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
Anechka 0.08 UCI#102  (2320+16
−16		)Quote
Author: Sergei Nefedov (Russia) Released: 2006-07-15Links: WBEC, SDchess
This engine is stable and runs without issues.
This is the only Anechka version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Patzer 3.802460+16
−16		(+140)16 − 16
(+13−13=6)
50.0%
16.0 / 32
0.0%
+141
46.4%
2257
1.09
1048
= = 1 0 = = 0 1 0 0 1 1 0 0 0 1 0 1 0 0 = 0 0 1 1 1 = 1 1 0 1 1
–   Gosu 0.162455+16
−16		(+135)8.5 − 23.5
(+5−20=7)
26.6%
8.5 / 32
0.0%
−37
52.0%
2556
0.94
1330
0 0 = = 0 1 1 0 1 = 0 0 1 0 0 = = 0 0 0 0 0 = 0 1 0 0 = 0 0 0 0
–   Phalanx XXII Reborn JA2452+15
−15		(+132)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−34
49.4%
2866
0.84
1416
0 0 0 0 0 = 0 = = 0 0 1 1 0 0 = 0 0 = 0 0 1 0 0 = 1 0 0 0 1 1 0
–   Betsy 6.51 Nobook2450+15
−15		(+130)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−35
58.5%
2557
0.94
1496
1 0 1 0 0 0 0 0 = 0 0 0 0 0 1 = 0 0 0 0 1 = 0 0 0 1 = 0 0 1 = =
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(+128)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
+50
53.6%
2361
1.02
1265
1 0 0 1 0 0 1 = 1 = 0 0 1 0 = = 0 0 0 0 1 0 1 = 0 0 = 0 0 = 1 1
–   Amateur 2.822446+15
−15		(+126)14 − 18
(+10−14=8)
43.8%
14.0 / 32
0.0%
+79
55.1%
2212
1.23
1218
= = 0 1 = 1 0 0 0 0 1 0 0 = 0 1 0 0 0 = 1 1 1 0 0 = 1 0 1 = 1 =
–   Tytan 9.32 64-bit2429+17
−17		(+109)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
0.0%
+73
  
= 0 = 1 0 = = 0 0 0 1 1 0 1 1 1 1 0 0 1 0 1 = 1 = = 0 0 0 0 1 0
–   Thor's Hammer 2.28 32-bit2417+15
−15		(+97)7 − 25
(+6−24=2)
21.9%
7.0 / 32
0.0%
−147
55.6%
2767
1.18
1539
1 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 = 0 = 0 0 0 0 0 0 1 0 0 1 0 0
–   Arion 1.72415+16
−16		(+95)9.5 − 22.5
(+4−17=11)
29.7%
9.5 / 32
0.0%
−40
62.0%
2219
0.51
1375
0 0 = = 1 0 = 0 = = = 0 = 0 0 1 1 0 0 = 0 = 0 = 0 0 0 1 0 0 0 =
–   AICE 0.99.22411+16
−16		(+91)11.5 − 20.5
(+6−15=11)
35.9%
11.5 / 32
0.0%
−1
54.0%
1464
0.99
790
0 1 1 0 = = 0 0 0 0 = = = 0 1 0 0 = 0 = 0 1 0 = = = = 1 0 1 0 0
–   Chezzz 1.0.32409+15
−15		(+89)13 − 19
(+11−17=4)
40.6%
13.0 / 32
0.0%
+15
51.7%
2836
0.81
1466
0 0 0 0 0 0 1 1 1 0 = 1 1 0 1 1 0 = 0 0 0 0 = 0 1 0 0 0 1 1 1 =
