Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nxc6 dxc6 6. Nc3 g6 7. b3 Bg7 8.
Bb2 Nf6 9. Qf3 O-O 10. Bc4 Bg4 11. Qf4 Rad8 12. O-O Be6 13. Bxe6 fxe6 14. Qf3
Qb4 15. a3 Qb6 16. Na4 Qc7 17. Qc3 Nh5 18. Qc4 Bxb2 19. Qxe6+ Kg7 20. Nxb2 Rd2
21. Qc4 Nf6 22. Rfe1 *
Position (FEN): 5r2/ppq1p1kp/2p2np1/8/2Q1P3/PP6/1NPr1PPP/R3R1K1 b - - 4 22
Black to move.
Themes:  Middlegame  
Puzzle rating: 1888
Best move: Ng4