rn5r/p2kbppp/1q1ppn2/2pb4/P2P2PP/1P2PP2/1RPQ1KB1/2B3NR b - - 0 18
FEN state: rn5r/p2kbppp/1q1ppn2/2pb4/P2P2PP/1P2PP2/1RPQ1KB1/2B3NR b - - 0 18 ; Best move: c5d4
The current state of the chess board is: Black rook at a8, black knight at b8 and black rook at h8. Black pawn at a7, black king at d7, black bishop at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black queen at b6, black pawn at d6, black pawn at e6 and black knight at f6. Black pawn at c5 and black bishop at d5. White pawn at a4, white pawn at d4, white pawn at g4 and white pawn at h4. White pawn at b3, white pawn at e3 and white pawn at f3. White rook at b2, white pawn at c2, white queen at d2, white king at f2 and white bishop at g2. White bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.