1r3b1r/pb1pkpp1/n6p/1pqnP3/1PpP1pP1/K4B2/P1P4P/RNBQ2NR b - - 4 17
FEN state: 1r3b1r/pb1pkpp1/n6p/1pqnP3/1PpP1pP1/K4B2/P1P4P/RNBQ2NR b - - 4 17 ; Best move: c5b4
The current state of the chess board is: Black rook at b8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at d7, black king at e7, black pawn at f7 and black pawn at g7. Black knight at a6 and black pawn at h6. Black pawn at b5, black queen at c5, black knight at d5 and white pawn at e5. White pawn at b4, black pawn at c4, white pawn at d4, black pawn at f4 and white pawn at g4. White king at a3 and white bishop at f3. White pawn at a2, white pawn at c2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 17. Black to move.