Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Other_variations
Moves: 1. d4 a5 2. c4 a4 3. e4 g6 4. Nf3 Bg7 5. Be3 c5 6. b3 cxd4 7. Bxd4 Bxd4 8. Qxd4
Nf6 9. b4 Nc6 10. Qe3 Nxb4 11. Na3 Ng4 *
Position (FEN): r1bqk2r/1p1ppp1p/6p1/8/pnP1P1n1/N3QN2/P4PPP/R3KB1R w KQkq - 2 12
White to move.
Themes:  Opening  
Puzzle rating: 1831
Best move: Qc3