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
Uralochka 1.1b UCI#108  (2272+18
−18
)Quote
Author: Ivan Maklyakov (Russia) Released: 2008-04-10Link: Homepage
This engine is stable and runs without issues.
This is the only Uralochka version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Averno 0.812396+15
−15
(+124)7.5 − 24.5
(+6−23=3)
23.4%
7.5 / 32
0.0%
−101
52.4%
2804
0.68
1470
0 0 0 = 0 0 0 0 1 0 0 0 0 = 0 0 0 1 0 0 0 0 0 1 1 0 1 = 0 0 1 0
–   Scidlet 3.61 64-bit JA2390+15
−15
(+118)12.5 − 19.5
(+6−13=13)
39.1%
12.5 / 32
0.0%
+50
54.0%
1788
0.93
965
1 = = = 1 0 1 = = = 0 = = = 0 0 = 0 = 0 1 0 0 0 0 0 1 1 0 0 = =
–   KnightX 1.922385+15
−15
(+113)14.5 − 17.5
(+12−15=5)
45.3%
14.5 / 32
0.0%
+77
53.4%
2693
0.95
1439
0 1 0 = 0 = 1 1 0 = 0 1 0 0 1 1 1 1 1 0 0 0 = 0 1 1 = 0 0 0 1 0
–   Eeyore 1.482384+15
−15
(+112)10 − 22
(+6−18=8)
31.3%
10.0 / 32
0.0%
−21
53.8%
2463
0.88
1326
= 0 1 1 0 0 0 0 0 0 0 0 0 1 0 0 1 = 0 = = = 0 = 0 0 = 0 0 1 = 1
–   Ayito 0.2.9942371+16
−16
(+99)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
+11
54.6%
2228
0.85
1216
1 0 0 1 = = = = 1 0 = 0 1 0 0 0 0 0 0 = 0 1 0 = 0 0 0 1 1 = 1 0
–   Matilde 2008 64-bit2368+15
−15
(+96)16 − 16
(+12−12=8)
50.0%
16.0 / 32
0.0%
+96
53.8%
2057
1.08
1106
1 0 1 = = 0 = 1 0 0 0 0 1 = 1 0 1 1 1 0 1 0 0 1 0 1 = = 1 0 = =
–   Natwarlal 0.142359+17
−17
(+87)14 − 18
(+11−15=6)
43.8%
14.0 / 32
0.0%
+39
54.7%
2494
1.01
1365
0 0 0 = 1 1 0 0 1 1 1 0 1 1 = = = 0 0 0 1 1 = 0 0 1 0 0 1 0 = 0
–   EXchess 5.01 beta 64-bit JA2355+14
−14
(+83)16 − 16
(+13−13=6)
50.0%
16.0 / 32
0.0%
+81
51.6%
2535
1.00
1308
1 0 0 0 0 0 = 0 1 1 0 1 0 1 = 1 = 0 1 0 0 1 1 = 0 1 0 = = 1 1 1
–   Zeus 1.292346+16
−16
(+74)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
0.0%
+42
56.7%
2632
0.67
1493
1 = 0 1 0 = = 1 = = 0 0 1 = 0 0 1 1 = 0 0 0 = 1 0 1 = 0 1 0 1 0
–   Esc 1.162345+15
−15
(+73)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
−7
52.4%
2128
0.91
1115
0 1 0 0 1 0 1 1 = = = 0 = 0 0 0 0 0 1 0 0 = 1 0 = 0 = 1 0 0 1 1
–   Popochin 3.22341+19
−19
(+69)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
0.0%
+33
53.5%
2514
1.08
1346
0 1 1 1 0 1 1 = 0 0 0 0 0 1 1 0 0 1 = = 1 1 0 = = = 1 0 0 = 0 0
–   ANT 2006-F2333+16
−16
(+61)12.5 − 19.5
(+11−18=3)
39.1%
12.5 / 32
0.0%
−25
54.2%
2775
0.64
1503
