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		TCEC Season 5 (formerly called nTCEC Season 2) was a private tournament directed and organized by Martin Thoresen and supported by the Chessdom Arena [1] [2] , started at August 26, 2013. The tournament ran in four stages plus a final. Only SMP capable engines with a minimum of supporting 8 cores were allowed to participate. Openings are from recent human high rated tournaments with a length of 6 moves. Time control is 120 minutes for the whole game plus 30 seconds increment per move [3] , Ponder off. Game broadcast live via the internet [4]. Finished at December 01, 2013, Komodo won the nTCEC Season 2 Superfinal with a margin of 25-23 versus Stockfish.
nTCEC Season 2 - Superfinal [5]

Stage 1

The Stage 1 qualifier from August 26 to September 17 was a seven round Swiss system tournament with 126 games played. 19 programs managed the promotion to Stage 2.

#	Engine	R1	R2	R3	R4	R5	R6	R7	P	SOS
01	Bouquet 1.8	27b1	08w½	07b1	14w1	02b½	03w1	05b½	5½	30½
02	Gull 2.2	23w1	19b1	05w1	03b½	01w½	04b½	06w½	5	32
03	Stockfish 4	15b1	20w1	14b½	02w½	08w1	01b0	12w1	5	29½
04	Komodo 1063	18b1	07w½	10b½	20w1	06b½	02w½	14b1	5	29
05	Equinox 2b	31b1	24w1	02b0	10w½	21b1	07w1	01w½	5	29
06	Houdini 3	22w1	13b½	12w1	08b½	04w½	09b½	02b½	4½	30½
07	Spike 1.4	33w1	04b½	01w0	22b1	19w1	05b0	16w1	4½	28
08	Junior 13.3	32w1	01b½	17w1	06w½	03b0	16b½	15w1	4½	27½
09	Rybka 4.1	26w1	12b½	13w½	15b½	17w1	06w½	10b½	4½	27
10	Critter 1.6a	36w1	17b½	04w½	05b½	13w1	12b½	09w½	4½	26
11	Naum 4.2	14w0	16b1	23w1	13b½	15w½	19b½	18w1	4½	25
12	Shredder 12	25b1	09w½	06b0	29w1	14b1	10w½	03b0	4	28
13	Hiarcs 14	29b1	06w½	09b½	11w½	10b0	21w½	27b1	4	27
14	Exchess 7.15b	11b1	21w1	03w½	01b0	12w0	29b1	04w0	3½	30
15	Tornado 4.88	03w0	30b1	27w1	09w½	11b½	18w½	08b0	3½	27½
16	Spark 1	21b½	11w0	28b½	26w1	20b1	08w½	07b0	3½	26½
17	Toga II 280513	28b1	10w½	08b0	18w½	09b0	20w½	32b1	3½	25½
18	Jonny 6	04w0	33b1	19w½	17b½	22w1	15b½	11b0	3½	25½
19	Onno 1.27	35b1	02w0	18b½	28w1	07b0	11w½	24b½	3½	25
20	Hannibal 220813	30w1	03b0	26w1	04b0	16w0	17b½	29w1	3½	25
21	The Baron 3.35a	16w½	14b0	34w1	27b1	05w0	13b½	23w½	3½	24½
22	Sjeng WC2008	06b0	31w1	24b1	07w0	18b0	32w1	25b½	3½	24
23	Gaviota 0.87a8	02b0	35w1	11b0	32w1	24b½	25w½	21b½	3½	23
24	Minkochess 1.3	34w1	05b0	22w0	33b1	23w½	26b½	19w½	3½	22½
25	Hamsters 0.71	12w0	26b0	30w½	34b1	33w1	23b½	22w½	3½	20½
26	Scorpio 2.76	09b0	25w1	20b0	16b0	30w1	24w½	28b½	3	24
27	Crafty 23.6	01w0	32b1	15b0	21w0	35b1	31w1	13w0	3	22
28	Delphil 3	17w0	36b1	16w½	19b0	29w0	33b1	26w½	3	18
29	Octochess 5178	13w0	34b½	36w1	12b0	28b1	14w0	20b0	2½	20
30	Alfil 13.1	20b0	15w0	25b½	31w½	26b0	35w1	34b½	2½	19
31	Arasan 16	05w0	22b0	32w0	30b½	36w1	27b0	35w1	2½	17
32	Arminius 100813	08b0	27w0	31b1	23b0	34w1	22b0	17w0	2	22½
33	Redqueen 1.14	07b0	18w0	35b1	24w0	25b0	28w0	36b1	2	19
34	Nebula 2	24b0	29w½	21b0	25w0	32b0	36w1	30w½	2	17½
35	Firefly 2.6	19w0	23b0	33w0	36b1	27w0	30b0	31b0	1	17
36	Bugchess2 1.9	10b0	28w0	29b0	35w0	31b0	34b0	33w0	0	17½

