r1b2b1r/2pkp3/1p1p4/pN1P4/1nP5/5q1p/PP5R/R1BQKB2 w Q - 0 23
FEN state: r1b2b1r/2pkp3/1p1p4/pN1P4/1nP5/5q1p/PP5R/R1BQKB2 w Q - 0 23 ; Best move: d1f3
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at c7, black king at d7 and black pawn at e7. Black pawn at b6 and black pawn at d6. Black pawn at a5, white knight at b5 and white pawn at d5. Black knight at b4 and white pawn at c4. Black queen at f3 and black pawn at h3. White pawn at a2, white pawn at b2 and white rook at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 23. White to move.