1 0 1 = 1 0 1 0 0 0 0 0 1 0 = 0 1 1 1 0 1 0 0 0 0 0 1 0 0 0 1 =
–   Anechka 0.082320+16
−16
(+48)13 − 19
(+10−16=6)
40.6%
13.0 / 32
0.0%
−20
53.2%
2809
0.73
1494
0 1 = 1 1 1 = 0 0 0 0 0 0 = = 1 = 1 1 0 0 0 1 1 0 0 0 = 0 0 1 0
–   Dorky 3.482308+16
−16
(+36)13 − 19
(+9−15=8)
40.6%
13.0 / 32
0.1%
−31
54.2%
2492
0.93
1350
0 = 0 1 0 0 = 0 1 0 = 0 1 1 1 0 1 0 0 0 0 = = 0 1 0 = 1 = = 0 1
–   CyberPagno 2.1 32MB2295+16
−16
(+23)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
2.6%
−53
55.2%
2433
0.86
1342
0 0 1 = 0 0 1 0 1 1 = = 1 0 1 = 0 0 1 1 0 0 1 = 0 = 0 = 0 0 0 0
–   Latista (Sinobyl) 1.52289+16
−16
(+17)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
7.1%
−41
52.5%
2495
0.81
1310
0 1 1 = 0 0 0 0 = 1 = 0 0 1 1 1 1 0 1 0 = 1 = 1 0 0 = 0 0 0 0 =
–   Madeleine 0.22285+15
−15
(+13)12.5 − 19.5
(+7−14=11)
39.1%
12.5 / 32
13.1%
−58
51.9%
2131
1.06
1106
= = 1 0 = 1 0 0 0 0 1 0 = 0 0 1 0 = = 1 0 = 0 0 0 = = 1 = 1 0 =
–   Chispa 4.0.32273+14
−14
(+1)18 − 14
(+12−8=12)
56.3%
18.0 / 32
46.9%
+40
55.0%
1585
0.77
871
1 = = 1 = 1 = = 0 1 = 1 = 0 1 = 1 = 0 0 1 = 1 1 = 1 = 0 1 0 0 0
–   Atlas 2.202271+17
−17
(−1)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
54.8%
−81
  
= 0 = 0 = 1 0 = 1 0 1 0 0 0 0 1 = 0 0 1 0 0 1 0 0 0 1 0 = 1 1 =
–   Genesis 2.02247+16
−16
(−25)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
98.3%
−13
52.0%
2320
0.87
1207
= 1 0 0 1 = = = = 1 0 1 1 0 1 1 = = 0 0 0 1 0 0 0 = 1 = 1 0 1 1
–   Lime 662241+18
−18
(−31)17 − 15
(+14−12=6)
53.1%
17.0 / 32
99.3%
−6
52.9%
2705
0.89
1431
1 0 = 0 0 0 1 0 = = 1 0 0 0 1 1 1 = 1 1 1 = 1 1 0 0 1 0 0 = 1 1
–   InmiChess 3.06N2241+15
−15
(−31)12 − 20
(+8−16=8)
37.5%
12.0 / 32
99.6%
−118
54.9%
2166
0.83
1189
0 = = 1 = 0 0 0 0 1 1 1 1 0 0 0 0 0 = = 0 0 = 0 1 0 = = 1 0 0 1
–   Nesik 0.7.0 alpha2237+16
−16
(−35)18.5 − 13.5
(+16−11=5)
57.8%
18.5 / 32
99.9%
+24
53.5%
3113
0.65
1664
0 0 1 1 1 0 = 0 0 0 1 1 0 1 = 1 = 1 1 0 1 = 1 1 0 1 1 = 1 0 0 1
–   NagaSkaki 5.122232+18
−18
(−40)18 − 14
(+13−9=10)
56.3%
18.0 / 32
99.9%
+3
53.5%
2055
0.82
1100
= 1 1 1 0 = = 0 = 1 1 0 1 0 1 1 0 0 1 = = = = 1 0 1 0 1 = 1 = 0
–   Sunsetter C10.3 64-bit JA2232+16
−16
(−40)16 − 16
(+14−14=4)
50.0%
16.0 / 32
100.0%
−41
55.0%
3004
1.06
1652
0 = 0 1 1 0 0 1 1 1 1 0 0 1 0 = 1 1 0 0 0 0 1 1 0 0 1 = = 1 0 1
–   Alarm 0.93.12226+16
−16
