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
Ufim 8.02 UCI#36  (2628+18
−18		)Quote
Author: Niyaz Khasanov (Russia) Released: 2006-07-20Link: WBEC
This engine is stable and runs without issues.
This is the only Ufim version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   List 5.122699+18
−18		(+71)17 − 11
(+8−2=18)
60.7%
17.0 / 28
0.0%
+127
53.6%
946
0.82
507
1 1 1 = = 1 = 1 = = = = = = = = 1 = = 1 = = 0 1 = = 0 =
–   SOS 5.12697+18
−18		(+69)9.5 − 17.5
(+6−14=7)
35.2%
9.5 / 27
0.0%
−36
54.9%
2047
0.84
1123
0 1 = = 0 0 1 0 0 0 0 0 0 = 0 = 0 1 0 1 0 = = 1 0 1 =
–   Colossus 2007c2694+19
−19		(+66)14 − 13
(+10−9=8)
51.9%
14.0 / 27
0.0%
+81
56.7%
2028
0.67
1150
= 1 1 = 1 1 0 = 0 = 1 1 0 1 1 0 1 0 0 = 1 0 0 = = = 0
–   Ruffian 1.0.52687+17
−17		(+59)12 − 13
(+8−9=8)
48.0%
12.0 / 25
0.0%
+43
54.0%
1853
0.78
1001
0 = 0 0 = 0 = 0 0 = = 1 1 1 = 1 = 1 1 = 1 0 0 0 1
–   Petir 4.392682+18
−18		(+54)6 − 18
(+2−14=8)
25.0%
6.0 / 24
0.0%
−118
63.2%
1521
0.71
961
0 0 = 0 = = 0 = 0 0 0 1 0 0 0 = 0 = = 0 0 1 = 0
–   Pseudo 0.7c2680+18
−18		(+52)16 − 11
(+11−6=10)
59.3%
16.0 / 27
0.0%
+109
58.5%
1806
0.86
1057
1 1 1 0 1 = 1 0 = = = 0 1 = = 0 1 = 0 = = 1 1 1 0 1 =
–   Aristarch 4.502671+18
−18		(+43)6.5 − 18.5
(+3−15=7)
26.0%
6.5 / 25
0.0%
−123
49.8%
1507
0.67
750
= 0 0 = = 1 = = 0 0 0 0 0 = 1 0 0 1 0 = 0 0 0 0 0
–   Petir 4.9999992670+19
−19		(+42)15 − 10
(+11−6=8)
60.0%
15.0 / 25
0.0%
+108
56.1%
1884
0.87
1056
= = 1 1 1 1 1 1 = = 0 1 0 = 0 0 = 0 = 0 1 = 1 1 1
–   Hamsters 0.62669+18
−18		(+41)11 − 11
(+8−8=6)
50.0%
11.0 / 22
0.0%
+42
59.4%
1898
0.78
1127
= 0 1 = = = 0 0 1 0 1 0 0 0 1 = 1 = 1 1 0 1
–   The Baron 2.23 64-bit2669+19
−19		(+41)14 − 18
(+10−14=8)
43.8%
14.0 / 32
0.0%
−2
58.6%
2116
0.85
1239
1 1 0 0 1 1 = 0 1 1 0 = 0 1 1 = = 0 = 0 0 = = 1 0 0 0 1 0 0 0 =
–   Booot 4.13.12668+18
−18		(+40)12.5 − 13.5
(+7−8=11)
48.1%
12.5 / 26
0.0%
+27
58.0%
1741
0.65
1010
1 1 0 = 1 = 1 0 = 0 = = 1 = 0 0 1 = 0 = = = 0 0 = 1
–   BugChess2 1.5.22661+18
−18		(+33)17 − 9
(+13−5=8)
65.4%
17.0 / 26
0.2%
+138
56.9%
1795
0.95
