rnbqk2r/R7/2p5/1pPp1p1p/1B1Pp2N/1Pn1NR2/4PPP1/1Q2KB2 w q d6 0 23
FEN state: rnbqk2r/R7/2p5/1pPp1p1p/1B1Pp2N/1Pn1NR2/4PPP1/1Q2KB2 w q d6 0 23 ; Best move: b1a1
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 king at e8 and black rook at h8. White rook at a7. Black pawn at c6. Black pawn at b5, white pawn at c5, black pawn at d5, black pawn at f5 and black pawn at h5. White bishop at b4, white pawn at d4, black pawn at e4 and white knight at h4. White pawn at b3, black knight at c3, white knight at e3 and white rook at f3. White pawn at e2, white pawn at f2 and white pawn at g2. White queen at b1, white king at e1 and white bishop at f1. Black queenside is the only castle move available. Half move number is 0. Full move number is 23. En Passant Target Square: d6. White to move.