Compare your engine's performance

Discussion of chess software programming and technical issues.

Moderators: hgm, Rebel, chrisw

Chessnut1071
Posts: 313
Joined: Tue Aug 03, 2021 2:41 pm
Full name: Bill Beame

Compare your engine's performance

Post by Chessnut1071 »

Below is a forced checkmate by white. If you want to compare your engine’s performance, please list the following information below along with the solution for purposes of comparison. I will post the solution later after we have a few responses.

White:
Pa2, Pb2, Pc3, Pg2, Ph6, Rd1, Nf3, Qc4, Kb1

Black:
Pa7, Pb7, Pc7, Pc6, Pf6, Pg6, Ph7, Rf7, Kf8

Language:
Chip:
A.I. methods
Total calls to your engine [legal moves]
Time:
amanjpro
Posts: 883
Joined: Sat Mar 13, 2021 1:47 am
Full name: Amanj Sherwany

Re: Compare your engine's performance

Post by amanjpro »

Chessnut1071 wrote: Tue Aug 17, 2021 10:36 pm Below is a forced checkmate by white. If you want to compare your engine’s performance, please list the following information below along with the solution for purposes of comparison. I will post the solution later after we have a few responses.

White:
Pa2, Pb2, Pc3, Pg2, Ph6, Rd1, Nf3, Qc4, Kb1

Black:
Pa7, Pb7, Pc7, Pc6, Pf6, Pg6, Ph7, Rf7, Kf8

Language:
Chip:
A.I. methods
Total calls to your engine [legal moves]
Time:
Can you please provide the FEN of the position?
User avatar
xr_a_y
Posts: 1871
Joined: Sat Nov 25, 2017 2:28 pm
Location: France

Re: Compare your engine's performance

Post by xr_a_y »

If i read it well, this is a simple mate in 3, no need for engine ?

[d] 5k2/ppp2r1p/2p2ppP/8/2Q5/2P2N2/PP4P1/1K1R4 w - - 0 1
amanjpro
Posts: 883
Joined: Sat Mar 13, 2021 1:47 am
Full name: Amanj Sherwany

Re: Compare your engine's performance

Post by amanjpro »

xr_a_y wrote: Tue Aug 17, 2021 11:33 pm If i read it well, this is a simple mate in 3, no need for engine ?

[d] 5k2/ppp2r1p/2p2ppP/8/2Q5/2P2N2/PP4P1/1K1R4 w - - 0 1
I can find mate in 4, but not 3
Chessnut1071
Posts: 313
Joined: Tue Aug 03, 2021 2:41 pm
Full name: Bill Beame

Re: Compare your engine's performance

Post by Chessnut1071 »

amanjpro wrote: Tue Aug 17, 2021 11:32 pm
Chessnut1071 wrote: Tue Aug 17, 2021 10:36 pm Below is a forced checkmate by white. If you want to compare your engine’s performance, please list the following information below along with the solution for purposes of comparison. I will post the solution later after we have a few responses.

White:
Pa2, Pb2, Pc3, Pg2, Ph6, Rd1, Nf3, Qc4, Kb1

Black:
Pa7, Pb7, Pc7, Pc6, Pf6, Pg6, Ph7, Rf7, Kf8

Language:
Chip:
A.I. methods
Total calls to your engine [legal moves]
Time:
Can you please provide the FEN of the position?
5k2/ppp2r1p/2p2ppP/8/2Q5/2P1bN2/pp4p1/1K1R4
Chessnut1071
Posts: 313
Joined: Tue Aug 03, 2021 2:41 pm
Full name: Bill Beame

Re: Compare your engine's performance

Post by Chessnut1071 »

xr_a_y wrote: Tue Aug 17, 2021 11:33 pm If i read it well, this is a simple mate in 3, no need for engine ?

[d] 5k2/ppp2r1p/2p2ppP/8/2Q5/2P2N2/PP4P1/1K1R4 w - - 0 1
Check your engine, its well over 3 moves.
Chessnut1071
Posts: 313
Joined: Tue Aug 03, 2021 2:41 pm
Full name: Bill Beame

Re: Compare your engine's performance

Post by Chessnut1071 »

amanjpro wrote: Tue Aug 17, 2021 11:51 pm
xr_a_y wrote: Tue Aug 17, 2021 11:33 pm If i read it well, this is a simple mate in 3, no need for engine ?

[d] 5k2/ppp2r1p/2p2ppP/8/2Q5/2P2N2/PP4P1/1K1R4 w - - 0 1
I can find mate in 4, but not 3
The solution is well over 4 moves
Ras
Posts: 2495
Joined: Tue Aug 30, 2016 8:19 pm
Full name: Rasmus Althoff

Re: Compare your engine's performance

Post by Ras »

Chessnut1071 wrote: Wed Aug 18, 2021 12:10 amThe solution is well over 4 moves
No, it isn't. It's mate in 3 (moves, not plies). My engine has a dedicated mate solver mode where it won't overlook moves or counter moves.
Rasmus Althoff
https://www.ct800.net
Chessnut1071
Posts: 313
Joined: Tue Aug 03, 2021 2:41 pm
Full name: Bill Beame

Re: Compare your engine's performance

Post by Chessnut1071 »

Ras wrote: Wed Aug 18, 2021 12:29 am
Chessnut1071 wrote: Wed Aug 18, 2021 12:10 amThe solution is well over 4 moves
No, it isn't. It's mate in 3 (moves, not plies). My engine has a dedicated mate solver mode where it won't overlook moves or counter moves.
Please list your solution.
amanjpro
Posts: 883
Joined: Sat Mar 13, 2021 1:47 am
Full name: Amanj Sherwany

Re: Compare your engine's performance

Post by amanjpro »

Both Ras and Vivien are right, it is mate in 3

Here is what Zahak finds:

Code: Select all


position fen 5k2/ppp2r1p/2p2ppP/8/2Q5/2P2N2/PP4P1/1K1R4 w - - 0 1
go infinite
info depth 1 seldepth 2 hashfull 0 nodes 145 nps 366169 score cp 1411 time 0 pv c4b4 f7e7
info depth 2 seldepth 4 hashfull 0 nodes 687 nps 419104 score cp 1418 time 1 pv c4b4 f7e7 d1d8 f8f7
info depth 3 seldepth 4 hashfull 0 nodes 7594 nps 717092 score cp 1894 time 10 pv c4e6 f7e7 d1d8 e7e8
info depth 4 seldepth 4 hashfull 0 nodes 7968 nps 703978 score cp 2008 time 11 pv c4e6 f7d7 d1d7 b7b5
info depth 5 seldepth 5 hashfull 0 nodes 8662 nps 700099 score mate +2 time 12 pv c4e6 f7d7 d1d7 b7b5 d7d8
bestmove c4e6 ponder f7d7