2bq1bnr/1pp1k1p1/r7/p2pppPp/P6P/1PPN1P2/1B1P1P1R/RN1QKB2 b Q - 4 18
FEN state: 2bq1bnr/1pp1k1p1/r7/p2pppPp/P6P/1PPN1P2/1B1P1P1R/RN1QKB2 b Q - 4 18 ; Best move: a6e6
The current state of the chess board is: Black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black king at e7 and black pawn at g7. Black rook at a6. Black pawn at a5, black pawn at d5, black pawn at e5, black pawn at f5, white pawn at g5 and black pawn at h5. White pawn at a4 and white pawn at h4. White pawn at b3, white pawn at c3, white knight at d3 and white pawn at f3. White bishop at b2, white pawn at d2, white pawn at f2 and white rook at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 4. Full move number is 18. Black to move.