A Challenging Mate In 5-Can you find the first move?

Bg5 after Rg6

block

Doesn't matter-Black king gets away no matter what you do in your solution.

and then king can run

Precisely

what i gave is correct solution, you created the puzzel and dont know about it, you first said N×h6 for my first move but forgot that it was pinned and then edited it, than said Kg3 that's also coverd by the knight , you may have a different solution but what i gave is correct

No it is not-check the engine analysis buddy

Fun fact : stockfish at depth 50 says your move is not checkmate in 5

stupidity

a hint is exploit the pin

Ok check engine yourself ok?

you guys can solve the puzzel now , you have a different solution that's fine...have fun

That is litherally because your move does not win -_- (speechless)

Good problem! Finding the 2nd move is harder than the first!

Excellent work showing a double underpromotion! Too tough for me; I saw the key and basic plan of mating on g2, but overlooked the looming stalemate if the white king simply marches to f3.

Thanks for the kinds words Rocky. The changed promotions based on a Black piece's play is the main idea content of the problem. The promoted bishop is a slight blemish, but a necessary evil.

Here is another one I've made in the meantime that has a different promotion pair.

Mate In 4 Moves

Hmmm:

That doesn't work Arisktotle-after 1... Nh6 2. e8=Q also works. Is there something amiss with your diagram?

That one's great as well! Surprising that Black is in zugzwang already in the diagram and the key just maintains the block.

I liked the maintaining key better then an obvious pawn push. Plus, it gives an element of which piece to move first and where.