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
Booot 4.13.1 UCI#27  (2668+18
−18		)Quote
Author: Alex Morozov (Ukraine) Released: 2007-04-01Links: WBEC, SDchess
This engine is stable and runs without issues.
This is the only Booot version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Glaurung 2.0.1 64-bit2838+23
−23		(+170)8 − 17
(+4−13=8)
32.0%
8.0 / 25
0.0%
+48
59.6%
1929
0.65
1149
0 0 0 = 0 0 0 = 1 1 0 0 1 = = = = = 0 1 0 0 0 0 =
–   Glaurung 1.2.1 64-bit2770+24
−24		(+102)11 − 15
(+6−10=10)
42.3%
11.0 / 26
0.0%
+53
53.6%
1898
0.68
1018
1 0 = 1 1 0 0 0 0 1 0 0 0 1 = = = = = = = 1 0 0 = =
–   Scorpio 2.0 32-bit2754+23
−23		(+86)12.5 − 15.5
(+6−9=13)
44.6%
12.5 / 28
0.0%
+53
59.8%
1638
0.70
980
= = = 1 = = 1 = 0 0 1 = = 0 = = 1 = = 1 0 1 0 0 = 0 0 0
–   Scorpio 1.912739+26
−26		(+71)7.5 − 14.5
(+4−11=7)
34.1%
7.5 / 22
0.0%
−35
61.2%
1552
0.60
950
0 0 = 0 0 1 0 = 0 = = = 0 1 = 1 0 0 1 0 0 =
–   E.T. Chess 13.01.082733+21
−21		(+65)11.5 − 16.5
(+8−13=7)
41.1%
11.5 / 28
0.0%
0
59.0%
1945
0.54
1147
0 1 1 1 = 0 = = 0 = 0 0 0 0 1 0 0 1 1 0 0 = 1 = 0 = 0 1
–   WildCat 82730+22
−22		(+62)12.5 − 19.5
(+6−13=13)
39.1%
12.5 / 32
0.0%
−7
61.1%
2002
0.41
1224
1 = = 0 0 1 0 0 0 0 = = = 0 = 1 0 = 0 0 1 = = 1 = = 0 0 1 = = 0
–   Alfil 8.1.1 Optimized2723+21
−21		(+55)8.5 − 18.5
(+4−14=9)
31.5%
8.5 / 27
0.0%
−69
58.5%
1842
0.49
1077
0 = = = 0 = 0 1 0 1 0 0 0 0 = 0 1 0 0 0 = 0 = = 0 = 1
–   Movei 00.8.438 (10-10-10)2722+21
−21		(+54)13 − 14
(+7−8=12)
48.1%
13.0 / 27
0.0%
+42
58.3%
1300
0.49
758
0 0 = 1 = = = 0 = 1 1 1 = = 0 = 0 = = 0 0 1 1 = 0 = 1
–   Pro Deo 1.62719+22
−22		(+51)15 − 14
(+12−11=6)
51.7%
15.0 / 29
0.0%
+63
57.6%
2061
0.63
1188
0 0 1 1 1 = 1 1 0 0 0 1 1 1 = 0 0 0 1 = 0 1 0 0 = = 1 = 1
–   Delfi 5.22718+21
−21		(+50)10 − 14
(+5−9=10)
41.7%
10.0 / 24
0.0%
−3
61.3%
1528
0.35
936
1 = = = 0 1 = 0 1 0 = 0 1 0 = = = = 0 0 1 0 = 0
–   WildCat 72718+19
−19		(+50)17 − 11
(+14−8=6)
60.7%
17.0 / 28
0.0%
+127
59.0%
2390
0.47
1409
1 1 1 = 1 1 = 1 = 1 0 = 1 0 = 1 1 1 0 0 0 = 0 1 1 0 1 0
–   Zappa 1.1 64-bit2717+19
−19		(+49)9 − 15
