r3kr2/1npn1p1p/5b2/PB1pp1R1/4Pq1P/2PP4/P4NK1/RNBQ4 w q - 1 23
FEN state: r3kr2/1npn1p1p/5b2/PB1pp1R1/4Pq1P/2PP4/P4NK1/RNBQ4 w q - 1 23 ; Best move: c1f4
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at f8. Black knight at b7, black pawn at c7, black knight at d7, black pawn at f7 and black pawn at h7. Black bishop at f6. White pawn at a5, white bishop at b5, black pawn at d5, black pawn at e5 and white rook at g5. White pawn at e4, black queen at f4 and white pawn at h4. White pawn at c3 and white pawn at d3. White pawn at a2, white knight at f2 and white king at g2. White rook at a1, white knight at b1, white bishop at c1 and white queen at d1. Black queenside is the only castle move available. Half move number is 1. Full move number is 23. White to move.