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
The Baron 2.23 64-bit WB#25–26  (2669+19
−19
)Quote
Author: Richard Pijl (Netherlands) Released: 2008-07-26Link: Homepage
This engine is stable and runs without issues.
This is one of the 2 The Baron versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Frenzee Feb08 64-bit2810+24
−24
(+141)8 − 24
(+5−21=6)
25.0%
8.0 / 32
0.0%
−50
56.0%
1835
1.08
1028
1 0 1 0 0 0 0 0 0 0 0 = 0 0 0 = = 1 = 0 0 1 0 1 0 = 0 0 0 = 0 0
–   Delfi 5.42801+24
−24
(+132)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
0.0%
+7
57.4%
2144
0.71
1230
= 1 1 = 0 1 0 0 0 0 0 1 0 = 0 0 0 0 1 = 0 1 0 = 1 0 = 0 0 = 0 0
–   Naum 2.0 64-bit2793+21
−21
(+124)8 − 24
(+6−22=4)
25.0%
8.0 / 32
0.0%
−77
55.7%
2632
0.74
1466
0 0 1 1 0 = 0 0 0 = 0 0 = 1 0 0 0 0 0 1 0 0 = 1 0 0 0 0 0 1 0 0
–   Bright 0.2c2786+23
−23
(+117)9 − 23
(+4−18=10)
28.1%
9.0 / 32
0.0%
−31
55.5%
1671
0.70
927
1 0 0 0 0 1 0 0 = 0 0 = 1 = 0 = 0 0 0 = = 0 = = 0 0 1 = = 0 0 0
–   Alaric 7072768+22
−22
(+99)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
+44
57.3%
2541
0.86
1456
= 0 0 0 1 0 0 1 0 1 0 1 0 1 1 0 0 1 0 1 = 0 = 0 1 1 = = 0 = = 0
–   Scorpio 2.0 32-bit2754+23
−23
(+85)11 − 21
(+5−15=12)
34.4%
11.0 / 32
0.0%
−15
57.2%
1471
0.91
841
0 = = 1 0 = 0 0 0 0 1 1 = = = 0 = 0 0 0 = 0 1 0 = = 0 = 1 = 0 0
–   E.T. Chess 13.01.082733+21
−21
(+64)11.5 − 20.5
(+6−15=11)
35.9%
11.5 / 32
0.0%
−29
54.7%
1956
0.76
1070
= = 0 = 0 0 = = 0 1 1 1 = 0 1 = 1 0 0 1 = 0 0 0 0 0 0 0 0 = = =
–   WildCat 82730+22
−22
(+61)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−25
57.8%
2250
0.59
1301
1 1 0 0 0 0 1 = 1 = = 0 0 0 1 = 0 0 0 1 1 = 0 = = 0 0 0 1 = 0 0
–   Alfil 8.1.1 Optimized2723+21
−21
(+54)10.5 − 21.5
(+9−20=3)
32.8%
10.5 / 32
0.0%
−86
58.4%
2404
0.59
1403
1 0 0 0 1 1 1 0 0 0 0 1 = 0 = 0 1 0 0 1 1 0 0 0 0 0 0 1 0 = 0 0
–   Movei 00.8.438 (10-10-10)2722+21
−21
(+53)17 − 15
(+12−10=10)
53.1%
17.0 / 32
0.0%
+72
51.9%
2089
0.76
1085
= = 1 = 0 = 0 1 1 0 1 = = 0 1 = 0 1 = 0 1 1 0 1 0 1 0 1 0 1 = =
–   Pro Deo 1.62719+22
−22
(+50)11 − 21
(+8−18=6)
34.4%
11.0 / 32
0.0%
−66
58.3%
1901
0.81
1109
1 0 = = 0 1 0 0 0 0 1 0 1 0 1 0 = = 1 0 1 0 1 0 0 0 = 0 = 0 0 0
–   Zappa 1.1 64-bit2717+19
−19
(+48)12.5 − 19.5
(+7−14=11)
39.1%
12.5 / 32
0.0%
−22
59.3%
1911
0.63
1134
0 0 1 1 0 1 1 0 = = 0 = = 1 0 0 = 0 = 1 0 = = = 0 1 = 0 0 0 = 0
–   Slow Chess Blitz WV2.12716+19
