Chess puzzle (Advantage)
Opening: Grob_Opening, Grob_Opening_Grob_Gambit
Moves: 1. g4 d5 2. Bg2 Bxg4 3. c4 e6 4. Qb3 Qc8 5. cxd5 exd5 6. Bxd5 Be6 7. Qxb7 c6 8.
Qxa8 Bxd5 9. Nf3 Bc5 10. Nc3 Bxf3 11. exf3 Nf6 12. d3 *
Position (FEN): Qnq1k2r/p4ppp/2p2n2/2b5/8/2NP1P2/PP3P1P/R1B1K2R b KQk - 0 12
Black to move.
Themes: Defensive Move Middlegame  Castling
Puzzle rating: 2090
Best move: O-O