(+5−11=8)
37.5%
9.0 / 24
0.0%
−31
58.0%
1723
0.68
1000
0 0 0 1 1 0 0 = 1 1 = 1 0 = 0 0 0 = = = = 0 = 0
–   Slow Chess Blitz WV2.12716+19
−19		(+48)15 − 11
(+11−7=8)
57.7%
15.0 / 26
0.0%
+97
59.6%
2053
0.50
1223
0 = 1 0 1 1 1 1 = = = 0 0 = 1 0 0 1 = 1 0 = 1 = 1 1
–   Frenzee 3.0 64-bit2711+19
−19		(+43)13.5 − 14.5
(+9−10=9)
48.2%
13.5 / 28
0.0%
+25
56.8%
1702
0.57
966
0 1 0 0 0 = 0 = 1 = 0 = = 0 1 1 0 = = 1 0 = = 1 1 1 1 0
–   Colossus 2007d2707+20
−20		(+39)12 − 16
(+8−12=8)
42.9%
12.0 / 28
0.1%
−8
60.1%
2181
0.54
1311
0 1 = 0 0 0 1 1 0 0 0 0 = 1 0 = = 0 1 0 1 = 1 = = 0 1 =
–   Pharaon 3.5.12704+19
−19		(+36)12.5 − 16.5
(+7−11=11)
43.1%
12.5 / 29
0.1%
−5
59.6%
1729
0.59
1031
0 = 1 1 0 = 0 = = 1 = 1 = 0 = = = 0 1 0 1 = 0 1 0 0 0 = 0
–   List 5.122699+18
−18		(+31)14 − 13
(+9−8=10)
51.9%
14.0 / 27
0.3%
+43
58.8%
1865
0.53
1096
= 1 0 = 0 1 1 = 0 0 1 1 0 0 = = 0 = 1 1 = = 0 = = 1 1
–   SOS 5.12697+18
−18		(+29)12.5 − 17.5
(+9−14=7)
41.7%
12.5 / 30
0.6%
−29
57.0%
2080
0.64
1186
1 0 = 0 1 0 1 0 0 = 1 0 0 1 1 0 0 0 = 0 = 1 0 1 = 1 0 = 0 =
–   Colossus 2007c2694+19
−19		(+26)10 − 15
(+7−12=6)
40.0%
10.0 / 25
1.4%
−43
57.9%
2053
0.61
1188
1 0 = 0 0 0 = 0 = 0 0 1 0 0 = 1 1 = 1 = 0 1 0 0 1
–   Ruffian 1.0.52687+17
−17		(+19)13 − 14
(+7−8=12)
48.1%
13.0 / 27
3.9%
+8
57.9%
1355
0.47
784
1 0 0 1 = 1 1 = 1 1 = = 0 0 = 0 = = 0 0 = 1 0 = = = =
–   Petir 4.392682+18
−18		(+14)16.5 − 10.5
(+11−5=11)
61.1%
16.5 / 27
11.5%
+88
61.5%
1636
0.70
1006
0 = 1 = = = 0 1 = 0 = 0 0 1 1 = 1 = = 1 1 1 1 1 = 1 =
–   Pseudo 0.7c2680+18
−18		(+12)11 − 13
(+7−9=8)
45.8%
11.0 / 24
14.1%
−16
57.4%
2132
0.47
1223
1 1 = = 1 0 1 0 0 0 0 0 0 1 = = 1 = = = 0 0 = 1
–   Aristarch 4.502671+18
−18		(+3)14 − 11
(+11−8=6)
56.0%
14.0 / 25
38.5%
+43
54.4%
1545
0.65
840
= = 0 1 1 0 1 1 1 1 = 0 1 1 0 = 0 = 1 = 0 0 0 1 1
–   Petir 4.9999992670+19
−19		(+2)13 − 15
(+8−10=10)
46.4%
13.0 / 28
43.8%
−22
61.5%
1939
0.52
1192
0 1 1 0 1 0 = 0 0 = 1 1 = = 0 = 1 = = 0 = 1 = 0 1 0 0 =
–   Hamsters 0.62669+18
−18		(+1)15.5 − 12.5
(+10−7=11)
55.4%
15.5 / 28
44.7%
+34
61.1%
1667
0.57
1019
