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
Tao 5.6 UCI#44  (2574+17
−17		)Quote
Author: Bas Hamstra (Netherlands) Released: 2004-03-13Link: WBEC
Issues with this engine: Occasionally it makes illegal moves. It happens after the opponent made an underpromotion.
This is the only Tao version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Petir 4.392682+18
−18		(+108)9 − 15
(+6−12=6)
37.5%
9.0 / 24
0.0%
+18
60.7%
2082
0.55
1264
0 1 0 = = = 0 0 0 0 1 1 1 1 0 1 0 0 = 0 0 0 = =
–   Petir 4.9999992670+19
−19		(+96)6 − 21
(+4−19=4)
22.2%
6.0 / 27
0.0%
−127
63.5%
2367
0.59
1503
0 0 0 = = 0 0 1 0 0 0 0 1 0 1 0 0 0 1 = = 0 0 0 0 0 0
–   Hamsters 0.62669+18
−18		(+95)3.5 − 19.5
(+2−18=3)
15.2%
3.5 / 23
0.0%
−197
55.2%
2123
0.91
1172
= 0 0 1 0 0 0 0 0 0 = 0 0 0 1 0 0 0 0 = 0 0 0
–   Booot 4.13.12668+18
−18		(+94)8 − 13
(+4−9=8)
38.1%
8.0 / 21
0.0%
+20
61.6%
1290
0.64
795
1 = = 1 0 0 0 0 = = 0 0 1 0 0 = 1 = = 0 =
–   BugChess2 1.5.22661+18
−18		(+87)8 − 17
(+6−15=4)
32.0%
8.0 / 25
0.0%
−53
54.4%
2525
0.57
1373
0 0 0 0 0 1 1 1 0 0 0 0 = = = 0 = 0 1 1 0 0 1 0 0
–   Jonny 2.832652+17
−17		(+78)12 − 16
(+8−12=8)
42.9%
12.0 / 28
0.0%
+27
56.5%
1624
0.78
917
= = 0 0 0 1 = = 0 0 0 = 1 0 0 = 0 = 0 1 1 0 1 = 0 1 1 1
–   Crafty 21.5 64-bit PS2652+17
−17		(+78)9.5 − 16.5
(+7−14=5)
36.5%
9.5 / 26
0.0%
−22
58.8%
1836
0.63
1079
0 0 0 1 0 0 0 1 1 0 1 1 0 1 0 0 = = 0 0 0 = = 0 1 =
–   The Baron 1.8.12651+18
−18		(+77)10.5 − 14.5
(+8−12=5)
42.0%
10.5 / 25
0.0%
+16
55.5%
1922
0.91
1067
1 1 1 0 0 = 1 1 = 1 0 = 0 0 0 0 = 0 0 0 0 1 1 0 =
–   Anaconda 2.0.12644+17
−17		(+70)12.5 − 14.5
(+9−11=7)
46.3%
12.5 / 27
0.0%
+41
61.2%
1876
0.79
1148
1 = 0 1 0 1 0 0 0 1 0 1 = 1 = = 0 = 0 0 = 0 1 = 0 1 1
–   Movei 00.8.4032643+22
−22		(+69)10 − 19
(+6−15=8)
34.5%
10.0 / 29
0.0%
−41
58.6%
1929
0.52
1130
= 1 1 0 = 0 0 0 0 0 0 = 1 0 0 = 1 0 0 1 0 0 = = = 1 0 0 =
–   Fritz 5.322643+17
−17		(+69)13.5 − 13.5
(+9−9=9)
50.0%
13.5 / 27
0.0%
+66
60.6%
1589
0.64
963
1 1 1 0 = 1 0 = 1 0 1 0 = = 0 = = 0 0 1 1 = = = 0 0 1
–   Ktulu 4.22634+17
−17		(+60)8.5 − 13.5
(+3−8=11)
38.6%
8.5 / 22
0.0%
−4
62.9%
1144
0.82
720
= = = = = 1 0 = 0 0 = 0 0 0 = 1 = 1 0 = = 0
–   Thinker 4.7a2634+17
−17		(+60)9.5 − 14.5
(+4−9=11)
39.6%