−19
(+47)10.5 − 21.5
(+5−16=11)
32.8%
10.5 / 32
0.0%
−67
58.3%
1838
0.62
1071
0 1 = 1 0 0 0 0 0 = 0 = 0 = 0 1 = 0 = 0 0 0 = 1 0 = 0 = 0 = 1 =
–   Colossus 2007d2707+20
−20
(+38)13 − 19
(+9−15=8)
40.6%
13.0 / 32
0.1%
−29
54.6%
2160
0.91
1179
0 0 = 0 0 = 0 1 0 1 = 0 = 1 0 = = = 0 1 = 0 1 0 0 0 1 0 0 1 1 1
–   Pharaon 3.5.12704+19
−19
(+35)17.5 − 14.5
(+15−12=5)
54.7%
17.5 / 32
0.2%
+72
56.6%
2376
1.02
1346
1 0 1 1 0 0 1 1 1 0 = 1 1 = 0 0 1 1 1 0 1 0 0 = 1 = 0 0 1 1 0 =
–   List 5.122699+18
−18
(+30)14.5 − 17.5
(+8−11=13)
45.3%
14.5 / 32
0.6%
+2
53.8%
1590
0.93
855
1 = = = 1 0 = = = 0 0 0 1 = 0 0 0 0 1 = 1 1 1 1 0 = = = = = 0 0
–   SOS 5.12697+18
−18
(+28)9.5 − 22.5
(+5−18=9)
29.7%
9.5 / 32
1.0%
−114
57.3%
1872
0.61
1072
1 0 0 1 0 0 0 = 0 0 0 0 0 0 1 0 0 1 = = = 0 = = 1 = 0 = 0 0 = 0
–   Ruffian 1.0.52687+17
−17
(+18)13 − 19
(+10−16=6)
40.6%
13.0 / 32
5.7%
−52
57.2%
2184
0.70
1250
1 0 0 = 1 0 1 0 = 1 1 = 0 0 0 1 0 0 0 1 0 = = = 0 0 1 1 0 0 0 1
–   Pseudo 0.7c2680+18
−18
(+11)18 − 14
(+16−12=4)
56.3%
18.0 / 32
18.1%
+58
56.9%
2814
0.80
1600
= 0 0 1 0 0 1 1 1 0 0 1 0 1 1 1 1 0 = 1 = = 1 0 1 1 0 0 0 1 1 1
–   Aristarch 4.502671+18
−18
(+2)20 − 12
(+16−8=8)
62.5%
20.0 / 32
44.3%
+89
55.9%
1618
0.85
904
1 1 1 1 0 0 1 1 = = 0 1 1 1 1 0 1 0 = 1 1 0 = = 1 1 = = 0 1 = 0
–   Petir 4.9999992670+19
−19
(+1)20.5 − 11.5
(+17−8=7)
64.1%
20.5 / 32
49.3%
+103
57.2%
2339
0.97
1338
0 = 1 1 1 1 0 0 0 0 = 1 = 0 1 = 1 1 0 = 1 1 = 1 1 1 = 1 1 1 0 1
–   Hamsters 0.62669+18
−18
(0)20.5 − 11.5
(+17−8=7)
64.1%
20.5 / 32
50.2%
+102
58.8%
2187
0.85
1287
1 1 1 = 0 0 1 0 1 0 1 0 = 1 1 = = 1 0 = 1 = 1 1 1 1 = 1 1 0 1 0
–   Booot 4.13.12668+18
−18
(−1)21 − 11
(+15−5=12)
65.6%
21.0 / 32
55.5%
+96
57.8%
1951
0.62
1127
1 = 1 = 1 1 1 0 1 = 1 1 0 = 1 = 0 = = = 0 = 1 1 = 0 1 = 1 = 1 1
–   BugChess2 1.5.22661+18
−18
(−8)16 − 16
(+12−12=8)
50.0%
16.0 / 32
76.1%
−8
58.8%
2103
0.84
1236
0 = 1 = 1 0 = = 0 0 1 0 1 0 = 0 = 0 = 0 1 0 1 1 1 1 0 1 1 = 1 0
–   Jonny 2.832652+17
−17
(−17)16 − 16
(+12−12=8)
50.0%
16.0 / 32
93.7%
−17
56.2%
1976
0.79
1110
1 = 1 1 = 1 1 = 1 = 1 0 = 0 = 0 0 0 1 0 0 0 0 1 = 1 0 = 0 1 1 0
–   Crafty 21.5 64-bit PS2652+17
−17
(−17)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
92.9%
−6
57.2%
2266
0.84
1297
1 1 0 1 0 0 1 1 0 1 = 1 1 1 = 1 0 = 0 = 0 = = 1 0 = = 1 0 = 0 0
–   Anaconda 2.0.12644+17
−17
(−25)20 − 12
(+14−6=12)
62.5%
20.0 / 32
98.4%
