Chess puzzle (Advantage)
Opening: Nimzo-Larsen_Attack, Nimzo-Larsen_Attack_Classical_Variation
Moves: 1. b3 d5 2. Bb2 Nf6 3. e3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Bg4 7. d4 c6 8. Nbd2
Nbd7 9. c4 Re8 10. c5 b6 11. b4 a5 12. a3 axb4 13. axb4 Rxa1 14. Qxa1 b5 15.
Qa6 Qc8 16. Qxc8 Rxc8 17. Ra1 Ne4 18. Nxe4 *
Position (FEN): 2r3k1/3nppbp/2p3p1/1pPp4/1P1PN1b1/4PN2/1B2BPPP/R5K1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1236
Best move: dxe4