Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Three_Knights_Game
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Nxe5 Qe7 5. Nf3 Bxc3 6. bxc3 Nxe4 7. Qe2 d5
8. Bb2 O-O 9. d3 Re8 10. dxe4 Qxe4 11. Qxe4 Rxe4+ 12. Be2 b6 13. O-O *
Position (FEN): rnb3k1/p1p2ppp/1p6/3p4/4r3/2P2N2/PBP1BPPP/R4RK1 b - - 1 13
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1170
Best move: Rxe2