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
Nejmet 3.07 UCI#57–58  (2521+16
−16		)Quote
Author: Jean-Christophe Gabillard (France) Released: 2003-06-25Links: Arena, WBEC
This engine is stable and runs without issues.
This is the only Nejmet version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Fritz 5.322643+17
−17		(+122)9.5 − 17.5
(+6−14=7)
35.2%
9.5 / 27
0.0%
+14
59.9%
1749
0.68
1047
0 0 0 = 1 0 0 = = = = 0 0 0 1 0 1 0 1 0 0 0 = 1 1 = 0
–   Ktulu 4.22634+17
−17		(+113)11 − 17
(+7−13=8)
39.3%
11.0 / 28
0.0%
+35
62.6%
1956
0.65
1224
1 0 = = = 0 0 1 0 0 = 0 = = 0 = 0 1 1 0 0 = 0 1 0 1 0 1
–   Thinker 4.7a2634+17
−17		(+113)5.5 − 18.5
(+1−14=9)
22.9%
5.5 / 24
0.0%
−62
57.6%
1554
0.46
895
= = 0 0 0 0 = 0 0 0 0 = 0 = 0 = 0 1 0 0 0 = = =
–   SmarThink 0.17a2633+16
−16		(+112)7.5 − 16.5
(+4−13=7)
31.3%
7.5 / 24
0.0%
−19
57.4%
1699
0.62
975
0 = 0 0 1 1 0 0 0 = = 0 = 0 = 0 = 1 1 0 0 = 0 0
–   Ufim 8.022628+18
−18		(+107)8 − 16
(+4−12=8)
33.3%
8.0 / 24
0.0%
−1
57.2%
1305
0.79
746
0 0 1 0 1 0 = 0 = = 1 = 0 0 1 0 0 = 0 = = 0 = 0
–   Fritz 6 Light2627+19
−19		(+106)11.5 − 12.5
(+6−7=11)
47.9%
11.5 / 24
0.0%
+92
56.1%
948
0.53
532
= = = 1 0 1 0 = 1 = = 1 0 = 0 1 = = 0 0 = 0 = 1
–   Trace 1.37a2622+17
−17		(+101)8.5 − 17.5
(+4−13=9)
32.7%
8.5 / 26
0.0%
−12
56.8%
1632
0.75
927
0 1 0 0 = = 0 0 1 1 = 0 = = 0 0 = 0 0 0 1 = 0 = 0 =
–   AnMon 5.602621+18
−18		(+100)5.5 − 13.5
(+2−10=7)		28.9%
5.5 / 19
0.0%
−3954.1%
981
0.65
531
0 = = = 0 0 0 0 0 = 1 = 0 0 0 = 1 0 =
–   E.T. Chess 18.11.052620+21
−21		(+99)13 − 13
(+11−11=4)
50.0%
13.0 / 26
0.0%
+99
55.2%
2293
0.68
1265
= 0 1 1 1 0 = 1 0 0 = 1 1 1 = 0 0 0 0 1 0 1 0 1 1 0
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17		(+93)10.5 − 15.5
(+9−14=3)
40.4%
10.5 / 26
0.0%
+14
50.7%
2746
1.00
1392
0 = = = 0 1 0 1 0 0 1 0 1 0 1 0 0 0 0 0 0 1 1 1 1 0
–   Yace 0.99.872609+17
−17		(+88)8 − 20
(+6−18=4)
28.6%
8.0 / 28
0.0%
−78
58.2%
2368
0.55
1379
1 = 1 1 0 0 0 0 0 0 1 0 1 0 = = 0 0 0 0 0 0 1 = 0 0 0 0
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19		(+86)10 − 15
(+8−13=4)
40.0%
10.0 / 25
0.0%
+8
51.9%
2026
1.09
1052
0 1 = 0 0 0 1 0 1 0 0 0 1 = 1 0 0 0 = 1 0 0 = 1 1
–   Hamsters 0.52595+21
−21		(+74)7 − 19
(+3−15=8)
26.9%
7.0 / 26
0.0%
−85
53.3%
2187
0.71
1165
0 0 = 0 = 0 = 0 1 0 1 0 0 1 0 = 0 0 0 = = 0 = 0 = 0
–   Pepito 1.59 32-bit2595+19
−19		(+74)8.5 − 18.5
(+3−13=11)
31.5%
8.5 / 27
0.0%
−45
54.8%
1838
0.63
1008
0 = 0 = 0 0 1 0 = = 0 = 0 0 0 0 = 0 = 0 = = 0 1 = = 1
