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
Atlas 2.20 UCI#109  (2271+17
−17		)Quote
Author: Andres Manzanares (Spain) Released: 2006-01-24Link: Homepage
Issues with this engine: Atlas does not show ponder moves.
This is the only Atlas version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Phalanx XXII Reborn JA2452+15
−15		(+181)8 − 18
(+6−16=4)
30.8%
8.0 / 26
0.0%
+29
  
1 0 1 0 0 = = 0 1 0 0 0 0 0 0 0 1 0 = = 0 0 0 0 1 1
–   Amateur 2.822446+15
−15		(+175)2 − 24
(+1−23=2)
7.7%
2.0 / 26
0.0%
−244
  
0 0 0 0 = 0 1 0 0 = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
–   Thor's Hammer 2.28 32-bit2417+15
−15		(+146)8 − 19
(+6−17=4)
29.6%
8.0 / 27
0.0%
−10
  
0 0 0 1 0 1 0 0 1 0 0 0 = 0 1 1 0 = 1 0 0 0 0 = 0 = 0
–   Arion 1.72415+16
−16		(+144)5 − 22
(+2−19=6)
18.5%
5.0 / 27
0.0%
−95
  
0 = 0 0 0 = 0 = 0 1 1 0 0 0 0 = = 0 0 0 0 0 0 0 0 = 0
–   Chezzz 1.0.32409+15
−15		(+138)11.5 − 13.5
(+10−12=3)
46.0%
11.5 / 25
0.0%
+108
  
0 0 0 = 0 1 = 0 1 1 0 1 1 = 0 0 1 1 1 1 0 0 1 0 0
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(+131)6 − 14
(+5−13=2)
30.0%
6.0 / 20
0.0%
−34
  
0 1 0 = 0 0 1 1 1 0 0 0 0 0 1 = 0 0 0 0
–   Averno 0.812396+15
−15		(+125)10 − 15
(+8−13=4)
40.0%
10.0 / 25
0.0%
+44
  
= 0 0 1 0 1 1 = 1 0 0 0 = 1 1 1 0 0 1 0 0 0 0 = 0
–   Scidlet 3.61 64-bit JA2390+15
−15		(+119)12 − 13
(+10−11=4)
48.0%
12.0 / 25
0.0%
+107
  
= 1 0 0 1 1 0 1 = 1 0 1 1 0 1 0 1 0 0 = 1 0 0 0 =
–   KnightX 1.922385+15
−15		(+114)10 − 17
(+7−14=6)
37.0%
10.0 / 27
0.0%
+19
  
0 0 1 1 1 0 = 0 0 = 0 0 0 1 0 1 = 1 0 0 = = 0 = 0 0 1
–   Eeyore 1.482384+15
−15		(+113)7 − 17
(+5−15=4)
29.2%
7.0 / 24
0.0%
−46
  
1 1 = = 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 = =
–   Ayito 0.2.9942371+16
−16		(+100)10.5 − 14.5
(+8−12=5)
42.0%
10.5 / 25
0.0%
+37
  
1 1 = 1 0 0 = 1 1 0 0 0 1 0 0 1 = 0 = 1 0 0 = 0 0
–   Matilde 2008 64-bit2368+15
−15		(+97)16.5 − 15.5
(+14−13=5)
51.6%
16.5 / 32
0.0%
+109
  
0 = 0 0 1 1 0 0 1 1 1 1 = 1 1 1 1 0 = 1 1 = 1 0 0 0 0 0 1 0 = 0
–   Natwarlal 0.142359+17
−17		(+88)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
0.0%
−37
  
0 = 0 = 0 0 1 1 0 0 1 0 1 0 = = 0 0 0 1 0 0 = = 0 0 0 1 0 0 = 1
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(+84)9.5 − 18.5
(+6−15=7)
33.9%
9.5 / 28
0.0%
−28
  