SOS: Sum of Opponent Scores

Stage 2

Stage 2, from September 17 to October 18, was a single round robin tournament with 171 games played. 10 engines managed the promotion to Stage 3.

#	Engine	K	S	G	H	H	R	C	B	N	J	S	J	E	S	S	O	T	T	E	P	SB
1	Komodo 1092		1	0	½	1	0	1	1	1	½	1	1	½	½	1	1	1	1	1	14	115¾
2	Stockfish 160913	0		1	1	½	½	½	1	1	0	1	½	½	1	1	1	1	1	1	13½	109¾
3	Gull 2.2	1	0		0	½	½	½	1	1	1	½	1	½	½	½	1	½	1	1	12	99¼
4	Hiarcs 14	½	0	1		½	½	½	0	0	1	½	1	1	1	1	1	½	1	1	12	93¼
5	Houdini 3	0	½	½	½		½	½	1	1	1	1	0	½	½	1	1	½	½	1	11½	95¼
6	Rybka 4.1	1	½	½	½	½		½	0	½	½	½	½	½	1	½	1	1	1	1	11½	93¼
7	Critter 1.6a	0	½	½	½	½	½		½	½	½	½	1	½	1	1	½	1	1	1	11½	89½
8	Bouquet 1.8a	0	0	0	1	0	1	½		½	1	½	½	1	½	1	1	1	1	1	11½	85½
9	Naum 4.5	0	0	0	1	0	½	½	½		1	½	1	½	½	½	1	1	1	½	10	76¼
10	Junior 13.3	½	1	0	0	0	½	½	0	0		1	0	½	1	1	½	½	½	1	8½	68
11	Shredder 12	0	0	½	½	0	½	½	½	½	0		½	½	1	½	½	1	½	1	8½	65¼
12	Jonny 6	0	½	0	0	1	½	0	½	0	1	½		½	0	½	½	1	1	1	8½	63½
13	Equinox 2b	½	½	½	0	½	½	½	0	½	½	½	½		½	0	0	1	½	½	7½	66½
14	Spike 1.4	½	0	½	0	½	0	0	½	½	0	0	1	½		1	½	0	1	1	7½	57½
15	Spark 1	0	0	½	0	0	½	0	0	½	0	½	½	1	0		1	½	½	½	6	44
16	Onno 1.27	0	0	0	0	0	0	½	0	0	½	½	½	1	½	0		1	½	½	5½	37¾
17	Tornado 5	0	0	½	½	½	0	0	0	0	½	0	0	0	1	½	0		½	½	4½	36
18	Toga II 140913	0	0	0	0	½	0	0	0	0	½	½	0	½	0	½	½	½		0	3½	26
19	Exchess 7.15b	0	0	0	0	0	0	0	0	½	0	0	0	½	0	½	½	½	1		3½	20¼

• SB: Sonneborn-Berger score

Stage 3

Stage 3, from October 18 to November 05, was a double round robin tournament with 90 games played and six programs to promote.

