Chess puzzle (Checkmate)
Opening: Indian_Defense, Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. Bf4 d6 3. Nc3 g6 4. e4 c5 5. dxc5 dxc5 6. Qxd8+ Kxd8 7. O-O-O+ Ke8
8. Nb5 Na6 9. f3 Bg7 10. Ne2 Kf8 11. Nec3 Nh5 *
Position (FEN): r1b2k1r/pp2ppbp/n5p1/1Np4n/4PB2/2N2P2/PPP3PP/2KR1B1R w - - 5 12
White to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 730
Best move: Rd8#