(−46)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
100.0%
−33
52.1%
2499
1.21
1301
1 0 0 1 0 0 1 = 0 0 0 1 1 1 1 = 1 0 1 1 = 1 0 0 1 = = 0 0 = 1 =
–   Fortress 1.622216+15
−15
(−56)20.5 − 11.5
(+19−10=3)
64.1%
20.5 / 32
100.0%
+59
54.4%
2706
1.22
1471
0 1 1 0 1 0 1 1 1 0 0 1 0 0 0 1 1 1 1 = 1 = 1 1 1 1 1 1 1 = 0 0
–   WJChess 1.642215+16
−16
(−57)21 − 11
(+19−9=4)
65.6%
21.0 / 32
100.0%
+67
54.1%
2428
0.84
1314
0 1 0 0 1 = 1 1 1 0 = 1 1 1 1 1 1 1 1 0 0 1 1 = 1 1 1 0 0 1 = 0
–   Gk 0.90 64-bit JA2194+16
−16
(−78)17 − 15
(+14−12=6)
53.1%
17.0 / 32
100.0%
−53
52.8%
2948
0.81
1558
1 = = 0 1 0 0 = 0 1 0 1 0 1 1 0 = 1 1 1 0 1 0 = 1 0 1 1 0 1 0 =
–   Alf 1.09 JA2193+17
−17
(−79)22 − 10
(+19−7=6)
68.8%
22.0 / 32
100.0%
+61
53.9%
2316
0.90
1248
= 1 1 1 = 1 = 0 1 1 0 1 1 0 1 = 0 1 0 0 1 1 1 0 = 1 1 1 1 = 1 1
–   Clarabit 1.00 64-bit2193+18
−18
(−79)20 − 12
(+15−7=10)
62.5%
20.0 / 32
100.0%
+6
49.8%
2489
0.87
1239
1 1 1 1 = 1 1 = = 0 1 1 0 = 1 = = 1 1 1 0 1 = 0 = 0 = = 1 0 0 1
–   Ghost 0.142189+17
−17
(−83)18 − 14
(+15−11=6)
56.3%
18.0 / 32
100.0%
−37
51.5%
2535
1.21
1306
0 0 1 1 1 0 1 = 0 1 1 1 1 0 1 1 0 1 0 = 0 1 = = 1 = 0 1 0 0 = 1
–   Wing 2.0a2179+16
−16
(−93)20 − 12
(+19−11=2)
62.5%
20.0 / 32
100.0%
+11
51.6%
2554
0.76
1319
0 1 1 = 1 0 1 1 0 1 1 1 0 1 0 1 1 0 0 1 0 1 1 0 = 1 1 1 1 0 1 0
–   Uragano 3D 0.872174+16
−16
(−98)22 − 10
(+19−7=6)
68.8%
22.0 / 32
100.0%
+43
54.3%
1868
0.92
1015
= = 1 1 1 1 = 1 0 1 1 = 1 0 1 1 = 0 1 0 0 1 0 1 1 1 1 1 0 = 1 1
–   Parrot 0707222161+17
−17
(−111)24 − 8
(+22−6=4)
75.0%
24.0 / 32
100.0%
+91
48.8%
2369
1.01
1155
= 0 1 = 1 1 1 1 1 = 0 0 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 0 = 1
–   Matheus 2.32144+15
−15
(−128)21 − 11
(+18−8=6)
65.6%
21.0 / 32
100.0%
−9
54.1%
2201
0.89
1190
1 = 1 = 1 1 1 1 = = 0 1 1 1 1 0 1 0 1 1 1 1 0 1 1 = 0 0 0 = 1 0
–   Bodo 0.2b2137+15
−15
(−135)20 − 12
(+16−8=8)
62.5%
20.0 / 32
100.0%
−45
54.1%
1666
0.93
901
0 1 = = 1 1 1 1 0 0 0 1 1 0 = = 0 1 1 1 = = 1 = 0 = 1 1 1 1 1 0
–   Monarch 1.72131+16
−16
(−141)21 − 11
(+17−7=8)
65.6%
21.0 / 32
100.0%
−30
56.1%
2057
1.22
1153
= 1 1 0 = = = 1 0 = 1 1 1 1 1 = 0 1 = 1 1 0 0 0 0 1 1 1 1 1 1 =

Performance

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

Perf = C + 0.068 [±0.215] * 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