r2q1b2/pb1k1p2/1Bpp1P2/1p3p2/3N3r/1P1P2QP/P1N5/1R2KB1R w K - 1 23
FEN state: r2q1b2/pb1k1p2/1Bpp1P2/1p3p2/3N3r/1P1P2QP/P1N5/1R2KB1R w K - 1 23 ; Best move: b6d8
The current state of the chess board is: Black rook at a8, black queen at d8 and black bishop at f8. Black pawn at a7, black bishop at b7, black king at d7 and black pawn at f7. White bishop at b6, black pawn at c6, black pawn at d6 and white pawn at f6. Black pawn at b5 and black pawn at f5. White knight at d4 and black rook at h4. White pawn at b3, white pawn at d3, white queen at g3 and white pawn at h3. White pawn at a2 and white knight at c2. White rook at b1, 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 1. Full move number is 23. White to move.