rnb2bn1/ppqpk1p1/Q5p1/2p1p2r/3PP3/PPN5/2P2P1p/R1B1KB1R b K - 3 15
FEN state: rnb2bn1/ppqpk1p1/Q5p1/2p1p2r/3PP3/PPN5/2P2P1p/R1B1KB1R b K - 3 15 ; Best move: b8a6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black queen at c7, black pawn at d7, black king at e7 and black pawn at g7. White queen at a6 and black pawn at g6. Black pawn at c5, black pawn at e5 and black rook at h5. White pawn at d4 and white pawn at e4. White pawn at a3, white pawn at b3 and white knight at c3. White pawn at c2, white pawn at f2 and black pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 3. Full move number is 15. Black to move.