rnbk2nr/3p4/pq2p3/1ppP2pp/1PB2pP1/N1b1PP1N/P1K3RP/RQB5 b - - 3 18
FEN state: rnbk2nr/3p4/pq2p3/1ppP2pp/1PB2pP1/N1b1PP1N/P1K3RP/RQB5 b - - 3 18 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at d7. Black pawn at a6, black queen at b6 and black pawn at e6. Black pawn at b5, black pawn at c5, white pawn at d5, black pawn at g5 and black pawn at h5. White pawn at b4, white bishop at c4, black pawn at f4 and white pawn at g4. White knight at a3, black bishop at c3, white pawn at e3, white pawn at f3 and white knight at h3. White pawn at a2, white king at c2, white rook at g2 and white pawn at h2. White rook at a1, white queen at b1 and white bishop at c1. Both players have exhausted their castles. Half move number is 3. Full move number is 18. Black to move.