White to play and mate in 2

[soft solstice]

This is a dumb puzzle, but I wanted to make a reasonable(?) solution to an old challenge on this server:
||A position where promoting to a queen or knight is a draw but promoting to a bishop wins||

[crimson swift]

how is promoting to a knight a draw

[soft solstice]

Tbf I looked at the position more and i kind of dislike how hard the knight draw is, but nd7, nd6, nb6, and if white nxe7 threatening nh6#, black goes nd5 and has a perpetual. Essentially this position works because if white doesnt mess up they're always a few moves away from mate, black is a few moves away from breaking itself out from its position and winning, and they stop each other because if black commits to opening up its position white is faster with mate

https://lichess.org/analysis/4qnkr/3PKp1b/4pPp1/4P1P1/8/8/8/8_w_-_-_0_1?color=white

[soft solstice]

A clearer version of this puzzle would be if there were no pawns on the e file, where black just wins if white underpromotes to a knight with ne6 and ng5 but i realized that after i'd posted this version so

[crimson swift]

ahh okay okay thanks

[long path]

bishop underpromotion

[dreamy badge]

d7xe8b sd7 gxf7

[noble cosmos]

lol just promote to bishop then take on f7

its mate

[native rune]

white pawn e8 promote bishop black Nd7 and white Bf7 mate. nice zugzwang