–   Asterisk 0.62402+17
−17		(+82)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−9
54.5%
2398
0.71
1306
0 = 1 0 = 1 0 0 0 0 = 1 1 0 1 0 1 0 = 0 0 0 = 0 = 0 0 1 = 1 = 0
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(+82)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
0.0%
+71
55.3%
2906
0.57
1607
1 1 1 0 1 1 0 0 1 0 = 1 1 0 0 0 = = 0 1 0 0 = 0 1 0 = = 1 1 0 =
–   Averno 0.812396+15
−15		(+76)12 − 20
(+6−14=12)
37.5%
12.0 / 32
0.0%
−4
51.3%
2203
0.61
1131
0 = 0 0 = 0 0 1 1 0 = 0 1 0 = 1 0 = = = = 0 0 1 0 = = = = 0 0 1
–   Scidlet 3.61 64-bit JA2390+15
−15		(+70)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.0%
+49
58.9%
2522
0.70
1486
1 1 1 0 0 1 1 1 0 0 0 = 0 1 0 = 0 = 1 = 1 1 0 1 0 0 = = = = 0 0
–   KnightX 1.922385+15
−15		(+65)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−101
55.1%
2294
0.94
1263
0 0 0 = 1 0 0 0 = 1 0 1 0 0 = 0 = 0 0 0 0 0 1 0 1 = 0 0 1 0 = 0
–   Eeyore 1.482384+15
−15		(+64)8.5 − 23.5
(+4−19=9)
26.6%
8.5 / 32
0.0%
−100
57.3%
2105
0.55
1206
0 0 = 0 = 0 = = = 0 0 = 0 = 1 1 0 0 0 0 = 0 = 0 1 0 1 0 0 0 0 0
–   Ayito 0.2.9942371+16
−16		(+51)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−35
53.7%
2384
0.92
1280
= 1 = = 0 0 1 0 0 = 0 0 0 0 0 = 1 0 0 0 1 1 0 1 0 1 0 = 0 = 1 =
–   Matilde 2008 64-bit2368+15
−15		(+48)19 − 13
(+16−10=6)
59.4%
19.0 / 32
0.0%
+118
57.9%
2569
0.64
1487
0 = 0 1 0 1 1 1 1 1 = 1 1 0 0 1 0 1 = 0 0 1 1 0 = 0 = 1 1 1 1 =
–   Natwarlal 0.142359+17
−17		(+39)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
−79
54.8%
2231
1.05
1223
= 0 = 0 0 0 1 = 1 = 1 0 0 0 = 1 0 = 0 = 0 0 0 0 0 0 1 0 1 = = 0
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(+35)15.5 − 16.5
(+9−10=13)
48.4%
15.5 / 32
0.1%
+25
54.0%
2097
0.75
1132
0 0 0 1 0 = = 1 1 = = 1 1 = = = = 1 0 = 0 1 = 0 0 = = = 1 0 0 1
–   Zeus 1.292346+16
−16		(+26)16 − 16
(+11−11=10)
50.0%
16.0 / 32
1.0%
+28
56.1%
2083
0.89
1169
0 = = 0 1 = 1 1 1 1 = 0 0 0 1 = = = 1 = 0 = 1 = 0 0 0 1 0 0 1 1
–   Esc 1.162345+15
−15		(+25)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
1.2%
−28
54.1%
2334
0.82
1263
1 0 1 0 = = = 1 = 0 1 = 0 1 0 = 0 0 0 0 0 0 = = 0 1 1 1 0 0 1 =
–   Popochin 3.22341+19
−19		(+21)11 − 21
(+9−19=4)
34.4%
11.0 / 32
4.1%
−103
56.0%
3019
