Chess puzzle (Equality)
Moves: 1. c4 e5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. e3 Ne7 6. Nge2 Nbc6 7. O-O Be6 8. b3
d5 9. cxd5 Nxd5 10. Ba3 f5 11. d4 exd4 12. Nxd5 *
Position (FEN): r2qk2r/ppp3bp/2n1b1p1/3N1p2/3p4/BP2P1P1/P3NPBP/R2Q1RK1 b kq - 0 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1314
Best move: Bxd5