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 1.8.1 WB (2651+18
−18
)Quote
Author: Richard Pijl (Netherlands) Released: 2006-05-10Link: 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
–   Scorpio 1.912739+26
−26
(+88)5 − 6
(+4−5=2)
45.5%
5.0 / 11
0.0%
+4956.2%
780
0.84
438
= 0 0 0 = 1 1 0 1 1 0
–   E.T. Chess 13.01.082733+21
−21
(+82)8.5 − 15.5
(+6−13=5)
35.4%
8.5 / 24
0.0%
−23
53.8%
2078
0.89
1119
0 = 0 1 1 0 = 0 1 = 0 0 = 1 0 1 0 0 0 0 1 = 0 0
–   Alfil 8.1.1 Optimized2723+21
−21
(+72)11 − 17
(+5−11=12)
39.3%
11.0 / 28
0.0%
+9
57.3%
1491
0.86
855
= 0 = 1 0 = 0 = 1 0 1 = = = 0 = 1 0 = = 0 = 0 0 1 0 = 0
–   Movei 00.8.438 (10-10-10)2722+21
−21
(+71)11.5 − 15.5
(+8−12=7)
42.6%
11.5 / 27
0.0%
+20
57.1%
1949
0.76
1113
0 1 1 = 0 1 = 0 0 = 0 0 0 1 0 1 = 1 = 0 1 = 0 0 = 0 1
–   Pro Deo 1.62719+22
−22
(+68)12 − 13
(+9−10=6)
48.0%
12.0 / 25
0.0%
+53
54.6%
1565
1.04
855
0 1 = = = 1 1 0 0 1 = 0 1 1 1 0 1 0 0 0 0 = 0 1 =
–   Delfi 5.22718+21
−21
(+67)15 − 14
(+10−9=10)
51.7%
15.0 / 29
0.0%
+77
58.1%
1610
0.92
935
= 1 0 1 0 1 1 1 = 0 = = 0 1 0 0 = 1 0 = 1 0 1 = 1 = = 0 =
–   WildCat 72718+19
−19
(+67)12 − 17
(+6−11=12)
41.4%
12.0 / 29
0.0%
+12
56.0%
1432
0.67
802
0 = 1 0 0 = = 0 0 0 1 = 0 = 0 1 = = = = = 0 1 = 1 0 = 0 1
–   Zappa 1.1 64-bit2717+19
−19
(+66)10 − 18
(+4−12=12)
35.7%
10.0 / 28
0.0%
−27
57.8%
1496
0.82
865
= 0 1 = 0 = 0 = 0 0 0 = 0 = 0 = 0 = 1 = = 1 0 0 = 0 = 1
–   Slow Chess Blitz WV2.12716+19
−19
(+65)9 − 16
(+5−12=8)
36.0%
9.0 / 25
0.0%
−25
53.6%
1872
0.67
1003
= 1 = 0 0 = 1 1 = 0 = 0 0 = = 0 0 0 = 0 0 0 1 1 0
–   Alaric 7042713+26
−26
(+62)10.5 − 12.5
(+9−11=3)
45.7%
10.5 / 23
0.0%
+33
50.0%
1944
0.93
972
0 1 1 0 0 0 = 1 1 0 0 0 0 1 0 0 = 1 1 = 1 1 0
–   Frenzee 3.0 64-bit2711+19
−19
(+60)12.5 − 15.5
(+11−14=3)
44.6%
12.5 / 28
0.0%
+16
49.2%
2602
0.93
1279
0 0 0 1 0 1 1 = 0 1 0 1 1 0 = 0 0 1 0 0 0 0 1 1 = 1 1 0
–   Colossus 2007d2707+20
−20
(+56)10.5 − 14.5
(+7−11=7)
42.0%
10.5 / 25
0.0%
+1
59.1%
1651
0.82
975
1 0 = 0 0 0 1 1 1 0 0 1 0 0 = = = = 0 = = 1 1 0 0
