Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Albin_Countergambit
Moves: 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Bf4 Nge7 6. Nbd2 Ng6 7. Bg3 Qe7 8.
a3 Ncxe5 9. Nxe5 Nxe5 10. Rc1 *
Position (FEN): r1b1kb1r/ppp1qppp/8/4n3/2Pp4/P5B1/1P1NPPPP/2RQKB1R b Kkq - 1 10
Black to move.
Themes: Pin Opening Mate in 1, Smothered Mate 
Puzzle rating: 1197
Best move: Nd3#