Hey everyone.
puzzle #yEIXF
After b4 and h6 i played Kf6 to stop the pawn. It said i was wrong, i lost points and the correct move would be Kf7. I dont understand why Kf6 is wrong. Stockfish says both moves are winning (-14.0 für Kf7 and -12,9 for Kf6, depth 25/25).
after Kf6 white can give a check with pawn g6, so maybe Kf6 is a little slower but there is no significant difference. both moves are clearly winning for black. am i wrong? is stockfish wrong?
lichess.org/training/yEIXF@RadioNorbert kf6 would bring an additional time waster - g5 check which would further increase the time of check mate. So kf7 is the best move there.
The puzzles are based on the move which will take the least time to make a mate not as per winning positions , you had to play the most efficient move. When are are two roads , choose the one which has no traffic.
@RadioNorbert Yes, you're right the puzzle will probably be removed soon.
@WillBeAGrandMaster said in #3:
> The puzzles are based on the move which will take the least time to make a mate not as per winning positions , you had to play the most efficient move.
That's not true, a puzzle must always have only one solution. If it has multiple winning moves and all the winning moves aren't listed as correct it is a wrong puzzle.
I am not even sure it is faster to play Kf7. If white goes for check on g6, this is a possibility to play Kg6 so you can instantly take the h-pawn if white moves it. After Kf7 - h7 you have to play Kg7 to take the pawn in the next move. So is it really faster to play Kf7? Why? btw. I analyzed it again. Now stockfish says Kf7 and Kf6 are both -16,7. So i am pretty sure there is no significant difference.
Yeah... looks like must be removed...
@Yeltcki what about puzzles like this
lichess.org/training/ndQ97 where there's a lot of mating moves
is that technically correct since all the winning moves are listed as correct
#7 Yes.
#1 I'm at depth 31: Kf7 is -35.4 and Kf6 is -29.5. I would agree that both moves are working equally.
No, puzzles not are not supposed to have multiple winning moves.
Kf6 mates in 18
Kf7 mates in 18.
Poor puzzle.