1021
1 1 = = 1 1 1 0 0 = 1 0 = = 1 = 1 0 0 1 1 = 1 1 1 =
–   Jonny 2.832652+17
−17		(+24)9 − 16
(+7−14=4)
36.0%
9.0 / 25
2.0%
−86
54.0%
2184
0.62
1180
1 0 0 0 1 0 1 0 0 1 0 = 0 0 1 = = 0 1 0 0 = 0 1 0
–   Crafty 21.5 64-bit PS2652+17
−17		(+24)10 − 19
(+7−16=6)
34.5%
10.0 / 29
1.6%
−91
56.0%
2340
0.71
1311
0 = 0 0 = 0 0 0 1 = 0 0 0 0 0 0 0 1 1 0 = 1 = 0 1 = 1 0 1
–   The Baron 1.8.12651+18
−18		(+23)7.5 − 18.5
(+4−15=7)
28.8%
7.5 / 26
2.5%
−124
55.4%
1883
0.74
1043
0 1 0 0 = 0 0 0 = = 1 0 0 0 = = 1 0 0 0 0 = 1 = 0 0
–   Anaconda 2.0.12644+17
−17		(+16)13 − 10
(+10−7=6)
56.5%
13.0 / 23
8.0%
+62
60.1%
1645
0.88
988
1 0 1 1 1 1 0 = = 1 0 1 1 1 1 0 0 = 0 = 0 = =
–   Movei 00.8.4032643+22
−22		(+15)11 − 17
(+7−13=8)
39.3%
11.0 / 28
12.3%
−61
53.3%
2355
0.71
1255
0 = 1 1 0 1 = 0 0 0 0 0 0 1 0 0 1 = 0 0 = = = 0 1 = = 1
–   Fritz 5.322643+17
−17		(+15)14.5 − 16.5
(+12−14=5)
46.8%
14.5 / 31
9.2%
−9
61.7%
2442
0.68
1506
= 0 1 = 1 0 1 1 0 0 0 = 0 1 0 1 = 0 1 0 1 1 0 0 1 0 1 0 = 1 0
–   Ktulu 4.22634+17
−17		(+6)12 − 14
(+9−11=6)
46.2%
12.0 / 26
30.5%
−23
57.7%
2124
0.77
1225
0 0 1 1 = 0 1 1 1 = 1 = 0 1 0 0 = = 1 0 0 = 0 0 0 1
–   Thinker 4.7a2634+17
−17		(+6)12.5 − 15.5
(+6−9=13)
44.6%
12.5 / 28
29.6%
−28
58.3%
1623
0.83
947
0 0 1 1 = = 0 = 1 0 0 = = = 0 1 = = = = 0 = 0 0 = = 1 1
–   SmarThink 0.17a2633+16
−16		(+5)16.5 − 11.5
(+12−7=9)
58.9%
16.5 / 28
33.7%
+65
54.2%
1640
0.77
889
0 = = 0 1 0 1 1 0 1 0 1 0 0 = 1 1 = = = 1 1 = = 1 = 1 1
–   Fritz 6 Light2627+19
−19		(−1)13 − 13
(+11−11=4)
50.0%
13.0 / 26
54.2%
−2
62.3%
2145
0.86
1336
1 0 0 1 1 0 = 1 1 = 1 1 0 0 0 = 0 1 1 0 = 1 0 0 0 1
–   Trace 1.37a2622+17
−17		(−6)9 − 15
(+6−12=6)
37.5%
9.0 / 24
68.2%
−92
58.8%
1664
0.70
979
1 1 1 = 0 1 0 0 0 0 0 = 0 0 0 0 0 1 = = 1 0 = =
–   AnMon 5.602621+18
−18		(−7)11 − 12
(+6−7=10)
47.8%
11.0 / 23
72.7%
−15
61.4%
1349
0.65
828
0 1 1 = 0 = 0 1 1 = = = = 0 1 = = = 0 0 1 = 0
–   E.T. Chess 18.11.052620+21
−21		(−8)3 − 3
(+2−2=2)		50.0%
3.0 / 6
72.9%
−1359.2%
407
0.68
241
= 1 1 0 = 0
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17		(−14)15 − 12