0.60
1691
0 0 0 0 0 0 = 1 = 0 0 1 1 = 1 0 0 1 = 0 0 0 0 1 1 0 1 0 1 0 0 0
–   ANT 2006-F2333+16
−16		(+13)16.5 − 15.5
(+14−13=5)
51.6%
16.5 / 32
11.7%
+25
55.3%
2481
0.65
1373
= 1 1 0 1 1 0 0 0 0 1 1 1 1 = 1 1 = 0 = 0 0 0 1 0 1 = 0 1 0 0 1
–   Dorky 3.482308+16
−16		(−12)17.5 − 14.5
(+15−12=5)
54.7%
17.5 / 32
86.4%
+22
55.1%
2436
1.05
1342
0 1 1 1 = 0 = 0 0 0 1 1 1 1 = 1 0 0 0 0 0 1 1 1 1 1 1 0 0 1 = =
–   CyberPagno 2.1 32MB2295+16
−16		(−25)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
99.1%
−12
58.9%
2789
0.53
1643
= = 0 1 1 = 0 = 0 1 0 1 1 1 1 = 0 0 1 0 0 1 = 1 1 0 1 0 0 = 0 1
–   Latista (Sinobyl) 1.52289+16
−16		(−31)19.5 − 12.5
(+13−6=13)
60.9%
19.5 / 32
99.8%
+39
53.1%
1786
0.88
948
1 1 = 1 1 1 0 = 1 = 1 = 0 0 1 1 1 = 0 = = 1 0 = 0 1 = = = = = 1
–   Madeleine 0.22285+15
−15		(−35)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
99.9%
+40
52.5%
2836
0.74
1489
0 0 = 1 1 1 = 0 1 = 0 1 1 = 1 = 1 0 0 1 = 0 1 1 = 1 = 1 0 = 1 1
–   Chispa 4.0.32273+14
−14		(−47)16 − 16
(+9−9=14)
50.0%
16.0 / 32
100.0%
−46
49.2%
1891
0.93
930
1 0 = = 1 0 0 = = = = 1 0 1 1 1 1 0 0 = = 0 0 = = = = 1 0 = 1 =
–   Uralochka 1.1b2272+18
−18		(−48)19 − 13
(+16−10=6)
59.4%
19.0 / 32
100.0%
+20
53.2%
2809
0.73
1494
1 0 = 0 0 0 = 1 1 1 1 1 1 = = 0 = 0 0 1 1 1 0 0 1 1 1 = 1 1 0 1
–   Atlas 2.202271+17
−17		(−49)13.5 − 18.5
(+11−16=5)
42.2%
13.5 / 32
100.0%
−110
  
= 1 1 0 1 0 = = 1 0 = 1 1 0 = 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1
–   Genesis 2.02247+16
−16		(−73)20.5 − 11.5
(+19−10=3)
64.1%
20.5 / 32
100.0%
+41
53.7%
3421
0.53
1836
1 1 0 1 1 1 1 1 0 1 1 0 0 1 1 = 0 1 0 1 = 1 = 0 0 1 1 1 1 0 1 0
–   Lime 662241+18
−18		(−79)15 − 17
(+13−15=4)
46.9%
15.0 / 32
100.0%
−104
50.2%
2976
0.89
1494
1 1 0 = 0 0 0 1 1 1 0 1 1 0 = 0 0 0 1 = 0 1 1 1 0 0 0 0 1 1 0 =
–   InmiChess 3.06N2241+15
−15		(−79)20.5 − 11.5
(+18−9=5)
64.1%
20.5 / 32
100.0%
+29
53.4%
2218
0.81
1185
1 0 1 1 1 1 = 1 0 = 1 0 0 1 0 = 1 1 = = 1 1 1 0 0 1 1 1 1 1 0 0
–   Nesik 0.7.0 alpha2237+16
−16		(−83)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
+77
56.9%
2781
0.61
1581
1 1 = 1 0 1 1 1 = 1 1 1 1 0 1 1 1 1 = 1 = 0 1 1 = 1 0 0 0 1 1 0
–   NagaSkaki 5.122232+18
−18		(−88)21 − 11
(+17−7=8)
65.6%
21.0 / 32
100.0%
+24