= 0 1 = 0 = 1 0 0 = 0 0 0 1 1 0 1 = 0 = 0 0 = 0 0 0 0 1
–   Zeus 1.292346+16
−16		(+75)13.5 − 18.5
(+11−16=5)
42.2%
13.5 / 32
0.0%
+16
  
= = 1 0 1 0 1 1 = 0 0 0 0 1 0 1 0 1 0 0 0 1 1 1 0 1 0 = 0 0 = 0
–   Esc 1.162345+15
−15		(+74)7 − 18
(+5−16=4)
28.0%
7.0 / 25
0.0%
−95
  
0 0 1 0 1 1 = 0 = 0 = 1 0 0 0 0 0 0 0 1 0 0 0 0 =
–   Popochin 3.22341+19
−19		(+70)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
−51
  
0 1 = = 0 0 = 0 0 0 0 = 0 0 0 0 = 0 = 1 = 1 0 1 = 0 1 0 0 = 1 0
–   ANT 2006-F2333+16
−16		(+62)11.5 − 16.5
(+8−13=7)
41.1%
11.5 / 28
0.0%
0
  
= 1 = = 0 = 1 0 1 0 0 0 0 = = 1 0 0 0 0 1 0 = 1 0 0 1 1
–   Anechka 0.082320+16
−16		(+49)18.5 − 13.5
(+16−11=5)
57.8%
18.5 / 32
0.0%
+110
  
= 0 0 1 0 1 = = 0 1 = 0 0 1 = 1 0 0 1 1 1 1 1 0 0 1 1 1 1 1 1 0
–   Dorky 3.482308+16
−16		(+37)15.5 − 8.5
(+14−7=3)
64.6%
15.5 / 24
0.0%
+151
  
1 1 0 = 1 0 = 1 1 0 0 1 0 = 0 1 1 1 1 1 1 0 1 1
–   CyberPagno 2.1 32MB2295+16
−16		(+24)8.5 − 17.5
(+5−14=7)
32.7%
8.5 / 26
1.6%
−96
  
0 0 0 0 1 = 0 = = 0 0 0 1 0 1 = 0 = 0 = 0 0 1 1 = 0
–   Latista (Sinobyl) 1.52289+16
−16		(+18)13.5 − 14.5
(+10−11=7)
48.2%
13.5 / 28
4.9%
+7
  
1 0 1 0 1 = 0 1 0 = 0 = 0 0 = = 0 1 1 = = 1 0 0 1 0 1 1
–   Madeleine 0.22285+15
−15		(+14)13.5 − 10.5
(+11−8=5)
56.3%
13.5 / 24
9.8%
+57
  
1 0 = 1 = 1 1 1 1 0 0 1 1 1 = 1 0 0 1 0 0 0 = =
–   Chispa 4.0.32273+14
−14		(+2)12.5 − 11.5
(+4−3=17)
52.1%
12.5 / 24
41.5%
+10
  
= = = = = = = 0 = = 1 = = = = 1 1 = = 0 = = 1 0
–   Uralochka 1.1b2272+18
−18		(+1)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
45.2%
+81
  
= 1 = 1 = 0 1 = 0 1 0 1 1 1 1 0 = 1 1 0 1 1 0 1 1 1 0 1 = 0 0 =
–   Genesis 2.02247+16
−16		(−24)12.5 − 13.5
(+9−10=7)
48.1%
12.5 / 26
98.1%
−35
  
1 0 0 0 = = = 0 1 0 1 1 1 1 = = 0 = 1 1 = 0 0 1 0 0
–   Lime 662241+18
−18		(−30)16 − 16
(+14−14=4)
50.0%
16.0 / 32
99.3%
−30
  
1 0 1 1 1 0 = 1 1 1 1 0 0 = = 1 1 0 1 = 0 1 0 0 0 1 0 0 0 0 1 0
–   InmiChess 3.06N2241+15
−15		(−30)11.5 − 12.5
(+10−11=3)
47.9%
11.5 / 24
99.6%
−48
  
