Chess puzzle (Advantage)
Moves: 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2 c5 8. d5
e6 9. Nbc3 O-O 10. O-O Na6 11. a3 c4 12. Qc2 Nc5 13. Be3 Nd3 14. Nf4 exd5 15.
exd5 Bf5 16. Bxb6 Qxb6 17. Be4 Bxe4 18. Nxe4 Qxb2 19. Qxc4 Nxf4 20. gxf4 Qxa1 *
Position (FEN): r4rk1/pp3pbp/6p1/3P4/2Q1NP2/P7/5P1P/q4RK1 w - - 0 21
White to move.
Themes:  Middlegame  
Puzzle rating: 1201
Best move: Rxa1