9.5 / 24
0.0%
−5
56.1%
1352
0.56
758
= 1 = 0 0 = 0 = 0 1 0 = = 0 1 0 = = = = 0 = 1 0
–   SmarThink 0.17a2633+16
−16		(+59)10.5 − 15.5
(+7−12=7)
40.4%
10.5 / 26
0.0%
−12
61.7%
1524
0.83
941
= 1 0 = 0 0 = 0 1 1 1 = 0 0 1 = = 1 1 0 0 0 0 0 = 0
–   Ufim 8.022628+18
−18		(+54)13.5 − 11.5
(+10−8=7)
54.0%
13.5 / 25
0.0%
+78
61.6%
1785
0.74
1100
= 1 1 1 = = = = 0 = 1 1 1 = 0 0 1 0 1 0 0 0 0 1 1
–   Fritz 6 Light2627+19
−19		(+53)9.5 − 15.5
(+5−11=9)
38.0%
9.5 / 25
0.0%
−27
63.7%
1503
0.50
958
0 0 0 = = 1 = 0 0 = 0 0 = = 0 = 1 1 0 = 0 0 1 1 =
–   Trace 1.37a2622+17
−17		(+48)9 − 14
(+6−11=6)
39.1%
9.0 / 23
0.0%
−27
58.1%
1538
0.72
894
= = 0 1 1 = 0 0 0 1 0 0 1 = 0 0 0 0 0 1 = 1 =
–   AnMon 5.602621+18
−18		(+47)12 − 12
(+9−9=6)
50.0%
12.0 / 24
0.0%
+45
54.4%
1815
0.60
987
1 0 1 1 0 0 1 1 1 = 0 = = 0 1 0 0 1 = = 1 0 = 0
–   E.T. Chess 18.11.052620+21
−21		(+46)8 − 16
(+4−12=8)
33.3%
8.0 / 24
0.0%
−65
57.4%
1414
0.59
811
0 = = 0 1 = = 0 0 0 0 = 1 = 0 = 1 0 = 0 0 1 0 0
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17		(+40)13 − 16
(+11−14=4)
44.8%
13.0 / 29
0.0%
+2
53.5%
2376
1.04
1272
0 1 1 1 0 1 0 0 = 1 1 1 0 1 = 1 0 1 0 = 0 0 1 0 0 = 0 0 0
–   Yace 0.99.872609+17
−17		(+35)9.5 − 16.5
(+5−12=9)
36.5%
9.5 / 26
0.1%
−55
57.1%
1408
0.63
804
= 1 0 = 0 = 0 0 0 0 1 0 = 1 = 1 = = 1 0 = 0 = 0 0 0
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19		(+33)10.5 − 18.5
(+7−15=7)
36.2%
10.5 / 29
0.3%
−70
53.5%
2122
1.11
1136
= 0 0 1 1 0 = = = 1 1 0 0 = 0 0 0 0 = 1 = 1 0 0 0 0 0 0 1
–   Hamsters 0.52595+21
−21		(+21)11.5 − 12.5
(+10−11=3)
47.9%
11.5 / 24
5.3%
+4
54.3%
2397
0.78
1301
1 0 1 0 1 0 1 1 0 0 0 0 = = 0 1 = 1 0 0 1 0 1 1
–   Pepito 1.59 32-bit2595+19
−19		(+21)11.5 − 11.5
(+7−7=9)
50.0%
11.5 / 23
4.2%
+23
57.1%
1628
0.63
929
1 0 = 1 = 0 1 0 0 = = 0 1 = = 1 = 0 1 1 = = 0
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18		(+10)7.5 − 18.5
(+5−16=5)
28.8%
7.5 / 26
21.0%
−153
54.0%
2363
0.98
1275
0 0 0 1 0 0 0 = 0 0 = 1 0 0 = 1 = 0 0 0 0 1 1 = 0 0
–   Green Light Chess 3.002582+17
−17		(+8)15.5 − 10.5
(+12−7=7)
59.6%
15.5 / 26
23.4%
+71
60.5%
1738
0.51
1051
1 1 1 1 1 1 = = = = 1 0 1 = 1 0 0 0 0 0 = = 1 1 1 0
–   Cerebro 3.03d2572+19
−19		(−2)16 − 16
(+13−13=6)
50.0%
