Bn2k1r1/3ppNb1/b4npp/pp6/4P1P1/PQP4P/1P1P3q/RNB1K3 b - - 0 18
FEN state: Bn2k1r1/3ppNb1/b4npp/pp6/4P1P1/PQP4P/1P1P3q/RNB1K3 b - - 0 18 ; Best move: a5a4
The current state of the chess board is: White bishop at a8, black knight at b8, black king at e8 and black rook at g8. Black pawn at d7, black pawn at e7, white knight at f7 and black bishop at g7. Black bishop at a6, black knight at f6, black pawn at g6 and black pawn at h6. Black pawn at a5 and black pawn at b5. White pawn at e4 and white pawn at g4. White pawn at a3, white queen at b3, white pawn at c3 and white pawn at h3. White pawn at b2, white pawn at d2 and black queen at h2. White rook at a1, white knight at b1, white bishop at c1 and white king at e1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.