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

Options
Show each game results
Etude 0.1.2 UCI#141  (2063+19
−19		)Quote
Author: Jacob Hales (USA) Released: 2007-10-15Link: RWBC
Issues with this engine: Occasional losses on time.
This is the only Etude version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Wing 2.0a2179+16
−16		(+116)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−51
52.2%
2607
0.98
1361
0 0 0 = 0 = 1 0 1 1 0 0 0 0 0 0 0 1 0 0 = 0 0 = 0 1 0 = 0 0 1 =
–   Uragano 3D 0.872174+16
−16		(+111)12.5 − 19.5
(+10−17=5)
39.1%
12.5 / 32
0.0%
+27
53.3%
2199
0.74
1171
0 1 0 0 0 1 1 1 0 1 1 = 1 0 0 0 0 0 = 0 1 0 0 = 0 0 0 = = 1 1 0
–   Parrot 0707222161+17
−17		(+98)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
+16
49.5%
2067
1.04
1023
= = 0 0 1 0 0 1 0 0 = 1 0 0 0 1 0 0 = 1 0 = 0 0 = 1 = 1 1 1 0 0
–   Matheus 2.32144+15
−15		(+81)15 − 17
(+10−12=10)
46.9%
15.0 / 32
0.0%
+58
51.9%
2033
0.68
1056
= 1 0 0 0 1 0 = 1 1 1 0 = = 1 1 0 = = 1 0 0 = 1 1 0 = 0 = 0 0 =
–   Bodo 0.2b2137+15
−15		(+74)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
0.0%
+85
51.1%
1711
0.57
874
1 1 = 0 1 1 1 0 = = 0 = = 0 = = 0 0 0 = 1 1 = 1 0 1 0 0 1 0 1 1
–   Monarch 1.72131+16
−16		(+68)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
0.0%
+37
53.0%
2030
1.20
1076
0 0 0 = 1 1 = 0 = = = = = 0 1 0 0 1 = 1 1 0 0 1 0 0 = 0 1 1 0 1
–   Bestia 0.902122+15
−15		(+59)9.5 − 22.5
(+6−19=7)
29.7%
9.5 / 32
0.0%
−90
50.2%
2862
0.84
1437
0 0 0 = 0 = 1 0 1 = 0 1 0 0 = 0 = 0 = 0 0 1 0 1 = 0 1 0 0 0 0 0
–   Ax 0.82119+15
−15		(+56)14 − 18
(+11−15=6)
43.8%
14.0 / 32
0.0%
+10
  