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18		(+63)12.5 − 12.5
(+8−8=9)
50.0%
12.5 / 25
0.0%
+61
57.0%
1299
0.81
740
= = = = 0 = 0 0 1 1 = 0 0 1 1 0 = 1 1 = 0 0 = 1 1
–   Green Light Chess 3.002582+17
−17		(+61)11 − 16
(+8−13=6)
40.7%
11.0 / 27
0.0%
−5
57.7%
2309
0.55
1333
= 1 1 0 = 1 0 1 0 0 1 0 0 1 0 0 0 0 0 0 1 = 1 0 = = =
–   Tao 5.62574+17
−17		(+53)11 − 17
(+6−12=10)
39.3%
11.0 / 28
0.0%
−19
58.3%
1653
0.69
964
= 0 = = = 1 0 0 = 0 0 = = 1 = 1 0 = 0 1 0 = 0 0 1 0 1 0
–   Cerebro 3.03d2572+19
−19		(+51)9.5 − 22.5
(+5−18=9)
29.7%
9.5 / 32
0.0%
−91
50.3%
2031
0.92
1021
0 = = 1 0 0 0 1 0 = 1 0 1 0 0 0 = 0 = = 0 0 1 0 = 0 = 0 0 0 = 0
–   Twisted Logic 20080404x2568+18
−18		(+47)14 − 10
(+12−8=4)
58.3%
14.0 / 24
0.0%
+107
53.0%
2052
0.68
1087
1 1 0 1 = 0 0 1 0 = 0 1 = 1 1 = 1 0 1 0 1 0 1 1
–   Arasan 10.0 64-bit2564+17
−17		(+43)11 − 17
(+5−11=12)
39.3%
11.0 / 28
0.0%
−22
57.3%
1556
0.72
891
= 0 1 0 1 1 0 1 = 0 = = 0 = 0 = = 0 0 0 = = = = 0 0 = 1
–   Abrok 5.02561+17
−17		(+40)8.5 − 15.5
(+5−12=7)
35.4%
8.5 / 24
0.0%
−60
57.0%
1611
0.72
918
1 0 1 = 0 = 0 1 0 = = 0 0 0 0 0 = 1 0 = 1 = 0 0
–   Amyan 1.5972552+17
−17		(+31)9 − 14
(+6−11=6)
39.1%
9.0 / 23
0.2%
−39
54.4%
1568
0.63
853
0 0 = = 1 0 0 0 0 = 1 0 1 1 = = 0 = 0 1 0 0 1
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18		(+30)11 − 11
(+8−8=6)
50.0%
11.0 / 22
0.5%
+29
59.7%
1358
0.69
811
1 1 0 1 1 1 1 0 = 0 0 0 0 0 = 0 = 1 = = = 1
–   SpiderChess 0706032546+17
−17		(+25)16 − 13
(+10−7=12)
55.2%
16.0 / 29
1.1%
+56
54.7%
1626
0.65
890
= 0 1 = 1 0 1 = 0 0 1 0 = = 1 = = 1 0 1 = 1 = = = 0 1 = 1
–   Quark 2.352536+16
−16		(+15)14.5 − 12.5
(+12−10=5)
53.7%
14.5 / 27
8.8%
+41
54.4%
2211
0.64
1203
0 1 0 1 = 0 1 = 1 1 = 0 1 1 1 0 1 0 0 1 0 1 0 = 1 0 =
–   Gaia 3.5 64-bit2536+17
−17		(+15)18 − 14
(+15−11=6)
56.3%
18.0 / 32
8.9%
+62
57.5%
2488
0.82
1431
1 1 1 1 = 0 0 1 = 0 1 0 = 1 0 0 0 1 1 1 1 0 1 = = 1 0 0 1 1 0 =
–   King of Kings 2.562536+18
−18		(+15)9.5 − 17.5
(+8−16=3)
35.2%
9.5 / 27
9.3%
−106
53.9%
2301
0.77
1240
0 0 0 0 0 0 0 1 0 0 0 0 = 1 1 0 0 1 = 1 1 = 0 0 0 1 1
–   LambChop 10.992531+17
−17		(+10)9 − 18
(+5−14=8)
33.3%
9.0 / 27
19.5%
−101
56.0%
1926
0.58
1078
= 0 0 1 = 0 0 0 1 0 0 0 1 1 = = = 0 0 0 = = 0 0 0 = 1
–   Dragon 4.62524+16
−16		(+3)12 − 13
(+7−8=10)
48.0%
12.0 / 25
39.0%
−7
60.8%
1364
0.55
829
1 = = 0 0 = 0 0 1 1 1 0 1 = = = = = 0 = 0 1 1 0 =
–   Snitch 1.6.2 32-bit2521+15
−15		(0)12.5 − 15.5
(+11−14=3)
44.6%
12.5 / 28
51.7%
−43
55.5%
2296
0.83
1275
0 0 0 0 0 0 1 1 1 0 1 1 1 = 0 1 0 = 0 1 1 0 0 1 0 1 = 0
