KCEC
(Kirr's Chess Engine Comparison)
A tournament of original free chess engines
August 14, 2010
Testing summary:
Total: 89,765 games
played by 153 programs
937 CPU days (X2 4600+)

White wins: 36,316 (40.5%)
Black wins: 30,946 (34.5%)
Draws: 22,503 (25.1%)
White score: 53.0%

Engine Details

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Anechka 0.08 UCI#91  (2314+17
−17		)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 3.802458+17
−17		(+144)16 − 16
(+13−13=6)
50.0%
16.0 / 32
0.0%
+145
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 0.162449+17
−17		(+135)8.5 − 23.5
(+5−20=7)
26.6%
8.5 / 32
0.0%
−41
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 JA2448+15
−15		(+134)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−36
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
–   Amateur 2.822446+16
−16		(+132)14 − 18
(+10−14=8)
43.8%
14.0 / 32
0.0%
+84
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 =
–   Betsy 6.51 Nobook2444+16
−16		(+130)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−38
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 JA2441+17
−17		(+127)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
+47
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
–   Thor's Hammer 2.28 32-bit2417+16
−16		(+103)7 − 25
(+6−24=2)
21.9%
7.0 / 32
0.0%
−144
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 1.72411+17
−17		(+97)9.5 − 22.5
(+4−17=11)
29.7%
9.5 / 32
0.0%
−41
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 0.99.22407+17
−17		(+93)11.5 − 20.5
(+6−15=11)
35.9%
11.5 / 32
0.0%
−2
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 1.0.32405+16
−16		(+91)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 =
–   Resp 0.19 64-bit JA Nobook2398+18
−18		(+84)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
0.0%
+73
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 0.812389+16
−15		(+75)12 − 20
(+6−14=12)
37.5%
12.0 / 32
0.0%
−7
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 JA2384+16
−16		(+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 1.922379+16
−16		(+65)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−104
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 1.482375+16
−16		(+61)8.5 − 23.5
(+4−19=9)
26.6%
8.5 / 32
0.0%
−106
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 0.2.9942363+17
−17		(+49)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−40
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 =
–   EXchess 5.01 beta 64-bit JA2352+15
−15		(+38)15.5 − 16.5
(+9−10=13)
48.4%
15.5 / 32
0.0%
+28
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
–   Natwarlal 0.142350+18
−18		(+36)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.2%
−85
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
–   Esc 1.162338+16
−16		(+24)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
2.0%
−30
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 =
–   Zeus 1.292337+18
−18		(+23)16 − 16
(+11−11=10)
50.0%
16.0 / 32
2.8%
+25
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
–   ANT 2006-F2325+18
−17		(+11)16.5 − 15.5
(+14−13=5)
51.6%
16.5 / 32
16.6%
+23
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 3.482295+16
−16		(−19)17.5 − 14.5
(+15−12=5)
54.7%
17.5 / 32
94.6%
+15
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 32MB2292+16
−16		(−22)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
96.5%
−8
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) 1.52281+17
−17		(−33)19.5 − 12.5
(+13−6=13)
60.9%
19.5 / 32
99.7%
+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 0.22277+16
−16		(−37)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
99.9%
+41
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 4.0.32266+15
−15		(−48)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 =
–   Atlas 2.202255+18
−17		(−59)13.5 − 18.5
(+11−16=5)
42.2%
13.5 / 32
100.0%
−121
  
= 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 2.02237+17
−17		(−77)20.5 − 11.5
(+19−10=3)
64.1%
20.5 / 32
100.0%
+40
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
–   InmiChess 3.06N2228+15
−16		(−86)20.5 − 11.5
(+18−9=5)
64.1%
20.5 / 32
100.0%
+25
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 alpha2227+16
−16		(−87)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
+76
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
–   Sunsetter C10.3 64-bit JA2221+17
−17		(−93)20 − 12
(+18−10=4)
62.5%
20.0 / 32
100.0%
+8
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 0.93.12213+17
−17		(−101)20.5 − 11.5
(+18−9=5)
64.1%
20.5 / 32
100.0%
+10
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
–   WJChess 1.642213+16
−16		(−101)21 − 11
(+19−9=4)
65.6%
21.0 / 32
100.0%
+26
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 =
–   Fortress 1.622201+16
−16		(−113)17 − 15
(+13−11=8)
53.1%
17.0 / 32
100.0%
−90
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
–   Gk 0.90 64-bit JA2179+17
−17		(−135)22.5 − 9.5
(+21−8=3)
70.3%
22.5 / 32
100.0%
+36
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
–   Ghost 0.142175+18
−18		(−139)20 − 12
(+17−9=6)
62.5%
20.0 / 32
100.0%
−40
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 2.0a2165+17
−17		(−149)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
−12
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 0.872159+17
−17		(−155)26.5 − 5.5
(+24−3=5)
82.8%
26.5 / 32
100.0%
+116
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 0.82108+16
−16		(−206)27 − 5
(+25−3=4)
84.4%
27.0 / 32
100.0%
+89
  
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
1248 games in total: 479 wins, 495 losses, 274 draws (22.0%), score: 49.4%
Average opponent: +1.6 (2315.6), average distance to opponent: 86.7

Performance

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

Perf = C − 0.098 [±0.209] * 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 2005-2010 by Kirill Kryukov
Last games added on August 14, 2010