Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Maroczy_Variation
Moves: 1. e4 Nf6 2. d3 d6 3. Nc3 Nc6 4. Nf3 h6 5. Be2 Bg4 6. O-O e5 7. d4 exd4 8. Nxd4
Bxe2 9. Nxc6 Bxd1 10. Nxd8 Rxd8 11. Rxd1 Be7 12. Nd5 Nxd5 13. exd5 O-O 14. b3
Bf6 15. Rb1 Rfe8 16. Rd3 *
Position (FEN): 3rr1k1/ppp2pp1/3p1b1p/3P4/8/1P1R4/P1P2PPP/1RB3K1 b - - 4 16
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 442
Best move: Re1#