= 1 1 0 1 1 0 1 1 0 0 = 0 0 1 0 1 0 0 = 0 0 1 1
–   Nesik 0.7.0 alpha2237+16
−16		(−34)14 − 15
(+10−11=8)
48.3%
14.0 / 29
99.9%
−45
  
1 = 0 0 0 0 0 0 1 1 1 = 0 1 = = 1 1 = 1 1 1 0 = 0 = 0 = 0
–   NagaSkaki 5.122232+18
−18		(−39)19 − 13
(+15−9=8)
59.4%
19.0 / 32
99.9%
+26
  
1 1 = 0 0 1 0 = 1 1 = 1 0 0 = 1 = 1 1 1 1 0 1 0 0 = 1 0 1 1 = =
–   Sunsetter C10.3 64-bit JA2232+16
−16		(−39)10.5 − 9.5
(+8−7=5)
52.5%
10.5 / 20
100.0%
−17
  
1 0 = 0 = = 0 0 1 1 = 0 0 1 1 1 1 = 0 1
–   Alarm 0.93.12226+16
−16		(−45)14 − 18
(+11−15=6)
43.8%
14.0 / 32
100.0%
−89
  
0 = 1 1 0 0 1 0 0 1 0 1 1 = 0 0 1 = 1 = 0 = 1 1 0 0 = 0 0 0 0 1
–   Fortress 1.622216+15
−15		(−55)13 − 10
(+11−8=4)
56.5%
13.0 / 23
100.0%
−6
  
1 1 1 1 0 0 0 1 0 0 = = 1 1 = = 0 0 1 1 1 1 0
–   WJChess 1.642215+16
−16		(−56)15 − 9
(+12−6=6)
62.5%
15.0 / 24
100.0%
+32
  
1 0 0 1 1 1 1 = 1 1 1 1 0 0 1 = 0 1 0 1 = = = =
–   Gk 0.90 64-bit JA2194+16
−16		(−77)17.5 − 8.5
(+15−6=5)
67.3%
17.5 / 26
100.0%
+52
  
1 0 = 1 1 0 = 1 1 = = 0 0 1 1 1 1 1 1 0 1 0 1 1 = 1
–   Alf 1.09 JA2193+17
−17		(−78)23 − 9
(+20−6=6)
71.9%
23.0 / 32
100.0%
+87
  
1 = 1 1 1 = 0 1 1 = 1 0 1 1 1 1 1 0 1 = 0 1 1 = 1 1 1 1 = 1 0 0
–   Clarabit 1.00 64-bit2193+18
−18		(−78)24 − 8
(+23−7=2)
75.0%
24.0 / 32
100.0%
+138
  
1 0 0 = 1 1 1 1 1 1 1 1 0 1 1 0 1 1 1 1 1 = 0 0 1 0 1 1 1 1 1 1
–   Ghost 0.142189+17
−17		(−82)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
100.0%
−94
  
1 0 1 = 1 = = 1 1 0 1 = 1 1 0 1 = = 0 1 1 = 0 0 1 0 0 0 0 0 0 0
–   Wing 2.0a2179+16
−16		(−92)10.5 − 11.5
(+7−8=7)
47.7%
10.5 / 22
100.0%
−101
  
1 1 1 = 0 = 0 = 0 0 1 0 = 1 1 = 0 1 = 0 = 0
–   Uragano 3D 0.872174+16
−16		(−97)18 − 14
(+16−12=4)
56.3%
18.0 / 32
100.0%
−49
  
1 1 0 0 1 0 1 1 1 0 1 1 1 = = 0 0 1 1 1 0 1 1 1 0 = 0 0 0 = 0 1
–   Parrot 0707222161+17
−17		(−110)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
100.0%
−121
  
