Spyke

Couldn't figure a reliable way to mate, found the game and holy hell am I impressed. Black made the mistake of trying to pin White's queen, White played Bc7 after that forcing a second mistake of moving the rook.

Solution for mate in 5

!Re8+ Kxe8. Qe4+ Ne6. Qa8+ Rd8. Qxd8+ Nxd8. Rxd8#!<

Full game

6

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White to play and mate in 5 | Spyke