Chess puzzle (Checkmate)
Opening: Grob_Opening, Grob_Opening_Grob_Gambit
Moves: 1. g4 d5 2. Bg2 Bxg4 3. c4 c6 4. cxd5 cxd5 5. Qb3 Be6 6. Qxb7 Nd7 7. Bxd5 Rc8
8. Bxe6 *
Position (FEN): 2rqkbnr/pQ1npppp/4B3/8/8/8/PP1PPP1P/RNB1K1NR b KQk - 0 8
Black to move.
Themes: Hanging Piece Opening Back Rank Mate, Mate in 1 
Puzzle rating: 1189
Best move: Rxc1#