Owl Computer Chess Engines Rating List #10

The 10th Owl Computer Chess Engines Rating List released.  This featured the completed gauntlet 4 round matches  from Umko 1.2, Smaug 2.2.1, Zappa Mexico II, Jonny 4.00, Glaurung 2.2, Chronos 1.9.9 and SmarThink 1.20.

Houdini is still the number 1 which seems invincible at the top of the rating list.  It is followed by Robodini, Critter and Strelka with the only chess engines over 3000 ELO ratings.

There was a change in the ELO rating calculation where the parameters used for the BayesELO Program are mm 0 1 and offset 2825 Naum 4.2, to bring it closer to the statistical figures with the other rating list sites particularly CEGT and IPON.

Rank	Name	ELO	+	-	Games	Score	Oppo.	Draws
1	Houdini 3 Pro	3109	9	9	3768	76%	2906	32%
2	Robodini 1.1	3089	8	8	3768	74%	2906	32%
3	Critter 1.6a	3026	8	8	3768	66%	2908	47%
4	Strelka 5.5	3014	8	8	3768	65%	2908	45%
5	Tactico Pro	2967	8	8	3768	58%	2909	50%
6	Komodo 5	2963	8	8	3768	57%	2910	41%
7	RyanFish 1	2955	8	8	3768	56%	2910	47%
8	Stockfish 2.3.1	2955	8	8	3768	56%	2910	46%
9	Ippolit 0.080b3	2945	8	8	3768	55%	2910	50%
10	RobboLito 0.10	2943	8	8	3768	54%	2910	53%
11	Ivanhoe 46h	2938	8	8	3768	54%	2910	51%
12	LEOpard 0.7c	2937	8	8	3768	53%	2910	50%
13	Saros 3.3b	2937	8	8	3768	53%	2910	49%
14	Fire 2.2 xTreme	2933	8	8	3768	53%	2910	51%
15	Rybka 4.1	2932	8	8	3768	53%	2910	45%
16	ComStock 1.0.2b	2931	8	8	3768	53%	2910	44%
17	Vitruvius 1.11C	2930	8	8	3768	52%	2910	49%
18	Akkad 0.52b	2926	8	8	3768	52%	2911	50%
19	Gull II	2926	8	8	3768	52%	2911	48%
20	Bouquet 1.6	2925	8	8	3768	52%	2911	50%
21	Igorrit 0.086v9	2924	8	8	3768	51%	2911	49%
22	OpenCritter 1.1.37	2924	8	8	3768	51%	2911	46%
23	Tankist 3.1	2920	8	8	3768	51%	2911	51%
24	Sting SF PV	2914	8	8	3768	50%	2911	46%
25	Szint GM	2910	8	8	3768	50%	2911	46%
26	PanChess 00.240	2900	8	8	3768	48%	2911	46%
27	Damirs Killer 77	2899	8	8	3768	48%	2911	50%
28	Tinapa 1.01	2882	8	8	3768	46%	2912	45%
29	Crab PGO	2860	8	8	3768	43%	2912	42%
30	Hiarcs 14	2845	8	8	3768	41%	2913	33%
31	Spike 1.4	2842	8	8	3768	40%	2913	39%
32	Black Mamba 1.2c	2841	8	8	3768	40%	2913	40%
33	Naum 4.2	2825	8	8	3768	38%	2913	40%
34	Shredder 12	2799	8	8	3768	35%	2914	36%
35	Hannibal 1.3	2792	8	8	3768	34%	2914	35%
36	Sjeng 2010	2791	8	8	3768	34%	2914	33%
37	Protector 1.5.0	2737	31	31	268	45%	2781	33%
38	Spark 1.0	2733	32	32	268	44%	2782	29%
39	Chiron 1.1a	2702	32	32	268	40%	2782	33%
40	Thinker 54D Inert	2689	32	32	268	38%	2782	32%
41	Cyclone xTreme	2682	32	32	268	38%	2782	28%
42	Fruit 2.3.3f	2679	32	32	268	37%	2782	29%
43	Quazar 0.4	2672	32	32	268	37%	2782	30%
44	Doch 1.3.4	2658	33	33	268	35%	2783	25%
45	Grapefruit 1.0	2658	33	33	268	35%	2783	27%
46	Booot 5.1	2649	33	33	268	33%	2783	30%
47	Junior 13.3	2647	34	34	268	34%	2783	25%
48	Onno 1.2.70	2642	33	33	268	33%	2783	25%
49	Ktulu 9.0	2625	34	34	268	31%	2783	26%
50	Mad Prune 1.1.25	2622	34	34	268	31%	2783	24%
51	Belka 1.8.20	2620	34	34	268	31%	2783	22%
52	Toga II 2.0 SE	2617	34	34	268	30%	2783	28%
53	Chronos 1.9.9	2616	34	34	268	30%	2783	25%
54	Minko Chess 1.3	2615	34	34	268	30%	2783	27%
55	Glaurung 2.2	2612	34	34	268	30%	2783	24%
56	Gaviota 0.86	2609	34	34	268	29%	2783	25%
57	Tornado 4.88	2601	35	35	268	29%	2784	22%
58	Nemo 1.0.1b	2590	35	35	268	28%	2784	23%
59	Smaug 2.2.1	2590	35	35	268	27%	2784	23%
60	Bright 0.5c	2588	35	35	268	27%	2784	22%
61	Texel 1.01	2585	35	35	268	27%	2784	26%
62	Loop 2007	2576	35	35	268	26%	2784	23%
63	Umko 1.2	2572	35	35	268	25%	2784	24%
64	Jonny 4.00	2561	36	36	268	25%	2784	19%
65	Naraku 1.4	2558	37	37	268	26%	2784	12%
66	SmarThink 1.20	2553	37	37	268	24%	2784	17%
67	Crafty 23.5	2547	36	36	268	23%	2784	23%
68	Zappa Mexico II	2541	37	37	268	23%	2784	18%