r1b1kb1r/pppp1pp1/n3pn2/4N2p/4P3/6P1/PPPK1P1P/RNBQRB2 w kq - 4 9
FEN state: r1b1kb1r/pppp1pp1/n3pn2/4N2p/4P3/6P1/PPPK1P1P/RNBQRB2 w kq - 4 9 ; Best move: d1f3
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at g7. Black knight at a6, black pawn at e6 and black knight at f6. White knight at e5 and black pawn at h5. White pawn at e4. White pawn at g3. White pawn at a2, white pawn at b2, white pawn at c2, white king at d2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white rook at e1 and white bishop at f1. Black kingside and black queenside castles are available. Half move number is 4. Full move number is 9. White to move.