Chess puzzle (Crushing)
Opening: Pirc_Defense, Pirc_Defense_Other_variations
Moves: 1. d4 d6 2. e4 d5 3. e5 Bf5 4. Nf3 e6 5. Nc3 c6 6. Be3 Bb4 7. Qd2 Qb6 8. a3 Qa5
9. Be2 h6 10. O-O g5 *
Position (FEN): rn2k1nr/pp3p2/2p1p2p/q2pPbp1/1b1P4/P1N1BN2/1PPQBPPP/R4RK1 w kq - 0 11
White to move.
Themes:  Middlegame  
Puzzle rating: 1022
Best move: axb4