1 0 = 0 = 0 1 1 1 0 1 = 1 1 = 1 0 0 1 = 1 0 = 1 0 0 0 = 0 0 0 1
–   Matheus 2.32144+15
−15		(−127)24 − 4
(+23−3=2)
85.7%
24.0 / 28
100.0%
+198
  
1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 = 0 = 1 1 1 1 1 1 0
–   Bodo 0.2b2137+15
−15		(−134)19.5 − 7.5
(+18−6=3)
72.2%
19.5 / 27
100.0%
+48
  
0 1 1 1 1 0 1 1 0 1 = 0 1 1 1 0 1 1 1 1 1 0 1 1 = 1 =
–   Monarch 1.72131+16
−16		(−140)15.5 − 16.5
(+13−14=5)
48.4%
15.5 / 32
100.0%
−151
  
1 1 0 1 0 1 = = 1 0 0 1 0 0 0 0 = 0 1 1 0 1 = = 1 1 0 1 0 0 0 1
–   Bestia 0.902122+15
−15		(−149)16 − 11
(+15−10=2)
59.3%
16.0 / 27
100.0%
−71
  
1 0 0 1 1 1 = = 1 1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 1 0
–   Ax 0.82119+15
−15		(−152)14 − 9
(+14−9=0)
60.9%
14.0 / 23
100.0%
−54
  
1 1 0 1 0 0 1 1 1 1 1 0 1 0 1 1 1 0 0 1 0 1 0
–   RDChess 3.232117+16
−16		(−154)22 − 10
(+19−7=6)
68.8%
22.0 / 32
100.0%
−10
  
1 1 0 = 1 1 = 1 = 0 1 1 0 0 1 1 1 1 1 1 = 1 0 0 1 1 = 1 = 1 1 0
–   DelphiMax 2.92102+16
−16		(−169)20 − 6
(+18−4=4)
76.9%
20.0 / 26
100.0%
+45
  
1 1 1 = 1 1 1 1 1 0 1 1 1 1 1 1 = 0 0 1 1 0 = = 1 1
–   Requiem 0.532084+15
−15		(−187)25 − 7
(+21−3=8)
78.1%
25.0 / 32
100.0%
+17
  
1 1 1 1 0 1 1 1 1 1 1 = 1 = = = = 0 1 1 1 = 1 1 1 1 = 1 1 = 0 1
–   Small Potato 0.6.12082+16
−16		(−189)25 − 7
(+23−5=4)
78.1%
25.0 / 32
100.0%
+40
  
0 1 1 1 1 1 1 1 0 1 1 1 0 1 0 1 = 1 1 1 1 = 1 1 = 1 1 1 1 1 0 =
–   Elephant 1.062075+16
−16		(−196)18.5 − 6.5
(+17−5=3)
74.0%
18.5 / 25
100.0%
−1
  
1 0 0 1 1 1 1 = 0 1 0 1 1 = 1 = 0 1 1 1 1 1 1 1 1
–   JanWillem 1.132062+16
−16		(−209)17.5 − 7.5
(+14−4=7)
70.0%
17.5 / 25
100.0%
−70
  
= 1 1 1 = = 1 0 1 1 = 0 0 1 1 1 1 = 1 1 = 1 1 = 0
–   Marvin 1.3.02054+16
−16		(−217)22 − 3
(+21−2=2)
88.0%
22.0 / 25
100.0%
+139
  
1 1 1 1 1 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 = 1 = 1 1
–   Faile 1.4.42042+15
−15		(−229)22.5 − 4.5
(+21−3=3)
83.3%
22.5 / 27
100.0%
+56
  
1 1 1 1 1 0 = 1 1 1 0 1 = 1 1 1 1 1 1 1 0 1 1 1 1 = 1
1487 games in total: 643 wins, 567 losses, 277 draws (18.6%), score: 52.6%
Average opponent: −21.4 (2249.6), average distance to opponent: 99.5

Performance

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

Perf = C − 0.047 [±0.195] * 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