Chess puzzle (Crushing)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb3 Nf6 6. Nc3 Bb4 7. Bc4 Bxc3+ 8.
bxc3 Nxe4 9. Bb2 O-O 10. O-O a6 11. Re1 Qh4 12. Qf3 Ng5 13. Qg3 Qxg3 14. fxg3
b5 15. Bd5 Bb7 16. Bxc6 Bxc6 17. Rxe5 f6 18. Re7 Rae8 19. Rxe8 Rxe8 20. Na5 Bd5
21. a4 *
Position (FEN): 4r1k1/3p2pp/p4p2/Np1b2n1/P7/2P3P1/1BP3PP/R5K1 b - - 0 21
Black to move.
Themes:  Endgame  
Puzzle rating: 1768
Best move: Re2