Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 e6 4. c3 Nc6 5. d4 cxd4 6. cxd4 Nf6 7. Nc3 Be7 8. d5
exd5 9. exd5 Nb8 10. O-O Nbd7 11. Re1 O-O 12. Ng5 Re8 13. Bd3 g6 14. Qf3 Ne5
15. Qf4 Nxd3 16. Qh4 Bf8 17. Rxe8 Qxe8 18. Be3 Bg7 19. Bd4 Ne5 20. Nce4 Ned7 *
Position (FEN): r1b1q1k1/pp1n1pbp/3p1np1/3P2N1/3BN2Q/8/PP3PPP/R5K1 w - - 6 21
White to move.
Themes:  Middlegame  
Puzzle rating: 2169
Best move: Re1