Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Austrian_Defense
Moves: 1. d4 d5 2. c4 c5 3. cxd5 Qxd5 4. Nf3 Bg4 5. Qa4+ Nc6 6. Nc3 Qd7 7. Ne5 Nxe5 8.
dxe5 Qxa4 9. Nxa4 e6 10. e3 O-O-O 11. h3 *
Position (FEN): 2kr1bnr/pp3ppp/4p3/2p1P3/N5b1/4P2P/PP3PP1/R1B1KB1R b KQ - 0 11
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 878
Best move: Rd1#