Comments (13)
Can you explain ? Berserk was playing White or Black ? And what was the blunder ?
from berserk.
Berserk was playing White and h4h5 is blunder
from berserk.
h4h5 is blunder
Why do you state that ? What is your reference ? Mine is the newest ShashChess GZ NNUE, which tells me Black is better in this position (about -1) and White best moves are g5 and h5 !?
from berserk.
My reference is Stockfish 15 and Power Fritz 18. See this :
from berserk.
minus 3.12 !? I just tested SF 15 NNUE and Komodo 14.1 and also SF CorChess v3 NN .. they all give g5 and h5 are best, although their eval differs (some engine show a 'conservative' eval).
is your screenshot from SF or Fritz ? Which depth ? Btw. i'm on Linux and i cannot use Fritz ..
from berserk.
i know what go depth 60
does : the engine will calculate all evals on all depths upto depth 60 and then give a best move .. when i let SF 15 run for 10 minutes it reaches depth 45 on my machine, and indeed g5 is a bit better than h5 .. not to say it's a "Critial Blunder".
maybe depth 60 will show -3.12 at last, but this will take a long time .. how did you ever come up with the idea to let your engine run upto depth 60 in this position ? Do it overnight ? When this position would ever occur in a real game, the engine will not have time to calculate upto depth 60, does it ?
from berserk.
I did not go depth 60
, Also I let SF 15 run for 10 minutes same you but with this 2 comment :
position fen 8/4b2k/2b3pp/1p2p3/p3N1PP/P1N1P1K1/1P6/8 w - - 0 56 moves g4g5
position fen 8/4b2k/2b3pp/1p2p3/p3N1PP/P1N1P1K1/1P6/8 w - - 0 56 moves h4h5
If you want, I can create a challenge with you in Lichess via h4h5
in rapid game , I'm sure h4h5
is blunder ....
Edit : I think maybe there is a bug in "NN for the 2 Knights Position vs 2 Bishops Position" ?!
from berserk.
now tell me why it's a critical blunder ? I think with good play Black will win this position, because eval is about -1.6+ , but this will happen with both g5 and h5.
from berserk.
The position is equal. g5 is the only good move and h5 is blunder.
from berserk.
Why would you open an issue for this? Berserk is not perfect. No engine is. Making a mistake is simply going to happen.
from berserk.
@jhonnold Thanks for reply. I think there is a bug in NN training for "2 Knights Position vs 2 Bishops Position".
Also similar to this issue found by @tissatussa for "4 Knights Position".
from berserk.
sorry, i see no relation with my "4 Knights Position".
from berserk.
sorry, i see no relation with my "4 Knights Position".
"(2 Knights vs 2 Bishops) Position" is no different from "(4 Knights) Position" because these positions rarely occur in games.
from berserk.
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