4kb1r/1p1b1p1p/rqnp3p/p3pBP1/P1p5/1P2PP2/2PK3P/RNQ3NR w k - 1 16
FEN state: 4kb1r/1p1b1p1p/rqnp3p/p3pBP1/P1p5/1P2PP2/2PK3P/RNQ3NR w k - 1 16 ; Best move: f5d7
The current state of the chess board is: Black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black bishop at d7, black pawn at f7 and black pawn at h7. Black rook at a6, black queen at b6, black knight at c6, black pawn at d6 and black pawn at h6. Black pawn at a5, black pawn at e5, white bishop at f5 and white pawn at g5. White pawn at a4 and black pawn at c4. White pawn at b3, white pawn at e3 and white pawn at f3. White pawn at c2, white king at d2 and white pawn at h2. White rook at a1, white knight at b1, white queen at c1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 16. White to move.