#	Engine	Ko	Bo	Ho	St	Gu	Na	Hi	Ry	Cr	Ju	P	SB
1	Komodo 11215		½1	½½	1½	1½	½½	½½	1½	01	1½	11½	100½
2	Bouquet 1.8b	½0		½½	1½	½½	½½	½1	½½	½1	½½	10	87¼
3	Houdini 9601	½½	½½		½0	½½	1½	½½	½1	½½	1½	10	86½
4	Stockfish 151013	0½	0½	½1		0½	½1	½1	½½	½½	11	10	84
5	Gull 2.3	0½	½½	½½	1½		½1	0½	½½	½½	½1	9½	82¾
6	Naum 4.6	½½	½½	0½	½0	½0		1½	½1	½1	½0	8½	76
7	Hiarcs 14	½½	½0	½½	½0	1½	0½		½½	½½	1½	8½	75
8	Rybka 4.1	0½	½½	½0	½½	½½	½0	½½		1½	½1	8½	73¼
9	Critter 1.6a	10	½0	½½	½½	½½	½0	½½	0½		½½	7½	69
10	Junior 13.3	0½	½½	0½	00	½0	½1	0½	½0	½½		6	54¼

• SB: Sonneborn-Berger score

Stage 4

Stage 4, from November 05 to 21, was a sixfold round robin tournament with 90 games played to determine the two finalists.

#	Engine	Stockfish	Komodo	Houdini	Bouquet	Naum	Gull	P	SB
1	Stockfish 021113		½½½½½1	½11½½1	½½1½½½	½11½½1	1½1½½1	20½	281¼
2	Komodo 1133	½½½½½0		½½½½½½	½½½½½1	1½½11½	111½01	18	244
3	Houdini 9601	½00½½0	½½½½½½		11½½½1	½½1½1½	½½½1½1	17	229½
4	Bouquet 1.8b	½½0½½½	½½½½½0	00½½½0		½1½½½½	½½½1½½	13½	195¼
5	Naum 4.6	½00½½0	0½½00½	½½0½0½	½0½½½½		½½10½½	10½	157
6	Gull R600	0½0½½0	000½10	½½½0½0	½½½0½½	½½01½½		10½	157

• SB: Sonneborn-Berger score

Superfinal

The superfinal between Stage 4 top two engines Komodo and Stockfish started at November 22, 2013, the day Komodo co-author Don Dailey died ^[6] , and Magnus Carlsen won the World Chess Championship. 48 games with 24 six move opening lines as proposed by Nelson Hernandez alias Cato the Younger ^{[7] [8]} , each opening played two times with reverse colors. Finished at December 01, 2013, Komodo won TCEC Season 5 with 25-23.