16.0 / 32
57.3%
−2
54.6%
2305
0.71
1258
1 = 1 0 1 = 0 0 1 0 1 0 0 0 1 0 1 = 0 0 = 1 1 0 0 1 = 1 1 1 = 0
–   Twisted Logic 20080404x2568+18
−18		(−6)15 − 15
(+11−11=8)
50.0%
15.0 / 30
68.9%
−6
53.2%
2061
0.80
1097
1 0 = 0 0 1 1 1 0 = 1 0 1 = = = 0 0 0 0 1 1 = = 0 = 0 1 1 1
–   Arasan 10.0 64-bit2564+17
−17		(−10)14.5 − 8.5
(+9−3=11)
63.0%
14.5 / 23
81.3%
+66
58.9%
1101
0.60
648
1 = = 1 = = 1 1 = 0 = = 1 1 0 0 1 = = 1 = 1 =
–   Abrok 5.02561+17
−17		(−13)14.5 − 9.5
(+12−7=5)
60.4%
14.5 / 24
86.2%
+61
57.9%
1900
0.78
1101
0 1 1 = 0 1 = = 1 0 0 0 1 1 1 = 1 1 1 1 0 1 = 0
–   Amyan 1.5972552+17
−17		(−22)13.5 − 15.5
(+9−11=9)
46.6%
13.5 / 29
97.0%
−46
59.1%
1975
0.58
1167
0 1 1 = = 0 = 0 = = 0 1 0 0 0 1 0 1 0 = 1 0 = 1 0 = 1 1 =
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18		(−23)12 − 12
(+9−9=6)
50.0%
12.0 / 24
97.4%
−18
56.8%
1485
0.81
843
1 1 0 0 1 0 1 1 0 0 1 1 0 = = = 1 = 1 0 0 = = 0
–   SpiderChess 0706032546+17
−17		(−28)14 − 13
(+11−10=6)
51.9%
14.0 / 27
99.2%
−15
53.6%
2044
0.67
1096
0 1 1 1 1 1 = 0 0 0 0 0 0 1 1 = 0 0 1 0 = 1 = = 1 1 =
–   Quark 2.352536+16
−16		(−38)15 − 13
(+11−9=8)
53.6%
15.0 / 28
100.0%
−14
59.5%
1708
0.76
1016
= = 0 1 1 0 = 1 1 = 1 0 1 0 = = 0 1 1 = 0 0 = 1 0 1 0 1
–   Gaia 3.5 64-bit2536+17
−17		(−38)17.5 − 14.5
(+15−12=5)
54.7%
17.5 / 32
99.9%
−1
54.4%
2857
0.90
1554
1 0 1 1 = = 1 0 1 1 = 0 0 1 0 1 0 = 0 1 1 0 1 1 0 1 = 0 0 1 1 0
–   King of Kings 2.562536+18
−18		(−38)16 − 10
(+14−8=4)
61.5%
16.0 / 26
99.9%
+49
55.6%
2243
0.70
1247
1 1 1 1 1 0 0 = 0 0 = 1 1 1 = 1 0 0 = 1 0 1 1 0 1 1
–   LambChop 10.992531+17
−17		(−43)16 − 13
(+12−9=8)
55.2%
16.0 / 29
100.0%
−5
59.7%
2003
0.67
1195
0 0 = 1 0 = = 0 1 0 = 1 1 = 1 0 1 0 = 1 1 1 1 = 0 0 1 = 1
–   Dragon 4.62524+16
−16		(−50)15 − 10
(+9−4=12)
60.0%
15.0 / 25
100.0%
+12
57.6%
1394
0.67
803
= 1 1 1 = 1 1 1 = 1 0 = = = = 0 = = 1 = 0 0 1 = =
–   Nejmet 3.072521+16
−16		(−53)17 − 11
(+12−6=10)
60.7%
17.0 / 28
100.0%
+19
58.3%
1653
0.69
964
= 1 = = = 0 1 1 = 1 1 = = 0 = 0 1 = 1 0 1 = 1 1 0 1 0 1
–   Snitch 1.6.2 32-bit2521+15
−15		(−53)13.5 − 11.5
(+11−9=5)
54.0%
13.5 / 25
100.0%
−29
55.1%
1851
0.75
1020
= 0 0 1 1 1 = 1 = = 1 1 = 0 0 1 0 1 0 0 1 0 1 1 0
–   RomiChess P3k 64-bit2502+18
−18		(−72)21.5 − 10.5
