rnb3nr/p2kb1pp/1p2p3/2pq1p2/P1B4P/2N2P2/1PPPQ1PR/R1B1K1N1 b Q - 1 12
FEN state: rnb3nr/p2kb1pp/1p2p3/2pq1p2/P1B4P/2N2P2/1PPPQ1PR/R1B1K1N1 b Q - 1 12 ; Best move: d5d6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black king at d7, black bishop at e7, black pawn at g7 and black pawn at h7. Black pawn at b6 and black pawn at e6. Black pawn at c5, black queen at d5 and black pawn at f5. White pawn at a4, white bishop at c4 and white pawn at h4. White knight at c3 and white pawn at f3. White pawn at b2, white pawn at c2, white pawn at d2, white queen at e2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 12. Black to move.