1rbq1bn1/ppppp1kr/8/2n2pp1/NP3PPp/P3P2P/2PP3N/R1BQKBR1 w Q - 5 12
FEN state: 1rbq1bn1/ppppp1kr/8/2n2pp1/NP3PPp/P3P2P/2PP3N/R1BQKBR1 w Q - 5 12 ; Best move: c1b2
The current state of the chess board is: Black rook 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 b7, black pawn at c7, black pawn at d7, black pawn at e7, black king at g7 and black rook at h7. Black knight at c5, black pawn at f5 and black pawn at g5. White knight at a4, white pawn at b4, white pawn at f4, white pawn at g4 and black pawn at h4. White pawn at a3, white pawn at e3 and white pawn at h3. White pawn at c2, white pawn at d2 and white knight at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. White queenside is the only castle move available. Half move number is 5. Full move number is 12. White to move.