= 0 = 1 1 0 0 1 = 1 0 1 0 0 = 1 = = = 0 1 1 1 = 1 = = =
–   The Baron 2.23 64-bit2669+19
−19		(+1)11 − 21
(+5−15=12)
34.4%
11.0 / 32
44.5%
−96
57.8%
1951
0.62
1127
0 = 0 = 0 0 0 1 0 = 0 0 1 = 0 = 1 = = = 1 = 0 0 = 1 0 = 0 = 0 0
–   BugChess2 1.5.22661+18
−18		(−7)13 − 14
(+7−8=12)
48.1%
13.0 / 27
72.2%
−15
56.0%
1738
0.59
974
0 = = = 0 1 0 = = 1 0 0 = = = = = 1 0 1 = 0 = 1 1 0 1
–   Jonny 2.832652+17
−17		(−16)11.5 − 15.5
(+9−13=5)
42.6%
11.5 / 27
92.3%
−72
58.2%
2104
0.59
1224
= 0 1 0 0 = 0 1 0 1 = 1 1 1 1 0 0 0 1 = 1 0 0 0 = 0 0
–   Crafty 21.5 64-bit PS2652+17
−17		(−16)11 − 16
(+5−10=12)
40.7%
11.0 / 27
91.4%
−75
55.0%
1724
0.75
949
= = 1 = 0 1 0 = 1 = 0 = 0 0 1 = = 0 = 0 = 0 = = 0 1 0
–   The Baron 1.8.12651+18
−18		(−17)14 − 11
(+11−8=6)
56.0%
14.0 / 25
92.6%
+22
57.9%
1958
0.77
1133
1 1 0 1 1 0 0 = 0 1 0 1 1 1 1 0 1 0 = = = 1 = 0 =
–   Anaconda 2.0.12644+17
−17		(−24)13 − 10
(+10−7=6)
56.5%
13.0 / 23
98.0%
+16
58.5%
1861
0.45
1089
0 0 1 1 1 = 0 1 0 = = = 1 0 1 1 1 = 0 = 1 0 1
–   Movei 00.8.4032643+22
−22		(−25)17.5 − 10.5
(+11−4=13)
62.5%
17.5 / 28
96.7%
+49
55.8%
1503
0.62
838
1 1 = 1 = = = = 0 1 = 1 = 1 1 1 = 1 0 = 0 1 0 = 1 = = =
–   Fritz 5.322643+17
−17		(−25)13 − 8
(+9−4=8)
61.9%
13.0 / 21
98.5%
+50
61.6%
1303
0.77
803
1 = = 0 = 1 = 1 1 0 1 = = 0 1 = 1 0 1 = 1
–   Ktulu 4.22634+17
−17		(−34)15.5 − 12.5
(+12−9=7)
55.4%
15.5 / 28
99.8%
+4
59.5%
2199
0.59
1308
1 0 1 1 1 1 = 1 = = 1 = 0 = 0 0 = 0 1 1 1 0 0 1 1 0 0 =
–   Thinker 4.7a2634+17
−17		(−34)14 − 14
(+11−11=6)
50.0%
14.0 / 28
99.9%
−38
60.1%
2070
0.76
1245
= 0 0 1 0 0 = = 0 1 0 = 0 = 1 1 1 = 1 1 1 0 1 0 1 1 0 0
–   SmarThink 0.17a2633+16
−16		(−35)13 − 14
(+8−9=10)
48.1%
13.0 / 27
99.9%
−42
54.1%
1496
0.54
810
1 = 1 1 = = = 1 0 1 1 = 0 = 1 0 = 0 0 = 0 0 0 = 0 = 1
–   Ufim 8.022628+18
−18		(−40)13.5 − 12.5
(+8−7=11)
51.9%
13.5 / 26
100.0%
−27
58.0%
1741
0.65
1010
0 0 1 = 0 = 0 1 = 1 = = 0 = 1 1 0 = 1 = = = 1 1 = 0
–   Fritz 6 Light2627+19
−19		(−41)12.5 − 11.5
(+8−7=9)
52.1%
12.5 / 24
100.0%
−29
59.6%
1575
0.66
939
0 1 = 0 0 1 1 1 = = 1 0 = 1 0 1 = 0 0 = = 1 = =
