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
RomiChess P3k 64-bit WB#59  (2502+18
−18
)Quote
Author: Michael Sherwin (USA) Released: 2008-01-30Link: WBEC
Issues with this engine: Occasional losses on time.
This is the only RomiChess version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18
(+82)8 − 24
(+5−21=6)
25.0%
8.0 / 32
0.0%
−110
61.7%
2543
0.60
1568
0 0 = 0 0 0 = 0 0 0 = 0 0 = 0 = 0 1 0 1 0 0 0 0 0 1 1 = 0 0 0 1
–   Green Light Chess 3.002582+17
−17
(+80)11.5 − 20.5
(+5−14=13)
35.9%
11.5 / 32
0.0%
−9
64.6%
1711
0.58
1105
0 0 = 0 0 = 0 = = = = 1 0 1 0 1 0 1 = 0 1 0 = 0 = = = = 0 0 0 =
–   Tao 5.62574+17
−17
(+72)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
0.0%
−52
64.2%
2238
0.66
1437
1 = = = = 0 1 0 1 0 0 = 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 = 0 1 = 0
–   Cerebro 3.03d2572+19
−19
(+70)12.5 − 19.5
(+8−15=9)
39.1%
12.5 / 32
0.0%
−6
62.3%
1664
0.67
1037
1 0 1 1 1 = = 0 0 0 0 0 0 = 1 0 = 0 = 1 = 0 0 0 = = 0 0 = 1 0 1
–   Twisted Logic 20080404x2568+18
−18
(+66)14 − 18
(+8−12=12)
43.8%
14.0 / 32
0.0%
+24
61.8%
2219
0.72
1372
1 0 0 = = 0 0 = = = = = 1 0 0 0 1 1 0 = 1 0 = 0 1 0 1 1 = = 0 =
–   Arasan 10.0 64-bit2564+17
−17
(+62)11 − 21
(+7−17=8)
34.4%
11.0 / 32
0.0%
−46
64.7%
2527
0.51
1635
1 0 0 = 0 0 0 = 0 = 0 0 0 = 0 0 1 1 1 = 0 = 1 = 1 0 = 0 0 1 0 0
–   Abrok 5.02561+17
−17
(+59)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
0.0%
−37
62.9%
2110
0.76
1327
= 0 = = 0 0 = 0 0 = 1 0 0 = 1 1 = = 0 0 0 0 1 = 1 0 0 0 1 0 1 0
–   Amyan 1.5972552+17
−17
(+50)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
0.0%
+60
65.4%
1850
0.70
1209
0 = 0 1 = = 0 = 1 0 = 1 = 1 0 1 0 0 1 1 1 = 1 1 = 0 = = 1 0 = 0
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18
(+49)11.5 − 20.5
(+8−17=7)
35.9%
11.5 / 32
0.0%
−54
65.6%
2407
0.54
1578
0 = 0 0 0 = 1 1 0 = = 0 = 0 = 0 0 1 0 1 = 0 0 0 0 1 0 1 1 0 0 1
–   SpiderChess 0706032546+17
−17
(+44)13 − 19
(+9−15=8)
40.6%
13.0 / 32
0.0%
−23
61.1%
2356
0.58
1439
0 1 0 0 1 = 0 0 = = 0 1 0 1 0 0 0 0 = = 1 1 = 0 0 0 1 = 0 1 1 =
–   Quark 2.352536+16
−16
(+34)19 − 13
(+14−8=10)
59.4%
19.0 / 32
0.2%
+96
65.0%
1905
0.74
1238
1 = 1 1 = 1 1 1 0 = = = 1 0 = 0 1 0 0 = 0 = 1 0 0 1 1 1 1 = = 1
–   Gaia 3.5 64-bit2536+17
−17
(+34)20 − 12
(+17−9=6)
62.5%
20.0 / 32
0.3%
+129
62.1%
2907
0.97
1804
1 1 1 = 1 = 0 1 1 1 = = 1 0 0 0 1 = 1 1 1 = 0 0 1 1 1 1 0 1 0 0
–   King of Kings 2.562536+18
−18
(+34)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
0.3%
+43
62.5%
2200
0.67
1374
= = 1 1 0 1 0 0 = 0 = 1 0 1 0 = = 0 1 0 0 1 1 0 1 0 1 1 1 1 = 0
–   LambChop 10.992531+17
−17
(+29)15.5 − 16.5
(+13−14=5)
48.4%
15.5 / 32
0.9%
+16
64.2%
2519
0.59
1618
0 1 0 1 1 = 0 1 0 1 0 0 0 1 1 = = 1 0 0 0 1 1 1 0 0 1 0 = = 0 1
–   Dragon 4.62524+16
−16
(+22)16.5 − 15.5
(+10−9=13)
51.6%
16.5 / 32
3.2%
+30
61.3%
1820
0.73
1116
= 1 = = = = = 0 = = 1 = 1 0 = 0 = 1 0 0 = 0 1 = 1 0 0 1 1 1 1 0
–   Nejmet 3.072521+16
−16
(+19)13.5 − 18.5
(+8−13=11)
42.2%
13.5 / 32
5.1%
−33
61.6%
2079
0.51
1281
= = 0 = 0 0 1 = = = 0 1 0 1 1 0 1 = 0 1 1 0 0 0 1 = 0 0 = = = 0
–   Snitch 1.6.2 32-bit2521+15
−15
(+19)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
5.5%
+51
60.9%
2426
0.91
1478