(+11−8=8)
55.6%
15.0 / 27
88.2%
+21
56.0%
1909
0.69
1069
= 1 = = 0 1 = 0 0 1 = 0 1 = 0 1 1 0 1 1 1 1 0 1 = 0 =
–   Yace 0.99.872609+17
−17		(−19)14 − 11
(+11−8=6)
56.0%
14.0 / 25
94.9%
+20
57.1%
1791
0.73
1022
1 0 1 0 0 0 0 0 1 = 1 1 0 1 1 1 1 = 0 = = = 1 1 =
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19		(−21)16 − 12
(+12−8=8)
57.1%
16.0 / 28
95.4%
+31
56.0%
2020
0.61
1132
1 0 0 1 0 = 0 = 1 1 1 = = 1 = 1 1 1 1 0 0 = 0 = 1 1 = 0
–   Hamsters 0.52595+21
−21		(−33)13 − 10
(+9−6=8)
56.5%
13.0 / 23
99.4%
+10
54.5%
1584
0.95
864
1 0 = 0 1 = = 1 0 = 1 1 1 1 = 0 = = 1 0 = 0 1
–   Pepito 1.59 32-bit2595+19
−19		(−33)12 − 14
(+9−11=6)
46.2%
12.0 / 26
99.6%
−60
54.1%
1795
0.63
971
= 0 0 = 1 1 1 1 = 1 0 0 1 0 1 0 = 0 1 1 0 0 0 0 = =
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18		(−44)13.5 − 11.5
(+10−8=7)
54.0%
13.5 / 25
100.0%
−15
53.0%
2200
0.74
1165
1 0 0 = = 1 1 0 = 1 1 1 1 = = 0 = 1 0 1 0 = 0 0 1
–   Green Light Chess 3.002582+17
−17		(−46)10 − 12
(+5−7=10)
45.5%
10.0 / 22
100.0%
−73
59.6%
1169
0.59
697
= 0 0 = 1 0 0 = = = = = = 1 1 = = 1 0 1 0 0
–   Tao 5.62574+17
−17		(−54)11.5 − 13.5
(+8−10=7)
46.0%
11.5 / 25
100.0%
−78
61.6%
1785
0.74
1100
= 0 0 0 = = = = 1 = 0 0 0 = 1 1 0 1 0 1 1 1 1 0 0
–   Cerebro 3.03d2572+19
−19		(−56)21.5 − 10.5
(+15−4=13)
67.2%
21.5 / 32
100.0%
+51
53.1%
1710
1.02
908
0 = 1 = 1 1 1 1 = = 1 1 1 = 1 1 0 = = 1 1 = 1 0 1 = = 0 = = = 1
–   Twisted Logic 20080404x2568+18
−18		(−60)18.5 − 7.5
(+17−6=3)
71.2%
18.5 / 26
100.0%
+111
53.6%
1859
1.06
997
1 = 1 1 0 1 1 0 1 0 1 1 1 0 1 1 1 1 1 = 1 1 0 1 = 0
–   Arasan 10.0 64-bit2564+17
−17		(−64)11 − 14
(+7−10=8)
44.0%
11.0 / 25
100.0%
−104
62.4%
1568
0.65
978
0 0 0 0 1 1 1 1 = = = 0 = = 1 0 0 0 1 = 0 = 0 1 =
–   Abrok 5.02561+17
−17		(−67)16.5 − 12.5
(+11−7=11)
56.9%
16.5 / 29
100.0%
−24
58.4%
1885
0.80
1101
= = = 1 = 1 = 0 0 = 0 0 0 1 1 1 1 = 1 1 = 0 1 = 1 0 = = 1
–   Amyan 1.5972552+17
−17		(−76)22.5 − 9.5
(+19−6=7)
70.3%
22.5 / 32
100.0%
+73
60.3%
2428
0.92
1465
1 = 1 1 1 0 1 1 = = 1 1 1 0 1 1 1 0 0 1 1 1 0 = 0 1 = 1 = = 1 1