–   Pharaon 3.5.12704+19
−19
(+53)16 − 11
(+14−9=4)
59.3%
16.0 / 27
0.0%
+121
60.7%
2210
0.84
1341
= 0 = 1 0 1 1 1 1 1 1 0 0 = 0 1 1 = 1 1 1 0 0 0 1 0 1
–   List 5.122699+18
−18
(+48)9 − 18
(+6−15=6)
33.3%
9.0 / 27
0.0%
−70
57.2%
1871
0.74
1071
1 1 = 1 0 1 = 0 0 0 0 = 0 1 0 = 0 0 = 0 = 0 0 0 1 0 0
–   SOS 5.12697+18
−18
(+46)17.5 − 10.5
(+14−7=7)
62.5%
17.5 / 28
0.0%
+136
48.1%
2016
1.04
970
= 1 = = 1 0 1 1 1 0 = 1 1 0 0 = 0 1 0 1 0 = 1 1 1 1 1 =
–   Colossus 2007c2694+19
−19
(+43)11 − 14
(+7−10=8)
44.0%
11.0 / 25
0.0%
+2
50.1%
1891
0.93
948
= = 1 = 0 1 0 1 = 0 0 1 = = = 0 0 0 0 1 0 1 1 = 0
–   Ruffian 1.0.52687+17
−17
(+36)13 − 15
(+9−11=8)
46.4%
13.0 / 28
0.1%
+11
57.0%
1756
0.67
1001
= 0 = 1 = 1 1 1 0 0 1 0 0 1 1 0 0 = 0 = 1 = = 0 0 0 = 1
–   Petir 4.392682+18
−18
(+31)10.5 − 19.5
(+7−16=7)
35.0%
10.5 / 30
0.4%
−75
54.1%
2254
0.89
1219
1 = 0 0 0 0 = 0 0 = 1 = 0 1 0 0 0 1 0 = 0 = 0 0 1 1 = 0 0 1
–   Pseudo 0.7c2680+18
−18
(+29)9.5 − 18.5
(+7−16=5)
33.9%
9.5 / 28
0.6%
−91
57.1%
2212
0.77
1262
= 1 0 0 1 0 0 = 0 0 0 = = 0 0 0 0 1 1 1 0 1 0 1 0 = 0 0
–   Aristarch 4.502671+18
−18
(+20)8.5 − 15.5
(+7−14=3)
35.4%
8.5 / 24
4.0%
−94
53.2%
1691
0.77
900
0 0 0 1 = 1 0 1 0 0 0 1 1 1 0 0 = 0 0 0 1 0 0 =
–   Petir 4.9999992670+19
−19
(+19)9.5 − 14.5
(+8−13=3)
39.6%
9.5 / 24
5.9%
−63
53.5%
1755
0.85
939
0 0 1 1 1 0 0 0 1 1 1 0 0 0 0 0 0 = 0 = 1 0 = 1
–   Hamsters 0.62669+18
−18
(+18)12.5 − 11.5
(+9−8=7)
52.1%
12.5 / 24
6.1%
+34
57.1%
1656
0.84
946
0 = 1 1 = 1 0 1 1 0 0 = 0 0 0 0 = 1 1 = 1 1 = =
–   Booot 4.13.12668+18
−18
(+17)11 − 14
(+8−11=6)
44.0%
11.0 / 25
7.4%
−22
57.9%
1958
0.77
1133
0 0 1 0 0 1 1 = 1 0 1 0 0 0 0 1 0 1 = = = 0 = 1 =
–   BugChess2 1.5.22661+18
−18
(+10)12 − 15
(+10−13=4)
44.4%
12.0 / 27
19.8%
−37
56.1%
2145
0.86
1203
1 1 1 1 0 = 1 1 0 0 0 0 0 = 1 0 1 0 = 0 1 1 = 0 0 0 0
–   Jonny 2.832652+17
−17
(+1)15 − 13
(+11−9=8)
53.6%
15.0 / 28
48.2%
+27
50.7%
1740
1.06
882
= 1 1 1 1 1 = 0 0 1 = 1 0 1 = = 1 1 0 0 0 0 0 0 = = = 1
–   Crafty 21.5 64-bit PS2652+17
−17
(+1)12.5 − 15.5
(+11−14=3)
