Brilliant moves that lead to mates in 1-5 #1
Na6!!, Bxa6
Be4!, f3
Bxf3!, g2
Bxg2!, e4
Bxe4!, and any move by black leads to Bxb7#!
if bxa6, then Be4#!
but the only correct solution is Na6!! sacrificing the knight, because if black takes with the pawn there is Be4#, if black takes with the bishop white moves Be4, if the bishop moves there is Bxb7#, so you can only move the other 3 Pawns(the 2 on the 7th rank are occupied/pinned), so you need to move the 3 Pawns down in white's half of the board, but not important wich pawn you move, you'll lose pawn by pawn, if you only have the occupied/pinned pawns, the bishop and the king left as black, you need to move the bishop, and then withe wins with Bxb7#, because while capturing the pawns, they white bishop ever stays on the long diagonal.