Stockfish 191113 vs Komodo 1142 23-25

Games		Opening		Results						Points
		ECO	Name	St-Ko	Ko-St		St		Ko	St		Ko
1	2	C13	French: Chatard-Alekhine, Spielmann Variation	½-½	1-0		½	-	1½	½	-	1½
3	4	A01	Nimzowitsch-Larsen Attack	0-1	0-1		1	-	1	1½	-	2½
5	6	E78	King's Indian: Four Pawns Attack	1-0	½-½		1½	-	½	3	-	3
7	8	C39	KGA: Kieseritsky, Berlin Defence	0-1	0-1		1	-	1	4	-	4
9	10	A45	Trompowsky: 2...c5 3.d5	½-½	½-½		1	-	1	5	-	5
11	12	B10	Caro-Kann: Two Knights, 3...dxe4	1-0	1-0		1	-	1	6	-	6
13	14	E06	Catalan: Closed	½-½	½-½		1	-	1	7	-	7
15	16	B90	Sicilian: Najdorf, Fischer-Sozin Attack	½-½	½-½		1	-	1	8	-	8
17	18	A70	Benoni: Classical, 8.h3	½-½	1-0		½	-	1½	8½	-	9½
19	20	B37	Sicilian: Maroczy Bind, 6.Nc2 d6 7.Be2	½-½	½-½		1	-	1	9½	-	10½
21	22	A81	Dutch: Blackburne Variation	½-½	½-½		1	-	1	10½	-	11½
23	24	B07	Pirc: 4.Be3, 150 Attack	½-½	½-½		1	-	1	11½	-	12½
25	26	A46	Indian: London System	0-1	1-0		0	-	2	11½	-	14½
27	28	A27	English: Three Knights, 3...f5 4.d4 e4	0-1	½-½		½	-	1½	12	-	16
29	30	D17	Slav: Czech, 6.Nh4	½-½	½-½		1	-	1	13	-	17
31	32	C86	Spanish: Worrall Attack, 7...O-O 8.c3 d5	½-½	½-½		1	-	1	14	-	18
33	34	D45	Semi-Slav: Rubinstein System	½-½	½-½		1	-	1	15	-	19
35	36	C41	Philidor: 3.Bc4	1-0	½-½		1½	-	½	16½	-	19½
37	38	D70	Neo-Gruenfeld: Alekhine's, 7.Be3 O-O	½-½	½-½		1	-	1	17½	-	20½
39	40	B23	Sicilian: Closed, Grand Prix, Schofman Variation	0-1	0-1		1	-	1	18½	-	21½
41	42	E10	Neo-Indian: 3.Nf3	1-0	½-½		1½	-	½	20	-	22
43	44	B63	Sicilian: Richter-Rauzer, 7.Qd2 Be7 8.O-O-O	1-0	½-½		1½	-	½	21½	-	22½
45	46	E61	King's Indian: 4.Nf3 O-O	½-½	½-½		1	-	1	22½	-	23½
47	48	B72	Sicilian: Dragon, 6.Be3	½-½	1-0		½	-	1½	23	-	25

• Encyclopaedia of Chess Openings (ECO)
• List of chess openings - Wikipedia

Forum Posts

• nTCEC Season 2 information + changes by Martin Thoresen, CCC, August 19, 2013
• Lineup for nTCEC Season 2 by Martin Thoresen, CCC, August 24, 2013
• nTCEC simulation by Don Dailey, CCC, October 28, 2013
• komodo wins stage 3 by Don Dailey, CCC, November 04, 2013
• TCEC - Thanks Martin and congrats to the winner Komodo by Gordon Robertson, CCC, December 05, 2013

External Links

• Thoresen Chess Engines Competition - Wikipedia
• nTCEC - Live Computer Chess Broadcast
• TCEC - Archive Mode
• Stageview TCEC superfinal
• TCEC - Thoresen Chess Engines Competition | Facebook
• Thoresen Chess Engine Competition | Denton Chess Club Blog by Ivan Urwin, October 5, 2013
• Puzzle from Thoresen Chess Engine Competition | Denton Chess Club Blog by Ivan Urwin, October 14, 2013
• Hiarcs King March – Brilliancy Prize? | Denton Chess Club Blog by Ivan Urwin, October 14, 2013 » Hiarcs
• Komodo wins the Thoresen Chess Engines Competition | Denton Chess Club Blog by Ivan Urwin, December 01, 2013 » Komodo
• Roanoke Programmer Dies Days Before Efforts Win World Chess Championship, The RoanokeStar.com, December 06, 2013 ^[9]
• One chess champion per laptop by Roberto Perez-Franco, MIT's The Tech, January 15, 2014

References

1. ^ TCEC computer chess championship New Season starts August 26th | Chessdom, August 15, 2013
2. ^ Chessdom Chess Arena - Play Online Chess
3. ^ nTCEC Season 2 information + changes by Martin Thoresen, CCC, August 19, 2013
4. ^ nTCEC - Live Computer Chess Broadcast
5. ^ TCEC - Thoresen Chess Engines Competitions Fotos
6. ^ Don Dailey, 1956-2013 by Larry Kaufman, CCC, November 23, 2013
7. ^ Interviews with Freestylers by Vasik Rajlich, Spring 2007
8. ^ Cato the Younger from Wikipedia
9. ^ Roanoke Star from Wikipedia

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