Hardest One Move mate and hardest puzzle in world

@scuffi said in #8:
> lichess.org/analysis/r1qr1b2/1R3pkp/P2p2pN/ppnPp1Q1/bn2P3/4P1NP/PBBPp1P1/5RK1_w_Q_-_0_1
>
> For me this is the hardest mate in one. But it's a bit controversial, because it's not solvable until you have all the information about it

en passant?

#11 yeah. Blacks last move was e7-e5

@scuffi said in #8:
> lichess.org/analysis/r1qr1b2/1R3pkp/P2p2pN/ppnPp1Q1/bn2P3/4P1NP/PBBPp1P1/5RK1_w_Q_-_0_1
>
> For me this is the hardest mate in one. But it's a bit controversial, because it's not solvable until you have all the information about it

There is no mate in 1 this puzzle there is only 2 move mate
I have tried it many times but still I cannot find the one move checkmate#
Hence Engine cannot even find the checkmate in One ((1)

@albinsajan said in #13:
> There is no mate in 1 this puzzle there is only 2 move mate
> I have tried it many times but still I cannot find the one move checkmate#
> Hence Engine cannot even find the checkmate in One ((1)

No, in #12 scuffi said that blacks last move was e7-e5. Now, can you find mate in 1?

#8: That is a mate-in-2.

Before you say "En passant" the FEN/PGN has not been input correctly.

@Rookitiki and @ethanityz d×e6 is of no use and thats the only way to exploit e7-e5... All i can see are couple of mate in 2s....if there in any mate in 1 then please let me know..

@chronicalien said in #16:
> @Rookitiki and @ethanityz d×e6 is of no use and thats the only way to exploit e7-e5... All i can see are couple of mate in 2s....if there in any mate in 1 then please let me know..

What do you mean? Dxe6 is mate.

Now i did understand it gives check through bishop... I missed that aspect...

This could be the hardest puzzle bit.ly/2Z5WT1D.

@Shadow1414 said in #15:
> #8: That is a mate-in-2.
>
> Before you say "En passant" the FEN/PGN has not been input correctly.

Indeed. Here is the corrected FEN
r1qr1b2/1R3pkp/P2p2pN/ppnPp1Q1/bn2P3/4P1NP/PBBPp1P1/5RK1 w Q e6 0 1