rNb2b1r/pppq1kp1/5n1p/1B1ppp2/1PP4P/3PP2R/P1Q2PP1/RNB1K3 w Q - 2 13
FEN state: rNb2b1r/pppq1kp1/5n1p/1B1ppp2/1PP4P/3PP2R/P1Q2PP1/RNB1K3 w Q - 2 13 ; Best move: b8d7
The current state of the chess board is: Black rook at a8, white knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black queen at d7, black king at f7 and black pawn at g7. Black knight at f6 and black pawn at h6. White bishop at b5, black pawn at d5, black pawn at e5 and black pawn at f5. White pawn at b4, white pawn at c4 and white pawn at h4. White pawn at d3, white pawn at e3 and white rook at h3. White pawn at a2, white queen at c2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1 and white king at e1. White queenside is the only castle move available. Half move number is 2. Full move number is 13. White to move.