1 0 0 1 1 0 0 0 1 1 1 = 1 0 1 1 0 = 0 0 0 = 1 = = 0 = 0 1 0 0 0
–   Gerbil 02 64-bit JA2118+18
−18		(+55)14.5 − 17.5
(+12−15=5)
45.3%
14.5 / 32
0.0%
+17
53.9%
2472
0.58
1332
1 1 0 0 1 1 0 0 1 = 1 1 0 0 1 0 0 0 0 1 1 0 1 0 0 = 1 0 = = 0 =
–   BigLion 2.23x2117+17
−17		(+54)12.5 − 19.5
(+8−15=9)
39.1%
12.5 / 32
0.0%
−22
53.9%
2207
0.56
1190
0 0 0 = = = 0 0 0 1 = 0 1 = 0 0 0 1 = = 1 0 0 = 0 1 0 1 0 1 1 =
–   RDChess 3.232117+16
−16		(+54)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
−2
57.4%
2200
1.22
1263
1 0 = = 0 1 1 1 = = 1 0 0 = 0 1 0 0 0 1 1 0 0 0 = 1 0 1 0 = 0 0
–   DelphiMax 2.92102+16
−16		(+39)12.5 − 19.5
(+10−17=5)
39.1%
12.5 / 32
0.0%
−44
56.5%
2222
0.75
1256
0 0 = 1 0 1 1 0 0 0 0 = 0 0 0 = 0 1 = = 0 1 1 1 0 0 1 1 0 1 0 0
–   Armageddon 2.3082098+17
−17		(+35)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.2%
+12
51.4%
2070
0.85
1064
1 = 1 = 1 = = 0 0 0 0 1 0 0 0 0 0 1 0 0 = 0 1 1 1 1 = 1 = 0 1 =
–   Requiem 0.532084+15
−15		(+21)17 − 15
(+11−9=12)
53.1%
17.0 / 32
3.5%
+41
55.4%
1470
0.63
814
= 0 = = 1 0 1 = 0 0 1 = 1 = 1 1 = 0 1 = 1 0 0 0 0 = = 1 1 = = 1
–   Small Potato 0.6.12082+16
−16		(+19)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
4.9%
+76
51.1%
2339
0.57
1196
= = = 1 0 1 1 1 0 0 1 0 1 = 0 1 = 1 1 0 1 0 0 = 1 1 0 1 = 0 1 1
–   Elephant 1.062075+16
−16		(+12)11.5 − 20.5
(+10−19=3)
35.9%
11.5 / 32
15.3%
−101
54.2%
2153
0.69
1166
0 1 0 0 0 0 1 0 0 1 0 = 0 0 0 0 0 = 1 0 1 1 0 1 = 0 1 0 0 1 1 0
–   La Dame Blanche 2.0c2070+19
−19		(+7)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
29.5%
+16
54.0%
1840
1.14
994
1 = 1 0 1 1 0 1 = 0 1 0 1 1 0 0 0 = 1 0 1 1 1 0 0 1 = = 0 = 0 =
–   Cilian 4.142069+16
−16		(+6)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
30.5%
+64
  
1 1 = 1 = 1 0 0 0 = 1 0 = 0 1 0 0 0 1 1 0 1 1 = 1 1 = 1 = 0 1 1
–   Gullydeckel 2.16pl12062+19
−19		(−1)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
54.4%
+33
54.1%
2283
0.65
1236
0 1 0 0 = = = 1 0 1 = 1 1 1 1 0 1 = 0 = 1 0 0 1 = 0 1 1 0 0 1 1
–   JanWillem 1.132062+16
−16		(−1)15 − 17
(+12−14=6)
46.9%
15.0 / 32
54.5%
−26
52.5%
2354
0.72
1236
1 = = 0 = 0 0 0 = 0 0 0 1 0 1 1 1 1 1 1 = 0 0 0 1 0 1 1 = 1 0 0
–   Marvin 1.3.02054+16
−16		(−9)19 − 13
(+17−11=4)
59.4%
19.0 / 32
79.5%
+63
55.9%
2922
0.64
1633
0 1 1 = = 1 0 1 1 0 1 0 1 1 1 0 0 1 0 1 1 0 1 = 0 = 1 0 0 1 1 1
–   Matant 5.042053+17
−17		(−10)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
80.5%
−20
52.8%
1849
0.89
976
0 1 = = 1 = = 1 = 0 1 1 0 0 0 1 1 0 0 = 1 0 1 0 0 0 1 1 1 0 0 =
–   SSEChessII 2.05 DC2049+17
−17		(−14)13 − 19
(+10−16=6)
40.6%
13.0 / 32
89.2%
−85
51.4%
3007
0.79
1546
1 0 = 1 = 0 0 0 1 0 0 = 1 0 1 1 = 1 1 0 0 0 1 0 = 0 0 0 0 1 = 0
–   Faile 1.4.42042+15
−15		(−21)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
97.0%
+12
55.9%
2554
0.59
1428
0 0 1 0 0 0 0 1 0 = 1 1 1 1 1 1 = 1 0 = = 0 1 = 0 0 = 1 1 = 1 1
–   Smash 1.0.32036+17
−17		(−27)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
98.9%
−37
55.0%
2628
0.67
1445
= 1 1 1 0 0 1 0 1 1 1 0 0 = 0 = 1 1 0 = 0 0 1 = 0 0 = 1 = 0 1 0
–   Micro-Max 4.8 PIV DM2028+17
−17		(−35)14.5 − 17.5
(+9−12=11)
45.3%
14.5 / 32
99.9%
−68
75.6%
2393
0.84
1809
= 0 0 0 = 1 = = 1 0 0 1 = = = 0 = 0 1 1 0 1 = 1 0 0 1 1 = 0 0 =
–   Sharper 0.172022+16
−16		(−41)21 − 11
(+17−7=8)
65.6%
21.0 / 32
100.0%
+68
49.4%
2327
0.77
1149
0 1 = 1 1 = 1 1 1 = 0 1 0 1 0 = 0 0 1 1 = 1 = 1 0 1 1 = 1 = 1 1
–   Mustang 4.972021+17
−17		(−42)13 − 19
(+9−15=8)
40.6%
13.0 / 32
100.0%
−107
53.0%
1697
0.54
900
0 = 1 = 0 0 0 1 0 = 0 = 0 = 0 1 = 1 1 0 1 0 0 1 = 0 1 0 = 0 1 0
–   Rival UCI 1.182021+17
−17		(−42)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
100.0%
+11
52.6%
1979
0.77
1040
0 = = 0 1 1 1 0 1 1 1 1 = = 1 1 1 0 0 1 = 0 = 0 1 = 0 = = 0 1 1
–   BibiChess 0.52007+16
−16		(−56)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
100.0%
−24
  
