rnbqk1r1/Q2p1pb1/4p2p/2p3p1/1p1P2nB/1P3NP1/P1PNPP1P/R2K1B1R w q - 0 12
FEN state: rnbqk1r1/Q2p1pb1/4p2p/2p3p1/1p1P2nB/1P3NP1/P1PNPP1P/R2K1B1R w q - 0 12 ; Best move: a7a8
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 g8. White queen at a7, black pawn at d7, black pawn at f7 and black bishop at g7. Black pawn at e6 and black pawn at h6. Black pawn at c5 and black pawn at g5. Black pawn at b4, white pawn at d4, black knight at g4 and white bishop at h4. White pawn at b3, white knight at f3 and white pawn at g3. White pawn at a2, white pawn at c2, white knight at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white king at d1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 12. White to move.