Chess puzzle (Advantage)
Opening: Alekhine_Defense, Alekhine_Defense_Two_Pawn_Attack
Moves: 1. e4 Nf6 2. e5 Nd5 3. c4 Nb4 4. a3 Nd3+ *
Position (FEN): rnbqkb1r/pppppppp/8/4P3/2P5/P2n4/1P1P1PPP/RNBQKBNR w KQkq - 1 5
White to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1099
Best move: Bxd3