= 1 0 1 0 0 1 = 1 0 1 1 = 1 0 0 1 1 = 0 = 0 0 1 0 1 1 0 1 = 1 =
–   Amy 0.8.7b DC2500+17
−17
(−2)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
57.3%
−57
61.5%
2727
0.81
1677
0 1 0 0 0 0 0 = 1 = 0 1 = 0 0 1 = 1 0 0 1 0 0 = 1 = 0 1 0 = 1 1
–   KnightDreamer 3.32499+16
−16
(−3)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
61.2%
+49
63.1%
2076
0.71
1309
= 0 1 1 1 1 1 1 0 1 = 0 = 0 1 1 0 = 0 1 = 1 1 1 0 = = = 0 1 0 =
–   Francesca MAD 0.13 Nobook2493+19
−19
(−9)15 − 17
(+10−12=10)
46.9%
15.0 / 32
76.5%
−28
69.5%
1605
0.61
1116
0 = 0 = 0 = 0 1 0 0 0 = 1 0 1 1 1 1 = 1 = 0 = 1 1 1 = 0 0 = = 0
–   Leila 0.53h2490+17
−17
(−12)13 − 19
(+8−14=10)
40.6%
13.0 / 32
83.1%
−75
58.0%
2459
1.06
1426
0 0 0 = = 0 0 1 1 0 0 = 0 1 0 0 = 0 = 0 0 = = = 1 1 = = 1 0 1 1
–   Diablo 0.5.1 JA2482+16
−16
(−20)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
95.4%
+33
64.8%
2494
0.83
1617
= 1 1 = 1 1 0 1 = = 1 0 1 1 0 0 0 0 = 0 0 = = 1 0 = 1 1 1 1 = 1
–   PostModernist 10162480+16
−16
(−22)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
97.1%
−12
67.5%
2120
0.77
1430
0 0 = 0 = 0 = 0 = 0 0 0 1 1 1 0 1 0 1 1 1 0 = = 1 0 1 1 1 = 1 1
–   Djinn 0.925x2479+16
−16
(−23)17 − 15
(+13−11=8)
53.1%
17.0 / 32
97.3%
0
61.6%
2372
0.78
1462
1 = 1 0 = = = 0 0 1 1 0 = 1 1 1 0 0 1 = 0 0 1 1 1 0 = 1 = 1 0 0
–   Comet B682478+14
−14
(−24)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
98.3%
−14
62.1%
2088
0.73
1296
0 = 0 1 1 1 0 = 1 0 1 1 1 = 0 0 0 0 1 0 1 1 1 = 0 1 0 1 = 0 = =
–   Sjeng 12.132475+14
−14
(−27)15.5 − 16.5
(+11−12=9)
48.4%
15.5 / 32
99.1%
−38
65.4%
2097
0.88
1372
1 0 0 0 0 1 0 = = = = 1 1 = 1 0 = 1 = 0 0 0 1 1 = = 0 1 0 0 1 1
–   Muse 0.899b2474+16
−16
(−28)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
99.1%
+29
61.2%
2494
0.70
1526
= 0 = 0 1 1 0 0 = = 1 = 1 1 1 1 1 0 0 = 1 = 1 1 1 1 0 1 0 0 0 1
–   Queen 4.032466+17
−17
(−36)16 − 16
(+9−9=14)
50.0%
16.0 / 32
99.8%
−38
65.9%
1732
0.58
1141
0 1 = 1 = 0 1 0 = 0 0 = = 1 = = = 1 = 0 0 = = 1 0 1 = 0 = = 1 1
–   The Crazy Bishop 00522460+15
−15
(−42)22.5 − 9.5
(+17−4=11)
70.3%
22.5 / 32
100.0%
+92
61.6%
2324
0.80
1431
= = = = 1 1 1 = 0 1 1 1 = 1 = 1 0 = = 1 1 1 0 0 1 = 1 = 1 1 1 1
–   Patzer 3.802460+16
−16
(−42)15 − 17
(+10−12=10)
46.9%
15.0 / 32
100.0%
−65
60.8%
1694
0.96
1030
1 = 1 = 0 1 1 1 = = 1 0 0 0 = 1 1 0 0 = 0 = 0 = = = 1 1 0 0 0 0
–   Der Bringer 1.92455+15
−15
(−47)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
100.0%
+8
62.3%
2562
0.73
1595
0 0 = 1 1 1 = 1 = 1 1 0 1 0 1 = 1 = 1 1 0 0 0 1 0 = = 1 1 0 1 0
–   Gosu 0.162455+16
−16
(−47)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
100.0%
+8
62.9%
2682
1.00
1686
1 0 1 0 1 1 = 0 = 1 1 1 0 = 1 1 1 0 = 0 0 = 0 = 1 1 0 1 1 0 = 1
–   Phalanx XXII Reborn JA2452+15
−15
(−50)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
100.0%
−14
64.0%
2123
0.70
1359
1 = 1 0 1 = 1 1 1 0 1 0 0 1 = 1 0 1 = 0 1 = 1 0 0 1 0 0 = = 1 0
–   Amateur 2.822446+15
−15
(−56)20 − 12
(+15−7=10)
62.5%
20.0 / 32
100.0%
+27
61.6%
2177
0.94
1342
= 0 1 = 0 1 0 0 1 = 1 1 1 0 0 = 1 = = = 1 = = = 1 1 1 1 1 1 0 1

Performance

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

Perf = C − 0.117 [±0.413] * 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