–   RomiChess P3k 64-bit2502+18
−18		(−19)18.5 − 13.5
(+13−8=11)
57.8%
18.5 / 32
94.9%
+33
61.6%
2079
0.51
1281
= = 1 = 1 1 0 = = = 1 0 1 0 0 1 0 = 1 0 0 1 1 1 0 = 1 1 = = = 1
–   Amy 0.8.7b DC2500+17
−17		(−21)9.5 − 14.5
(+6−11=7)
39.6%
9.5 / 24
97.3%
−94
57.1%
1869
0.77
1068
= = = 1 0 = 0 1 0 0 = 0 0 0 0 = 1 0 0 0 = 1 1 1
–   KnightDreamer 3.32499+16
−16		(−22)13.5 − 12.5
(+9−8=9)
51.9%
13.5 / 26
98.0%
−7
53.6%
1579
0.66
847
0 1 0 1 = 0 = = 1 = 0 0 1 = 1 1 1 = 1 = 0 0 = 0 1 =
–   Francesca MAD 0.13 Nobook2493+19
−19		(−28)14 − 7
(+11−4=6)
66.7%
14.0 / 21
99.1%
+87
58.7%
1291
0.72
758
1 1 0 1 0 = 1 1 1 = 0 = 1 1 = 1 0 = 1 1 =
–   Leila 0.53h2490+17
−17		(−31)17 − 5
(+14−2=6)
77.3%
17.0 / 22
99.7%
+164
53.4%
1613
0.77
862
1 = 1 1 = = 0 1 1 = 1 1 0 1 1 1 = 1 1 = 1 1
–   Diablo 0.5.1 JA2482+16
−16		(−39)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
100.0%
−7
60.7%
2125
0.61
1289
1 1 = 1 0 1 = = = 0 1 0 1 = 1 1 0 1 = 1 0 = 0 0 1 0 1 1 = = 0 0
–   PostModernist 10162480+16
−16		(−41)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
100.0%
−31
60.2%
2199
0.60
1324
1 0 = 1 0 0 0 = = = 1 1 1 0 1 = 0 1 0 1 = 0 1 1 = = 0 = 0 1 = =
–   Djinn 0.925x2479+16
−16		(−42)12.5 − 10.5
(+8−6=9)
54.3%
12.5 / 23
100.0%
−13
52.2%
1543
0.63
806
= 0 1 = 0 = 1 = 1 1 0 = 0 1 = 1 0 1 = = = 1 0
–   Comet B682478+14
−14		(−43)14 − 10
(+12−8=4)
58.3%
14.0 / 24
100.0%
+20
58.6%
1775
0.66
1041
0 1 0 1 1 1 1 1 1 0 0 0 0 = = 1 0 1 0 = = 1 1 1
–   Sjeng 12.132475+14
−14		(−46)17 − 8
(+16−7=2)
68.0%
17.0 / 25
100.0%
+104
57.7%
2124
0.74
1225
1 1 0 1 1 0 1 1 1 0 1 1 1 0 0 0 0 1 1 = 1 = 1 1 1
–   Muse 0.899b2474+16
−16		(−47)16 − 11
(+14−9=4)
59.3%
16.0 / 27
100.0%
+24
53.4%
2123
0.70
1133
= 0 0 1 1 1 1 0 0 0 0 1 1 = 0 1 = = 1 1 0 1 1 1 0 1 1
–   Queen 4.032466+17
−17		(−55)20 − 12
(+14−6=12)
62.5%
20.0 / 32
100.0%
+25
58.3%
2048
0.63
1194
1 1 = 0 1 1 1 = = 1 1 = = 1 1 0 1 0 = = = = 0 = 1 0 1 = 1 1 = 0
–   The Crazy Bishop 00522460+15
−15		(−61)12 − 10
(+8−6=8)
54.5%
12.0 / 22
100.0%
−34
57.8%
1520
0.54
879
= 0 = 0 = = = 1 1 0 1 = 1 1 1 = 0 = 1 0 0 1
–   Patzer 3.802460+16
−16		(−61)14 − 18
(+10−14=8)
43.8%
14.0 / 32
100.0%
−106
53.4%
2292
0.98
1225
= = 0 0 1 1 = 1 1 0 0 = 1 0 0 1 0 1 = = 1 = 1 = 0 0 0 0 1 0 0 0
–   Der Bringer 1.92455+15
−15		(−66)14.5 − 12.5
(+8−6=13)
53.7%
14.5 / 27
100.0%
−42
55.1%
1591
0.62
876
1 = = 0 0 1 = = = 1 0 0 = = 1 1 1 = = = 0 1 = = = 0 1
–   Gosu 0.162455+16
−16		(−66)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
100.0%
