rnbq1bn1/p2p1pr1/N6p/1Pp1k2p/P1P3P1/8/4PP2/1QB1KBNR w K - 1 23
FEN state: rnbq1bn1/p2p1pr1/N6p/1Pp1k2p/P1P3P1/8/4PP2/1QB1KBNR w K - 1 23 ; Best move: c1f4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at d7, black pawn at f7 and black rook at g7. White knight at a6 and black pawn at h6. White pawn at b5, black pawn at c5, black king at e5 and black pawn at h5. White pawn at a4, white pawn at c4 and white pawn at g4. White pawn at e2 and white pawn at f2. White queen at b1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 23. White to move.