Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Nimzowitsch_Attack
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bc4 Bg4
8. h3 Bh5 9. g4 Bg6 10. Be3 Nc6 11. Qd5 Qd7 12. O-O-O O-O-O 13. Bb5 Rhe8 *
Position (FEN): 2krr3/pppqbppp/2np2b1/1B1Q4/6P1/2P1BN1P/PPP2P2/2KR3R w - - 9 14
White to move.
Themes:  Middlegame  
Puzzle rating: 2190
Best move: Nd4