(+18−7=7)
67.2%
21.5 / 32
100.0%
+52
64.2%
2238
0.66
1437
0 = = = = 1 0 1 0 1 1 = 0 0 1 1 1 1 1 1 1 1 0 1 1 1 1 = 1 0 = 1
–   Amy 0.8.7b DC2500+17
−17		(−74)15.5 − 12.5
(+13−10=5)
55.4%
15.5 / 28
100.0%
−34
56.8%
2104
0.76
1196
0 1 1 = 1 0 = 0 = = 0 1 0 1 1 0 1 1 0 0 1 0 1 = 1 1 0 1
–   KnightDreamer 3.32499+16
−16		(−75)16 − 10
(+11−5=10)
61.5%
16.0 / 26
100.0%
+3
57.5%
1255
0.64
721
= 1 1 = 1 = 1 = = 1 = 1 1 = 1 = = 0 1 0 0 0 0 1 = 1
–   Francesca MAD 0.13 Nobook2493+19
−19		(−81)14.5 − 4.5
(+13−3=3)		76.3%
14.5 / 19
100.0%
+124
64.7%
1155
0.83
747
0 1 = 1 1 1 1 1 0 1 = 1 1 0 1 1 1 = 1
–   Diablo 0.5.1 JA2482+16
−16		(−92)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
+39
58.0%
2364
0.60
1372
1 1 1 1 0 = 1 0 1 1 = 0 = 1 0 0 1 1 1 1 = 0 1 1 1 1 1 0 0 1 1 =
–   PostModernist 10162480+16
−16		(−94)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
100.0%
−19
60.1%
2385
0.58
1434
1 0 1 1 0 1 1 = 1 = = = 1 0 1 0 = 0 1 1 = 1 = = 0 1 1 0 = 1 1 0
–   Djinn 0.925x2479+16
−16		(−95)17.5 − 8.5
(+15−6=5)
67.3%
17.5 / 26
100.0%
+33
58.2%
1671
0.62
973
1 = 1 1 = 1 1 1 0 1 1 = 1 0 1 0 0 1 = 1 0 1 1 = 1 0
–   Comet B682478+14
−14		(−96)12 − 14
(+9−11=6)
46.2%
12.0 / 26
100.0%
−123
54.9%
2008
0.95
1103
= 0 = 1 = 0 1 0 0 0 1 = 0 = 0 1 1 1 1 = 1 0 0 1 0 0
–   Sjeng 12.132475+14
−14		(−99)19.5 − 7.5
(+16−4=7)
72.2%
19.5 / 27
100.0%
+61
59.6%
1630
0.75
971
1 1 1 = 1 1 1 1 1 = 1 1 1 = = 0 0 = = 1 1 1 0 1 = 1 0
–   Muse 0.899b2474+16
−16		(−100)13.5 − 12.5
(+11−10=5)
51.9%
13.5 / 26
100.0%
−85
57.6%
2021
0.98
1164
0 0 0 1 1 1 1 0 0 1 0 1 1 0 0 = 1 0 = 1 0 1 1 = = =
–   Der Bringer 1.92455+15
−15		(−119)22 − 5
(+20−3=4)
81.5%
22.0 / 27
100.0%
+135
58.2%
2464
0.57
1433
0 1 1 1 1 1 1 = 1 0 1 1 1 1 1 = 0 1 1 1 1 1 1 1 1 = =
–   Phalanx XXII Reborn JA2452+15
−15		(−122)25 − 4
(+24−3=2)
86.2%
25.0 / 29
100.0%
+212
54.6%
2369
0.63
1293
1 1 1 1 1 1 1 1 = 1 0 1 1 1 1 1 1 1 1 0 = 1 1 1 1 1 0 1 1
1370 games in total: 516 wins, 507 losses, 347 draws (25.3%), score: 50.3%
Average opponent: −2.9 (2571.1), average distance to opponent: 58.6

Performance

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

Perf = C − 0.327 [±0.271] * 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