+54
61.5%
1737
0.67
1068
1 1 = 1 0 = 0 = 1 = = = 1 1 1 1 = 1 0 1 0 = 1 = 0 1 = 0 = 1 1 =
–   Fritz 5.322643+17
−17
(−26)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
98.8%
+47
57.0%
1787
0.99
1018
= 1 = 1 1 = 0 1 1 1 1 = 0 1 0 = 0 1 0 = 1 1 1 = = 0 0 1 1 1 0 =
–   Ktulu 4.22634+17
−17
(−35)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
99.9%
−46
58.6%
2119
0.94
1241
0 1 0 1 1 0 0 = 0 1 1 = = 0 1 1 0 1 0 1 1 = 1 0 = 0 1 = = 0 0 0
–   Thinker 4.7a2634+17
−17
(−35)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
99.9%
−24
57.0%
2185
1.01
1245
0 1 1 0 1 0 = = = 0 1 1 1 0 0 = 1 1 1 = = 0 = 0 1 0 1 = 0 1 = 0
–   SmarThink 0.17a2633+16
−16
(−36)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
99.9%
+16
53.2%
1730
0.91
921
0 0 = = = 0 1 = 1 1 = 1 1 1 1 = = = = 0 1 0 0 1 1 0 1 0 1 1 1 0
–   Ufim 8.022628+18
−18
(−41)18 − 14
(+14−10=8)
56.3%
18.0 / 32
100.0%
+2
58.6%
2116
0.85
1239
0 0 1 1 0 0 = 1 0 0 1 = 1 0 0 = = 1 = 1 1 = = 0 1 1 1 0 1 1 1 =
–   Trace 1.37a2622+17
−17
(−47)20.5 − 11.5
(+18−9=5)
64.1%
20.5 / 32
100.0%
+60
55.0%
2305
0.81
1268
1 0 1 0 0 = 0 1 1 1 = = = 1 1 = 1 1 1 0 1 1 0 1 1 0 0 1 1 1 0 1
–   AnMon 5.602621+18
−18
(−48)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
+18
54.5%
2176
0.88
1186
= 1 1 1 0 0 1 1 1 0 1 0 0 0 0 1 = 1 = 0 1 = = = 1 1 1 = 1 = 0 1
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17
(−55)17 − 15
(+11−9=12)
53.1%
17.0 / 32
100.0%
−35
48.6%
2158
0.66
1048
= 0 0 = 0 1 = = 1 = 1 = 1 0 0 1 0 1 = 0 1 1 1 0 0 = = = = = 1 1
–   Yace 0.99.872609+17
−17
(−60)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
100.0%
−28
58.2%
1998
0.84
1162
0 = 1 1 = 1 = 0 0 1 0 0 1 1 1 1 0 0 = 1 = = 1 = 1 0 = = 1 1 0 0
–   Pepito 1.59 32-bit2595+19
−19
(−74)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
−5
54.8%
2217
0.90
1216
0 = = = = 0 1 1 1 = 1 0 1 1 1 1 1 1 0 = 0 = 0 0 1 1 1 1 0 1 0 =
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18
(−85)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
−5
51.0%
2272
1.15
1159
0 0 0 0 = 1 = 1 1 = 0 1 1 = 1 1 1 = 0 1 = 1 = 1 0 0 1 1 1 1 1 0
–   Green Light Chess 3.002582+17
−17
(−87)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
−6
55.6%
2282
0.85
1268
= 1 1 1 1 0 1 = 1 1 0 0 0 = 1 1 = 1 0 = 1 0 = = 0 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 − 0.206 [±0.281] * 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