1r1qkb2/2ppp2r/ppb1Q1pp/3P1p2/2Pn1P2/P3P1PP/3B3R/RN1K1BN1 b - - 6 18
FEN state: 1r1qkb2/2ppp2r/ppb1Q1pp/3P1p2/2Pn1P2/P3P1PP/3B3R/RN1K1BN1 b - - 6 18 ; Best move: c6a4
The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at c7, black pawn at d7, black pawn at e7 and black rook at h7. Black pawn at a6, black pawn at b6, black bishop at c6, white queen at e6, black pawn at g6 and black pawn at h6. White pawn at d5 and black pawn at f5. White pawn at c4, black knight at d4 and white pawn at f4. White pawn at a3, white pawn at e3, white pawn at g3 and white pawn at h3. White bishop at d2 and white rook at h2. White rook at a1, white knight at b1, white king at d1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 6. Full move number is 18. Black to move.