Chess puzzle (Advantage)
Opening: Slav_Defense, Slav_Defense_Other_variations
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. a3 e6 6. b4 Be7 7. c5 b5 8. Bb2 O-O 9.
Nf3 Nbd7 10. Be2 a5 11. O-O axb4 12. axb4 Rxa1 13. Qxa1 Bb7 14. Qa7 Qc7 15. Ra1
Ra8 16. Qxa8+ Bxa8 17. Rxa8+ Nf8 18. h3 h6 19. Ne5 g5 *
Position (FEN): R4nk1/2q1bp2/2p1pn1p/1pPpN1p1/1P1P4/2N1P2P/1B2BPP1/6K1 w - - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 2316
Best move: Ra6