Search found 7411 matches

by Dann Corbit
Sat Nov 17, 2018 2:37 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Komodo 8CPU v Stockfish 8CPU
Replies: 30
Views: 1011

Re: Komodo 8CPU v Stockfish 8CPU

GAME 17 - Stockfish creates an advantage on the queenside, then makes the decisive breakthrough on the other flank. Opening line used: 1. b4 Nf6 2. Nf3 c6 3. c4 g6 Bless you for using an Orangutan opening in your tournament. The world is now a better place, and it will be a sunnier, brighter day to...
by Dann Corbit
Sat Nov 17, 2018 2:20 am
Forum: Computer Chess Club: General Topics
Topic: The Petroff Defense 4. Nd3
Replies: 14
Views: 364

Re: The Petroff Defense 4. Nd3

The entire game as a sequence of analyzed EPD records: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - move 01a; acd 70; acs 1589745; bm c4; c2 "perft 1 20 perft 2 400 perft 3 8902 perft 4 197281 perft 5 4865609 perft 6 119060324"; c3 "e4"; c4 "c4"; cce 38; ce 8; pm e4 {2379495} d4 {1725526} Nf...
by Dann Corbit
Sat Nov 17, 2018 1:51 am
Forum: Computer Chess Club: General Topics
Topic: The Petroff Defense 4. Nd3
Replies: 14
Views: 364

Re: The Petroff Defense 4. Nd3

There are lots of scores of about 1.5 pawns starting around ply 40, but those scores are meaningless. It is just computers looking at the wood imbalances and even though no progress can be made, they say one side is considerably ahead. The real peril started on white's 67th move and ended on black's...
by Dann Corbit
Fri Nov 16, 2018 11:01 pm
Forum: Computer Chess Club: General Topics
Topic: The Petroff Defense 4. Nd3
Replies: 14
Views: 364

Re: The Petroff Defense 4. Nd3

jdart wrote:
Fri Nov 16, 2018 10:40 pm
I haven't done a deep look but I think Carlsen was ok out of the opening. He got in big trouble later.

--Jon
Yes, when the moves were in the 40's
by Dann Corbit
Fri Nov 16, 2018 9:44 pm
Forum: Computer Chess Club: General Topics
Topic: The Petroff Defense 4. Nd3
Replies: 14
Views: 364

Re: The Petroff Defense 4. Nd3

Full of threats and danger, and a piece up at the end (to a pawn) for Caruna. Carlsen was the one living dangerously in this game. King shelter shattered early and down a piece in the endgame, but escaped with a draw.
by Dann Corbit
Fri Nov 16, 2018 8:10 pm
Forum: Computer Chess Club: General Topics
Topic: The Petroff Defense 4. Nd3
Replies: 14
Views: 364

Re: The Petroff Defense 4. Nd3

Can you post the PGN when the game is over?

I love wild games.

Especially since this opening has a propensity for opposite castles, which I adore.
by Dann Corbit
Fri Nov 16, 2018 7:29 pm
Forum: Computer Chess Club: General Topics
Topic: The Petroff Defense 4. Nd3
Replies: 14
Views: 364

Re: The Petroff Defense 4. Nd3

I have this opening listed as "Russian Game: Karklins-Martinovsky Variation." rnbqkb1r/ppp2ppp/3p1n2/8/4P3/3N4/PPPP1PPP/RNBQKB1R b KQkq - acd 40; acs 575; bm Nxe4; ce -25; pm Nxe4 {200}; pv Nxe4 Qe2 Qe7 Nf4 Nf6 d4 Qxe2+ Bxe2 Nc6 c3 g6 Na3 Bf5 Nc4 Bd7 O-O O-O-O Re1 Ne7 h4 Bg7 Bd2 Nf5 g3 Rhe8 Bf3 c6 a...
by Dann Corbit
Fri Nov 16, 2018 7:05 pm
Forum: Computer Chess Club: General Topics
Topic: 62 test positions from last couple of months
Replies: 10
Views: 287

Re: 62 test positions from last couple of months

The really difficult problem from this set of 62 is this one: Nq3n1k/8/P1p2Npp/2Kp3R/pp6/n3p3/8/4Q3 w - - acd 59; acs 620; bm Nc7; c0 "Rxh6+ is bad (leads to a draw) while Nc7 wins"; c3 "Nc7"; c6 ... Thanks to your message, I just see that Arena misinterpreted the EPD. "Rxh6?" was a remark but Aren...
by Dann Corbit
Fri Nov 16, 2018 5:53 am
Forum: Computer Chess Club: General Topics
Topic: 62 test positions from last couple of months
Replies: 10
Views: 287

Re: 62 test positions from last couple of months

Test suite with full analysis: 1k1r2r1/pb5n/1qpp2pP/1pb1p3/4P3/1PNP1QN1/1PPB4/2K2R1R w - - acd 47; acs 1800; bm b4; c0 "already in hard 2018"; c1 "Hard"; c3 "b4"; ce 189; id "hard2018.26"; pm b4; pv b4 Bxb4; 1k6/bPN2pp1/Pp2p3/p1p5/2pn4/3P4/PPR5/1K6 w - - acd 53; acs 10196; bm Na8; c0 "Garcia 2000"; ...