+11−5=3)		65.8%
12.5 / 19
99.9%
+83
58.7%
1357
0.74
796
= = 1 1 0 1 1 1 0 = 1 1 1 1 0 1 0 1 0
–   Gosu 0.162455+16
−16		(−38)17.5 − 14.5
(+16−13=3)
54.7%
17.5 / 32
99.9%
0
60.7%
2873
1.01
1743
= 0 0 0 0 1 0 0 1 1 1 0 1 1 0 1 1 1 = 0 1 1 0 1 1 0 0 1 = 0 1 1
–   Phalanx XXII Reborn JA2452+15
−15		(−41)13.5 − 6.5
(+9−2=9)
67.5%
13.5 / 20
100.0%
+71
55.9%
1198
1.11
670
1 1 1 0 1 = = 1 0 1 = 1 = = = = = = 1 1
–   Homer 2.012452+17
−17		(−41)18.5 − 13.5
(+16−11=5)
57.8%
18.5 / 32
100.0%
+18
61.4%
2358
0.72
1448
1 1 1 1 0 0 = 0 = 1 0 1 0 1 0 = = 1 1 0 1 1 = 0 1 1 1 1 0 0 0 1
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(−45)20 − 12
(+16−8=8)
62.5%
20.0 / 32
100.0%
+43
58.5%
2550
0.73
1492
1 1 1 = = = = 0 1 0 = 1 0 = 0 1 1 1 = = 1 0 1 0 0 1 1 1 1 1 1 0
–   Amateur 2.822446+15
−15		(−47)13 − 10
(+11−8=4)
56.5%
13.0 / 23
100.0%
+4
59.9%
1737
1.08
1040
= 0 1 1 0 0 0 1 1 0 1 1 1 = 1 0 = 1 = 1 0 1 0
–   Tytan 9.32 64-bit2429+17
−17		(−64)15.5 − 16.5
(+9−10=13)
48.4%
15.5 / 32
100.0%
−74
  
1 = = = = 0 0 1 = 1 0 = 0 0 1 1 = 0 0 0 = = 0 1 = 0 1 1 = = 1 =
–   Thor's Hammer 2.28 32-bit2417+15
−15		(−76)16.5 − 4.5
(+16−4=1)
78.6%
16.5 / 21
100.0%
+181
61.4%
1887
0.84
1158
1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 0 1 = 1 1 0
–   Arion 1.72415+16
−16		(−78)13.5 − 5.5
(+11−3=5)		71.1%
13.5 / 19
100.0%
+68
65.9%
1346
0.89
887
1 = 0 1 1 1 1 0 = = 1 1 1 = 1 0 1 = 1
–   AICE 0.99.22411+16
−16		(−82)20.5 − 11.5
(+17−8=7)
64.1%
20.5 / 32
100.0%
+18
60.0%
2302
1.05
1382
1 = = 1 1 1 1 = 0 1 1 = 0 1 = = = 0 1 0 0 1 1 0 1 1 0 1 1 1 1 0
–   Chezzz 1.0.32409+15
−15		(−84)12.5 − 5.5
(+11−4=3)		69.4%
12.5 / 18
100.0%
+67
64.9%
1097
0.97
712
1 1 0 1 1 1 1 1 0 1 = 0 1 = 1 = 0 1
–   Averno 0.812396+15
−15		(−97)16 − 9
(+14−7=4)
64.0%
16.0 / 25
100.0%
+11
59.0%
1822
0.82
1075
0 = 1 1 = 1 1 1 1 0 0 1 0 1 1 1 1 0 1 0 = 0 1 = 1
–   Scidlet 3.61 64-bit JA2390+15
−15		(−103)12.5 − 10.5
(+11−9=3)
54.3%
12.5 / 23
100.0%
−69
64.7%
2012
0.84
1301
0 0 1 = = 0 0 1 0 1 0 1 1 1 1 1 1 0 0 1 = 1 0
–   KnightX 1.922385+15
−15		(−108)14 − 10
(+9−5=10)
58.3%
14.0 / 24
100.0%
−53
62.3%
1224
0.76
763
1 1 = 1 = = = = 0 = 0 1 0 = 1 = 0 = 1 1 1 0 1 =
–   Eeyore 1.482384+15
−15		(−109)11 − 11
(+7−7=8)
50.0%
11.0 / 22
100.0%
−106
65.6%
1483
1.00
973
= 1 0 0 = 1 1 = 1 0 1 0 0 0 1 1 = = 0 = = =
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(−138)15.5 − 4.5
(+14−3=3)
77.5%
15.5 / 20
100.0%
+83
59.0%
1673
0.80
987
= = = 1 0 1 1 0 1 1 1 0 1 1 1 1 1 1 1 1
1072 games in total: 425 wins, 394 losses, 253 draws (23.6%), score: 51.4%
Average opponent: −11.4 (2481.6), average distance to opponent: 50.5

Performance

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

Perf = C − 0.251 [±0.371] * 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