Chess puzzle (Advantage)
Opening: Nimzo-Indian_Defense, Nimzo-Indian_Defense_Normal_Line
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Bxc3+ 5. bxc3 b6 6. Be2 Bb7 7. Bf3 Bxf3 8.
Nxf3 O-O 9. Ba3 d6 10. c5 dxc5 11. dxc5 Qxd1+ 12. Rxd1 Nbd7 13. cxb6 Rfc8 14.
bxc7 Rxc7 15. Rc1 Rac8 16. Bb4 Nd5 17. Ba5 Rc5 18. Bb4 *
Position (FEN): 2r3k1/p2n1ppp/4p3/2rn4/1B6/2P1PN2/P4PPP/2R1K2R b K - 7 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1293
Best move: Nxb4