44.6%
12.5 / 28
45.3%
−41
54.1%
2587
0.96
1400
1 1 = 0 1 0 0 0 1 1 1 0 0 0 1 0 1 = 1 = 1 0 0 0 0 0 0 1
–   Anaconda 2.0.12644+17
−17
(−7)14.5 − 10.5
(+12−8=5)
58.0%
14.5 / 25
72.3%
+54
58.4%
1836
0.69
1073
1 = 1 1 = 1 0 1 1 = 0 1 0 1 1 0 1 = = 0 0 0 1 0 1
–   Movei 00.8.4032643+22
−22
(−8)14.5 − 12.5
(+9−7=11)
53.7%
14.5 / 27
71.6%
+12
57.0%
1433
0.81
817
= 1 0 = = = 1 = 0 0 1 0 0 0 = = 0 1 = 1 = = 1 1 = 1 1
–   Fritz 5.322643+17
−17
(−8)13.5 − 13.5
(+12−12=3)
50.0%
13.5 / 27
75.4%
−8
58.6%
1825
1.01
1070
1 0 1 1 0 1 0 1 0 1 = 0 0 = 1 1 1 1 0 1 0 0 1 = 0 0 0
–   Ktulu 4.22634+17
−17
(−17)15.5 − 13.5
(+12−10=7)
53.4%
15.5 / 29
93.1%
+7
57.1%
1877
0.99
1072
1 = = 1 1 0 0 0 0 1 = 0 = = 0 1 = 1 1 0 1 1 1 1 = 0 1 0 0
–   Thinker 4.7a2634+17
−17
(−17)11 − 14
(+7−10=8)
44.0%
11.0 / 25
93.1%
−58
53.5%
1463
0.83
782
1 0 1 = 1 0 1 0 = 0 = 1 = = 0 = 0 = 0 1 0 0 1 0 =
–   SmarThink 0.17a2633+16
−16
(−18)12.5 − 15.5
(+8−11=9)
44.6%
12.5 / 28
95.1%
−54
52.1%
1590
0.78
828
= = 0 0 0 0 0 = 1 1 1 1 1 0 0 1 = 1 = 1 = 0 = 0 0 = 0 =
–   Ufim 8.022628+18
−18
(−23)18.5 − 7.5
(+15−4=7)
71.2%
18.5 / 26
97.5%
+124
55.4%
1883
0.74
1043
1 0 1 1 = 1 1 1 = = 0 1 1 1 = = 0 1 1 1 1 = 0 = 1 1
–   Fritz 6 Light2627+19
−19
(−24)17.5 − 9.5
(+13−5=9)
64.8%
17.5 / 27
97.7%
+74
58.7%
1952
1.10
1145
= 0 0 1 1 1 = 1 = 1 1 1 = 1 1 = 0 1 1 1 = = 1 0 = = 0
–   Trace 1.37a2622+17
−17
(−29)18.5 − 12.5
(+14−8=9)
59.7%
18.5 / 31
99.3%
+36
56.6%
1815
0.97
1027
1 = 1 0 0 1 = = 0 = 0 1 = 1 = 1 1 1 1 = 1 0 1 0 1 1 = 0 1 = 0
–   AnMon 5.602621+18
−18
(−30)15.5 − 9.5
(+11−5=9)
62.0%
15.5 / 25
99.5%
+51
47.6%
1397
0.94
665
= 0 1 = 1 0 = = = 0 1 1 0 0 = 1 1 = 1 1 = = 1 1 1
–   E.T. Chess 18.11.052620+21
−21
(−31)13.5 − 9.5
(+11−7=5)
58.7%
13.5 / 23
99.1%
+36
52.9%
1843
0.90
975
1 = 0 1 0 = 1 = 0 1 0 1 0 1 = 1 0 1 1 1 = 1 0
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17
(−37)7 − 13
(+4−10=6)
35.0%
7.0 / 20
99.9%
−137
49.7%
1572
0.80
781
0 = 0 0 1 = 0 0 0 0 = 0 0 1 1 = = = 0 1
–   Yace 0.99.872609+17
−17
(−42)16.5 − 8.5
(+14−6=5)
66.0%
