Chess Online

Black's first move in this sequence should be d7xe6. The capture of White's Rook alleviates pressure on Black's King, and leads to a possible escape. If White's 2nd move is Qa4, there is no need for Black's Knight on a5 to retreat, as he is protected by his Bishop at d2. Instead, if Black continues with his 2nd move as his e6 Pawn capturing White at f5, Black's King now has the e6 path along which to flee (if White's Q comes to c4, she should be captured by either of Black's Knights).
An interesting puzzle, but we think it fails to provide White with as worthy an opponent as he should typically face.