–   Trace 1.37a2622+17
−17		(−46)12.5 − 11.5
(+7−6=11)
52.1%
12.5 / 24
100.0%
−32
51.6%
1411
0.71
728
1 = 1 1 = 0 1 0 = 0 1 = 0 1 = = = 0 = 1 = 0 = =
–   AnMon 5.602621+18
−18		(−47)13.5 − 15.5
(+8−10=11)
46.6%
13.5 / 29
100.0%
−68
51.9%
2414
0.62
1253
1 = 0 = = = 1 1 = = = = 0 1 0 = 0 0 1 = 1 1 1 0 0 0 0 0 =
–   E.T. Chess 18.11.052620+21
−21		(−48)15.5 − 12.5
(+11−8=9)
55.4%
15.5 / 28
100.0%
−11
58.2%
1957
0.50
1139
= = 0 1 1 1 = 1 0 1 1 0 = 0 0 = = = 1 = 1 0 1 = 1 0 1 0
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17		(−54)13 − 14
(+9−10=8)
48.1%
13.0 / 27
100.0%
−65
57.9%
1702
0.61
985
1 1 = = 0 = 0 0 1 = 0 0 0 = 1 = 0 1 1 = = 1 0 0 1 1 0
–   Yace 0.99.872609+17
−17		(−59)15.5 − 10.5
(+13−8=5)
59.6%
15.5 / 26
100.0%
+17
57.3%
2364
0.72
1354
= 1 1 1 1 0 0 1 1 1 1 0 0 1 = = = 1 1 0 0 0 = 1 1 0
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19		(−61)14.5 − 7.5
(+11−4=7)
65.9%
14.5 / 22
100.0%
+46
55.2%
1347
0.66
743
1 1 0 = 0 1 0 1 = 0 = = 1 = 1 1 = 1 1 1 = 1
–   Hamsters 0.52595+21
−21		(−73)17 − 8
(+14−5=6)
68.0%
17.0 / 25
100.0%
+55
61.2%
1881
0.73
1152
1 1 0 1 0 1 = = 1 1 = 1 1 1 1 1 0 0 1 1 = 1 = = 0
–   Pepito 1.59 32-bit2595+19
−19		(−73)12.5 − 12.5
(+8−8=9)
50.0%
12.5 / 25
100.0%
−75
58.5%
1483
0.56
867
1 0 = = = = 1 1 = 0 0 0 = 0 1 = 0 1 = 1 1 = 1 0 0
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18		(−84)13.5 − 9.5
(+11−7=5)
58.7%
13.5 / 23
100.0%
−16
52.2%
1761
0.75
919
1 1 1 1 0 0 1 1 = = 0 1 0 1 = 0 0 0 1 = 1 1 =
–   Green Light Chess 3.002582+17
−17		(−86)16.5 − 9.5
(+11−4=11)
63.5%
16.5 / 26
100.0%
0
59.5%
1653
0.69
983
0 1 1 = 1 1 = 1 = = = = = 1 = 1 0 1 = 1 = 1 0 = 0 1
–   Tao 5.62574+17
−17		(−94)13 − 8
(+9−4=8)
61.9%
13.0 / 21
100.0%
−20
61.6%
1290
0.64
795
0 = = 0 1 1 1 1 = = 1 1 0 1 1 = 0 = = 1 =
1291 games in total: 421 wins, 437 losses, 433 draws (33.5%), score: 49.4%
Average opponent: +4.0 (2672), average distance to opponent: 44.3

Performance

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

Perf = C + 0.281 [±0.241] * 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