16.5 / 25
100.0%
+74
58.6%
1859
0.90
1090
= 1 0 0 1 = = 0 = 1 1 0 1 1 1 0 0 1 1 1 1 1 = 1 1
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19
(−44)13 − 10
(+10−7=6)
56.5%
13.0 / 23
100.0%
0
49.7%
1574
0.70
782
0 = = 0 1 0 1 = = 0 = 0 1 = 0 1 0 1 1 1 1 1 1
–   Hamsters 0.52595+21
−21
(−56)12.5 − 15.5
(+9−12=7)
44.6%
12.5 / 28
100.0%
−91
55.9%
1762
0.84
985
0 0 = = = 1 = 0 0 0 = 1 1 1 0 1 1 1 0 0 = 0 = 1 0 1 0 0
–   Pepito 1.59 32-bit2595+19
−19
(−56)14.5 − 10.5
(+12−8=5)
58.0%
14.5 / 25
100.0%
−1
52.9%
1914
0.97
1012
1 1 = 1 1 0 1 = 1 = = 1 1 0 = 1 0 0 1 0 0 0 1 1 0
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18
(−67)18 − 10
(+14−6=8)
64.3%
18.0 / 28
100.0%
+32
50.7%
1747
1.27
885
1 = 1 1 0 1 1 1 1 = = = = 1 1 1 0 = 1 1 1 1 0 0 0 = = 0
–   Green Light Chess 3.002582+17
−17
(−69)14.5 − 13.5
(+10−9=9)
51.8%
14.5 / 28
100.0%
−54
50.7%
1553
0.99
788
= 1 1 1 0 = 1 = = 0 = 0 1 0 0 0 = = 0 0 1 1 0 1 = 1 = 1
–   Tao 5.62574+17
−17
(−77)14.5 − 10.5
(+12−8=5)
58.0%
14.5 / 25
100.0%
−16
55.5%
1922
0.91
1067
0 0 0 1 1 = 0 0 = 0 1 = 1 1 1 1 = 1 1 1 1 0 0 1 =
–   Cerebro 3.03d2572+19
−19
(−79)18 − 14
(+16−12=4)
56.3%
18.0 / 32
100.0%
−29
54.3%
2409
0.97
1308
1 = 0 = 1 0 = 0 = 0 0 1 1 1 1 1 0 0 0 0 1 0 1 1 1 1 0 1 1 1 0 1
–   Twisted Logic 20080404x2568+18
−18
(−83)10 − 15
(+7−12=6)
40.0%
10.0 / 25
100.0%
−152
54.4%
1519
0.73
827
= 0 0 0 0 = = 1 0 0 1 = 0 0 1 = 1 1 0 0 0 = 1 0 1
–   Arasan 10.0 64-bit2564+17
−17
(−87)17.5 − 10.5
(+14−7=7)
62.5%
17.5 / 28
100.0%
+2
54.0%
2129
0.94
1150
1 0 1 = 0 1 1 1 1 1 1 1 = 0 1 = 1 0 = 0 = 0 1 0 1 1 = =
–   Abrok 5.02561+17
−17
(−90)18 − 7
(+17−6=2)
72.0%
18.0 / 25
100.0%
+91
54.7%
2289
0.89
1252
= 1 0 1 1 1 1 1 1 0 1 1 0 1 1 1 0 1 0 1 1 = 1 0 1
–   Amyan 1.5972552+17
−17
(−99)16.5 − 11.5
(+13−8=7)
58.9%
16.5 / 28
100.0%
−34
54.7%
1825
0.90
999
1 1 1 = 1 0 0 = = 0 1 0 0 1 0 0 1 1 = 1 0 = = 1 1 = 1 1

Performance

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

Perf = C + 0.201 [±0.324] * 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