= = 0 1 0 1 1 0 = = = 1 1 1 = 1 1 = 0 0 0 1 1 0 0 = 0 0 1 1 = 1
–   IACH 0.56z1995+18
−18		(−68)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
−2
63.6%
2734
1.08
1738
1 1 1 1 0 1 0 0 = = 1 0 0 1 = 1 0 = = 1 1 1 = 1 1 0 0 1 1 = = 0
–   Heracles 0.6.161993+19
−19		(−70)19 − 13
(+16−10=6)
59.4%
19.0 / 32
100.0%
0
54.2%
3006
0.82
1629
0 0 = 0 0 1 1 1 1 = 1 0 0 = 0 1 = 1 1 1 1 1 0 1 = 0 0 1 1 1 = 1
–   Clueless 1.41990+18
−18		(−73)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
100.0%
−16
54.5%
1742
0.86
950
= 1 = 1 1 1 = = 1 1 1 0 0 0 0 0 0 0 1 0 1 1 1 0 1 0 1 = 1 = 1 =
–   Warrior 1.0.31987+17
−17		(−76)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
+82
55.4%
2721
0.62
1508
1 1 0 1 0 1 = 1 1 1 1 1 = = 0 1 0 1 1 1 = 0 1 0 1 1 1 1 1 0 = 1
–   Morphy 3.221974+17
−17		(−89)18.5 − 13.5
(+12−7=13)
57.8%
18.5 / 32
100.0%
−40
53.1%
1719
3.49
913
1 0 = 0 0 1 1 = = 1 1 = = 0 0 = 1 1 0 1 1 1 1 1 = = 0 = = = = =
–   Eagle 0.7.51973+20
−20		(−90)18.5 − 13.5
(+16−11=5)
57.8%
18.5 / 32
100.0%
−31
46.2%
2603
0.82
1202
= 1 1 = 0 = = 1 0 1 0 0 1 1 1 0 1 0 1 1 1 0 1 1 1 0 = 0 0 0 1 1
–   SnailChess 4.0131973+19
−19		(−90)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
+42
77.9%
2144
2.17
1671
1 = 1 0 1 1 0 1 0 1 1 = = 1 = 1 0 0 1 1 1 1 1 1 = 1 1 0 0 0 1 1
1184 games in total: 455 wins, 462 losses, 267 draws (22.6%), score: 49.7%
Average opponent: +3.0 (2066), average distance to opponent: 49.2

Performance

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

Perf = C + 0.091 [±0.287] * 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