Mate in two vs White to move

Start Analysis Engine to see Solution No. 484 Tactic: Chess, Puzzels | Cleanchess.com | 1 Jul 2015

1010484

[Event "Start Analysis Engine to see Solution No. 484 Tactic: Chess, Puzzels"] [Site "Cleanchess.com"] [Date "2015.07.01"] [Round "0"] [White "Mate in two"] [Black "White to move"] [FEN "4k2r/pPpn1ppp/1b6/3R2B1/8/8/PP3PPP/6K1 w k - 0 1"] 1.b8=Q+ ( 1.b8=R+ Nxb8 ) 1...Nxb8 *

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