rq4nr/1ppbkppn/p7/3p4/1N2Np1P/P1P1P3/P2P2P1/R1B1KB1R b Q - 1 18
FEN state: rq4nr/1ppbkppn/p7/3p4/1N2Np1P/P1P1P3/P2P2P1/R1B1KB1R b Q - 1 18 ; Best move: d5e4
The current state of the chess board is: Black rook at a8, black queen at b8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black bishop at d7, black king at e7, black pawn at f7, black pawn at g7 and black knight at h7. Black pawn at a6. Black pawn at d5. White knight at b4, white knight at e4, black pawn at f4 and white pawn at h4. White pawn at a3, white pawn at c3 and white pawn at e3. White pawn at a2, white pawn at d2 and white pawn at g2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White queenside is the only castle move available. Half move number is 1. Full move number is 18. Black to move.