2r1kb1r/pb2n3/2ppPn1p/6p1/2pq1Q1P/N3P3/PPPP1P2/1RB2K1R w k - 1 18
FEN state: 2r1kb1r/pb2n3/2ppPn1p/6p1/2pq1Q1P/N3P3/PPPP1P2/1RB2K1R w k - 1 18 ; Best move: f4d4
The current state of the chess board is: Black rook at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7 and black knight at e7. Black pawn at c6, black pawn at d6, white pawn at e6, black knight at f6 and black pawn at h6. Black pawn at g5. Black pawn at c4, black queen at d4, white queen at f4 and white pawn at h4. White knight at a3 and white pawn at e3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at d2 and white pawn at f2. White rook at b1, white bishop at c1, white king at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 18. White to move.