53.4%
2223
1.14
1186
= = 1 0 = 1 = 0 1 = 1 1 = 1 1 1 0 0 1 1 1 1 1 1 0 1 0 1 = = 1 0
–   Sunsetter C10.3 64-bit JA2232+16
−16		(−88)20 − 12
(+18−10=4)
62.5%
20.0 / 32
100.0%
+10
54.3%
2648
0.68
1438
0 = = 0 1 1 1 0 = 1 1 = 1 1 0 1 0 1 0 0 0 1 0 1 1 1 1 0 1 1 1 1
–   Alarm 0.93.12226+16
−16		(−94)20.5 − 11.5
(+18−9=5)
64.1%
20.5 / 32
100.0%
+14
56.3%
2579
1.20
1452
1 = 0 1 = 1 1 1 1 1 = 1 0 1 0 1 1 0 1 0 0 1 = 0 0 = 1 0 1 1 1 1
–   Fortress 1.622216+15
−15		(−104)17 − 15
(+13−11=8)
53.1%
17.0 / 32
100.0%
−81
55.2%
2467
0.79
1363
0 = 0 = 1 1 1 1 1 = 0 0 0 0 = 1 1 1 1 1 = = 0 1 = 0 = 0 1 1 0 0
–   WJChess 1.642215+16
−16		(−105)21 − 11
(+19−9=4)
65.6%
21.0 / 32
100.0%
+19
59.0%
2614
0.70
1541
1 1 1 1 1 = 1 0 1 1 0 1 1 1 1 1 0 0 1 0 1 0 1 = 0 0 = 0 1 1 1 =
–   Gk 0.90 64-bit JA2194+16
−16		(−126)22.5 − 9.5
(+21−8=3)
70.3%
22.5 / 32
100.0%
+41
54.5%
2821
0.61
1538
= 0 1 0 = 0 1 1 1 1 0 1 0 1 1 1 1 1 1 = 1 1 1 1 1 1 1 1 0 0 0 1
–   Alf 1.09 JA2193+17
−17		(−127)17 − 15
(+14−12=6)
53.1%
17.0 / 32
100.0%
−102
51.8%
2849
0.77
1476
0 1 0 1 = 1 1 = 0 1 = = 0 0 1 1 0 1 1 0 0 1 0 0 1 0 = 1 = 1 1 0
–   Clarabit 1.00 64-bit2193+18
−18		(−127)22 − 10
(+20−8=4)
68.8%
22.0 / 32
100.0%
+21
54.3%
2984
0.72
1619
1 1 1 1 0 1 0 = = 1 0 1 1 1 = 0 1 = 1 0 1 0 1 1 1 1 0 1 1 1 0 1
–   Ghost 0.142189+17
−17		(−131)20 − 12
(+17−9=6)
62.5%
20.0 / 32
100.0%
−35
50.4%
2967
1.19
1494
1 = 1 1 1 = 1 = = 0 1 1 1 1 1 1 0 1 0 0 1 = 0 = 0 1 0 1 0 1 1 0
–   Wing 2.0a2179+16
−16		(−141)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
−7
51.6%
2360
0.74
1217
= 1 1 = 0 1 0 1 1 0 1 0 = 1 0 0 1 = 1 1 1 = 1 0 0 1 1 1 1 1 1 1
–   Uragano 3D 0.872174+16
−16		(−146)26.5 − 5.5
(+24−3=5)
82.8%
26.5 / 32
100.0%
+121
57.7%
2408
0.71
1390
1 1 1 1 1 1 0 = 1 1 0 1 = = 1 1 1 1 1 0 = 1 = 1 1 1 1 1 1 1 1 1
–   Ax 0.82119+15
−15		(−201)27 − 5
(+25−3=4)
84.4%
27.0 / 32
100.0%
+91
  
1 1 1 1 1 1 1 1 1 = 1 0 1 1 = 1 1 0 1 1 1 1 1 1 1 = 1 1 1 = 1 0
1536 games in total: 603 wins, 606 losses, 327 draws (21.3%), score: 49.9%
Average opponent: −1.5 (2318.5), average distance to opponent: 83.5

Performance

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

Perf = C − 0.034 [±0.202] * 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