Search found 28 matches

by Kanizsa
Wed Jan 09, 2019 1:32 pm
Forum: Computer Chess Club: General Topics
Topic: Lc0 with latest test30 nets is vastly superior positionally
Replies: 39
Views: 5570

Re: Lc0 with latest test30 nets is vastly superior positionally

b2 b3.JPG
b3!
b2 b3.JPG (252.46 KiB) Viewed 1032 times
Another position that I suggest to add is this. Very very difficult for a program to find b3 in order to reply on Nc5 with Rb1! and b4 (what does Leela play?)
by Kanizsa
Wed Jan 09, 2019 1:19 pm
Forum: Computer Chess Club: General Topics
Topic: Lc0 with latest test30 nets is vastly superior positionally
Replies: 39
Views: 5570

Re: Lc0 with latest test30 nets is vastly superior positionally

Larry Kaufmann chose a position similar to this: it is a very difficult task for a program to find a2-a4! Also for today's standards.
Only Komodo finds it, neither Fritz 11 or Stockfish
by Kanizsa
Tue Jan 08, 2019 12:13 pm
Forum: Computer Chess Club: General Topics
Topic: Lc0 with latest test30 nets is vastly superior positionally
Replies: 39
Views: 5570

Re: Lc0 with latest test30 nets is vastly superior positionally

Great Kai, and congratulations for this work and its proof. Insight of judging chess programs from the earliest opening moves is not new. Larry kaufman historically thought it in the 90s and appeared in a first suite of computer chess test on Computer Chess Report review (if I remember correctly). T...
by Kanizsa
Sun Jan 06, 2019 9:51 am
Forum: Computer Chess Club: General Topics
Topic: " End of an Era" is coming?
Replies: 69
Views: 10002

Re: " End of an Era" is coming?

Nay Lin Tun wrote:
Sun Jan 06, 2019 2:46 am
And the newer nets are getting stronger day by day, may be +30 to +50 elo.
I don't believe in this progression.
Elo growth is not deterministic, but for sure not 30-50 Elo points daily
by Kanizsa
Mon Nov 26, 2018 12:40 pm
Forum: Computer Chess Club: General Topics
Topic: DeepMinds AlphaZero Analysis Of World Champs 2018!
Replies: 14
Views: 2171

Re: DeepMinds AlphaZero Analysis Of World Champs 2018!

r1b2rk1/ppqn2bp/2p3p1/2P1p3/P3Pp2/3P1N2/2PB1PPP/RN1QR1K1 b - - 0 13 13 ..Qd8 !! was another AlphaZero suggestion, leaving the pawn on c5 to push through the kingside pawns Stockfish 201118 finds 13..Dd8! like AlphaZero. Instead Stockfish 9 plays 13..a5 ? 14.Bc1 N:c5 in order to regain material equa...
by Kanizsa
Mon Nov 26, 2018 12:09 pm
Forum: Computer Chess Club: General Topics
Topic: DeepMinds AlphaZero Analysis Of World Champs 2018!
Replies: 14
Views: 2171

Re: DeepMinds AlphaZero Analysis Of World Champs 2018!

2kr3r/p2n4/1ppqbp1p/2p1b1pN/4P1P1/3PB2P/PPPQ1R2/3N1RK1 b - - 0 20 Incredible position during analysis of the first game. 20. Nd1 is refused by an amazing move which AlphaZero finds, but not Stockfish 9 (20...Kb7 -0.79) 20: ... f5 !! after 21.exf5 intending ..Bf7 Bxh5 and Nf6 followed by doubling on...
by Kanizsa
Mon Nov 26, 2018 11:56 am
Forum: Computer Chess Club: General Topics
Topic: DeepMinds AlphaZero Analysis Of World Champs 2018!
Replies: 14
Views: 2171

Re: DeepMinds AlphaZero Analysis Of World Champs 2018!

2kr1n1r/2q2pb1/1pp1b1pp/p7/P2pP3/2NQBN1P/1PP2RP1/R5K1 w - - 0 18 Which recapture is better? 18: B:d4 or 18: N:d4 ?? Sadler: AlphaZero's preference was for 18 B:d4, which I think is related to its love of creating and exploiting weak square complexes within the opponent's position. The plan of excha...
by Kanizsa
Mon Nov 26, 2018 11:40 am
Forum: Computer Chess Club: General Topics
Topic: DeepMinds AlphaZero Analysis Of World Champs 2018!
Replies: 14
Views: 2171

Re: DeepMinds AlphaZero Analysis Of World Champs 2018!



Caruana played 10. Nf3-h2 ?
StockFish 021118 prefers 10. Qc1 Nf8 at depth 50

Alpha Zero suggests 10. a4
by Kanizsa
Sun Nov 25, 2018 11:21 am
Forum: Computer Chess Club: General Topics
Topic: DeepMinds AlphaZero Analysis Of World Champs 2018!
Replies: 14
Views: 2171

Re: DeepMinds AlphaZero Analysis Of World Champs 2018!

Following this game,

1rbq1rk1/1p2b2p/pN1p4/P2Pn1p1/2P2p2/2B2B2/1P4PP/R2Q1RK1 b - - 0 20

20. … Bc8-f5 was a mistake according to AlphaZero. Every chessplayer in the world had played this aggressive move !

According to Alpha Zero better was 20. ..Dd8-c7, giving up every idea to attack the King
by Kanizsa
Sun Nov 25, 2018 11:13 am
Forum: Computer Chess Club: General Topics
Topic: DeepMinds AlphaZero Analysis Of World Champs 2018!
Replies: 14
Views: 2171

Re: DeepMinds AlphaZero Analysis Of World Champs 2018!

In game n. 8, on move 14

r1bq1rk1/1p1nb1pp/p2p4/P2Ppp2/8/N7/1PPBBPPP/R2Q1RK1 b - - 0 14

Carlsen played 14: ..e4?.
According to Alpha Zero he had to play 14: ..f4 ! with slight White advantage.