Search found 38 matches

by Pafifi
Sun May 24, 2020 12:09 am
Forum: Computer Chess Club: General Topics
Topic: Where can I download the latest AsmFish ?
Replies: 7
Views: 1828

Re: Where can I download the latest AsmFish ?

Newest version is on Github and there are really no new versions this year. If you found 2019 version it might well be the newest.
by Pafifi
Sat May 23, 2020 1:58 pm
Forum: Computer Chess Club: General Topics
Topic: Is 1. Bg6 Rxe1+ significantly better than 1. Bd3?
Replies: 8
Views: 1037

Is 1. Bg6 Rxe1+ significantly better than 1. Bd3?


This is from an EPD who gives the best move Bg6. However, I didn't find it any better than Bd3?
by Pafifi
Thu May 07, 2020 1:22 am
Forum: Computer Chess Club: General Topics
Topic: fxe7+ seems winning but losing later
Replies: 7
Views: 1306

fxe7+ seems winning but losing later

This is an unverified puzzle.

Tried Bluefish, Sting SF, Crystal, Stockfish on my laptop. All give fxe7+ winning at first glance, but seconds later change to a negative value.
Is fxe7+ the best move? Win, draw or lose?
by Pafifi
Wed May 06, 2020 3:36 am
Forum: Computer Chess Club: General Topics
Topic: Any engines good at solving puzzles like this?
Replies: 29
Views: 3133

Re: Any engines good at solving puzzles like this?

7N/pp6/8/8/8/3kpppp/3prqrp/K2Qbbnn w - - 0 1 White to win None of Stockfish, Sting SF, and Crystal can solve in 10min on my machine. It is good to know that none of the top engines waste time in searching such garbage positions. Finding the best move in chess is like searching the gold. If you dont...
by Pafifi
Wed May 06, 2020 3:34 am
Forum: Computer Chess Club: General Topics
Topic: Any engines good at solving puzzles like this?
Replies: 29
Views: 3133

Re: Any engines good at solving puzzles like this?

Current code seems to solve it fairly quickly, even without altering the null move status. FEN: 7N/pp6/8/8/8/3kpppp/3prqrp/K2Qbbnn w - - 0 1 Stockfish-x64-mingw: Found 746 tablebases 2/2 00:00 324k 24,921k -33.71 Nf7 Ke4 3/4 00:00 543k 33,958k -32.97 Nf7 Ke4 Nd6+ Kf4 4/6 00:00 763k 40,149k -34.62 N...
by Pafifi
Tue May 05, 2020 10:27 am
Forum: Computer Chess Club: General Topics
Topic: Any engines good at solving puzzles like this?
Replies: 29
Views: 3133

Any engines good at solving puzzles like this?


White to win
None of Stockfish, Sting SF, and Crystal can solve in 10min on my machine.
by Pafifi
Tue Apr 21, 2020 9:29 am
Forum: Computer Chess Club: General Topics
Topic: Amazing tactic played by a middle school boy!
Replies: 6
Views: 1226

Amazing tactic played by a middle school boy!

3qnrk1/5p1p/pp1ppPp1/n3P3/P7/B3Q3/B1r3PP/R4RK1 w - - 0 1 [FEN "3qnrk1/5p1p/pp1ppPp1/n3P3/P7/B3Q3/B1r3PP/R4RK1 w - - 0 1"] 1. Bxe6! (1. Bxd6? 1. .. Nxd6 2. exd6 Kh8 3. Qh6 Rg8 4. Bxe6 Qxd6 5. Rad1 (5. Bxf7 Qc5+ 6. Kh1 Qf8 7. Qxf8 Rxf8 8. Rac1 Rxc1 9. Rxc1 b5 10. Rc7 bxa4 11. Re7 Nc6=) 5. .. Qf8=) (1...
by Pafifi
Tue Apr 21, 2020 8:28 am
Forum: Computer Chess Club: General Topics
Topic: Test position: Kasparov-Pribyl (1980) - very tough
Replies: 12
Views: 4024

Re: Test position: Kasparov-Pribyl (1980) - very tough

Seem not a very significant advantage though?
by Pafifi
Tue Apr 21, 2020 7:50 am
Forum: Computer Chess Club: General Topics
Topic: Is 1. h3 Kf7 really better than 1. Be1 here?
Replies: 4
Views: 863

Is 1. h3 Kf7 really better than 1. Be1 here?


The answer given in the EPD file is h3, but I can't see how it can be better than Be1?
by Pafifi
Sat Mar 14, 2020 11:41 am
Forum: Computer Chess Club: General Topics
Topic: Is this winning or drawing?
Replies: 3
Views: 877

Is this winning or drawing?


The EPD best move is hxg6. However with 1. .. Qxh2 I didn't see a winning path. If it is drawish, what about 1. Nb7, also drawish?