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18		(−77)20 − 9
(+17−6=6)
69.0%
20.0 / 29
100.0%
+62
55.7%
2014
0.86
1121
1 = 0 1 1 1 0 1 1 = 0 1 = = = 0 1 0 = 1 1 0 1 1 1 1 1 1 1
–   SpiderChess 0706032546+17
−17		(−82)18.5 − 8.5
(+16−6=5)
68.5%
18.5 / 27
100.0%
+55
53.7%
2410
0.74
1293
0 1 1 1 1 1 1 = 1 1 0 = 1 1 1 0 = = 1 = 1 0 1 0 0 1 1
–   Quark 2.352536+16
−16		(−92)17.5 − 9.5
(+14−6=7)
64.8%
17.5 / 27
100.0%
+12
55.6%
1665
0.77
926
= 1 1 = = 1 0 1 0 1 1 0 = 0 1 1 = 1 1 1 = 0 = 1 1 1 0
–   Gaia 3.5 64-bit2536+17
−17		(−92)19 − 13
(+17−11=4)
59.4%
19.0 / 32
100.0%
−17
57.2%
2924
1.00
1673
0 1 0 0 = 1 1 1 0 = 1 0 0 1 0 1 = 1 1 0 0 1 1 0 1 1 1 0 = 1 1 1
–   King of Kings 2.562536+18
−18		(−92)15.5 − 9.5
(+11−5=9)
62.0%
15.5 / 25
100.0%
−16
55.3%
1397
0.67
773
= = 1 = 1 0 1 1 1 = 0 0 1 1 1 0 1 = = = 1 1 0 = =
–   LambChop 10.992531+17
−17		(−97)17.5 − 7.5
(+14−4=7)
70.0%
17.5 / 25
100.0%
+43
57.0%
2009
0.94
1145
1 = 1 1 1 = 0 1 = = 0 1 0 0 1 1 1 = 1 1 1 = 1 = 1
–   Dragon 4.62524+16
−16		(−104)16 − 11
(+11−6=10)
59.3%
16.0 / 27
100.0%
−42
57.6%
1685
0.73
971
1 0 1 = = 0 1 1 1 = 1 0 = = = 1 0 0 = = = 0 1 1 1 1 =
–   Nejmet 3.072521+16
−16		(−107)16 − 8
(+12−4=8)
66.7%
16.0 / 24
100.0%
+1
57.2%
1305
0.79
746
1 1 0 1 0 1 = 1 = = 0 = 1 1 0 1 1 = 1 = = 1 = 1
–   Snitch 1.6.2 32-bit2521+15
−15		(−107)13 − 14
(+7−8=12)
48.1%
13.0 / 27
100.0%
−116
54.5%
1452
0.98
792
1 = 1 = = = 0 0 0 = = 0 1 0 0 = 1 = 1 1 0 = = 0 = = 1
–   Comet B682478+14
−14		(−150)18 − 6
(+14−2=8)
75.0%
18.0 / 24
100.0%
+17
58.6%
1357
0.92
795
1 1 = 0 = 1 = = 1 0 = 1 1 1 = = 1 1 = 1 1 1 1 1
–   Sjeng 12.132475+14
−14		(−153)16 − 8
(+14−6=4)
66.7%
16.0 / 24
100.0%
−27
57.6%
1742
0.92
1003
1 1 0 = 1 0 1 0 1 1 1 1 1 = = 1 0 1 0 1 1 0 = 1
1273 games in total: 487 wins, 411 losses, 375 draws (29.5%), score: 53.0%
Average opponent: −21.0 (2607), average distance to opponent: 51.9

Performance

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

Perf = C + 0.119 [±0.326] * 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