−53
54.7%
2485
0.98
1359
1 0 1 = = = 1 = = 1 1 0 0 0 1 1 1 = 0 0 = 0 0 = 1 1 0 1 0 = 0 1
–   Phalanx XXII Reborn JA2452+15
−15		(−69)20 − 7
(+18−5=4)
74.1%
20.0 / 27
100.0%
+121
52.5%
2022
0.75
1061
= 0 1 1 0 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 = 1 1 0 1 = =
–   Homer 2.012452+17
−17		(−69)20 − 12
(+15−7=10)
62.5%
20.0 / 32
100.0%
+16
50.7%
1937
0.69
983
= = 1 1 1 = 0 1 1 0 = 0 = 1 1 = 0 = 1 1 1 0 = 1 1 1 1 0 0 = 1 =
–   Betsy 6.51 Nobook2450+15
−15		(−71)15 − 12
(+11−8=8)
55.6%
15.0 / 27
100.0%
−36
55.8%
2112
0.69
1179
0 = = 0 1 = 0 = 1 0 1 1 0 1 = 1 0 = 1 1 0 1 0 1 = 1 =
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(−73)21 − 11
(+17−7=8)
65.6%
21.0 / 32
100.0%
+37
51.9%
2281
0.78
1183
1 0 1 = 0 0 0 1 1 0 = 1 0 0 = 1 1 = = 1 1 1 1 = 1 = 1 = 1 1 1 1
–   Amateur 2.822446+15
−15		(−75)18 − 10
(+14−6=8)
64.3%
18.0 / 28
100.0%
+22
55.0%
1661
0.77
914
= 1 1 1 1 0 0 = = 0 1 = = 1 1 1 0 1 1 = = 1 1 0 1 1 = 0
–   Thor's Hammer 2.28 32-bit2417+15
−15		(−104)22.5 − 7.5
(+21−6=3)
75.0%
22.5 / 30
100.0%
+102
57.8%
2349
0.82
1357
1 1 1 0 = 1 1 0 0 1 1 1 0 1 1 = 1 0 1 1 0 = 1 1 1 1 1 1 1 1
–   Arion 1.72415+16
−16		(−106)18.5 − 5.5
(+14−1=9)
77.1%
18.5 / 24
100.0%
+72
62.0%
1378
0.79
854
1 1 = 1 = = 1 1 = = = 1 1 = 1 1 1 = 1 0 1 1 1 =
–   Chezzz 1.0.32409+15
−15		(−112)15.5 − 9.5
(+12−6=7)
62.0%
15.5 / 25
100.0%
−31
52.8%
1887
0.73
996
= 1 1 = 0 1 0 1 = 1 0 1 0 1 1 1 = 1 = = 0 0 1 1 =
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(−119)9.5 − 5.5
(+8−4=3)		63.3%
9.5 / 15
100.0%
−20
57.4%
1221
0.60
701
1 0 1 0 = 0 = 1 1 1 0 1 = 1 1
–   Averno 0.812396+15
−15		(−125)13.5 − 7.5
(+9−3=9)
64.3%
13.5 / 21
100.0%
−37
50.3%
1387
0.55
697
0 1 = 1 1 = = = 1 = = 0 = = 1 1 1 = 1 0 1
–   Scidlet 3.61 64-bit JA2390+15
−15		(−131)18 − 6
(+15−3=6)
75.0%
18.0 / 24
100.0%
+48
59.3%
1873
0.75
1110
1 1 = 1 1 = 0 0 1 1 1 1 1 1 1 1 = 1 0 1 = = 1 =
–   Eeyore 1.482384+15
−15		(−137)16.5 − 6.5
(+14−4=5)
71.7%
16.5 / 23
100.0%
+23
53.8%
1713
0.96
922
= 0 = 1 1 1 1 1 1 = 0 1 0 1 1 = 1 = 1 1 1 0 1
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(−166)17 − 9
(+13−5=8)
65.4%
17.0 / 26
100.0%
−63
56.1%
1778
0.75
997
0 0 1 = = 1 0 = = = 1 1 1 1 0 0 1 = 1 1 = 1 = 1 1 1
1549 games in total: 565 wins, 552 losses, 432 draws (27.9%), score: 50.4%
Average opponent: −2.8 (2518.2), average distance to opponent: 65.3

Performance

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

Perf = C − 0.055 [±0.206] * 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