rn1k1bn1/pp1b1p2/2pNp1p1/1P1p1r2/P1P5/N1R4P/3PP3/q1BQKB1R w K - 0 17
FEN state: rn1k1bn1/pp1b1p2/2pNp1p1/1P1p1r2/P1P5/N1R4P/3PP3/q1BQKB1R w K - 0 17 ; Best move: d6f5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black bishop at d7 and black pawn at f7. Black pawn at c6, white knight at d6, black pawn at e6 and black pawn at g6. White pawn at b5, black pawn at d5 and black rook at f5. White pawn at a4 and white pawn at c4. White knight at a3, white rook at c3 and white pawn at h3. White pawn at d2 and white pawn at e2. Black queen at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 17. White to move.