r1q4r/1ppn1kpp/3Ppp2/p2p4/2b2P2/B2QPN1P/P2PK1P1/R4B1R b - - 0 18
FEN state: r1q4r/1ppn1kpp/3Ppp2/p2p4/2b2P2/B2QPN1P/P2PK1P1/R4B1R b - - 0 18 ; Best move: c4d3
The current state of the chess board is: Black rook at a8, black queen at c8 and black rook at h8. Black pawn at b7, black pawn at c7, black knight at d7, black king at f7, black pawn at g7 and black pawn at h7. White pawn at d6, black pawn at e6 and black pawn at f6. Black pawn at a5 and black pawn at d5. Black bishop at c4 and white pawn at f4. White bishop at a3, white queen at d3, white pawn at e3, white knight at f3 and white pawn at h3. White pawn at a2, white pawn at d2, white king at e2 and white pawn at g2. White rook at a1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.