r1b1kbr1/p2q4/3p2p1/2pnP1Pp/PnB1p3/3R3P/2PPN3/1NBQ1K1R b q - 1 18
FEN state: r1b1kbr1/p2q4/3p2p1/2pnP1Pp/PnB1p3/3R3P/2PPN3/1NBQ1K1R b q - 1 18 ; Best move: e4d3
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7 and black queen at d7. Black pawn at d6 and black pawn at g6. Black pawn at c5, black knight at d5, white pawn at e5, white pawn at g5 and black pawn at h5. White pawn at a4, black knight at b4, white bishop at c4 and black pawn at e4. White rook at d3 and white pawn at h3. White pawn at c2, white pawn at d2 and white knight at e2. White knight at b1, white bishop at c1, white queen at d1, white king at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 18. Black to move.