r2q1b1r/nbp1k1pp/p2p4/1P2np2/PP1PBPP1/6K1/RB2P2P/1N1Q2NR b - - 1 17
FEN state: r2q1b1r/nbp1k1pp/p2p4/1P2np2/PP1PBPP1/6K1/RB2P2P/1N1Q2NR b - - 1 17 ; Best move: b7e4
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8 and black rook at h8. Black knight at a7, black bishop at b7, black pawn at c7, black king at e7, black pawn at g7 and black pawn at h7. Black pawn at a6 and black pawn at d6. White pawn at b5, black knight at e5 and black pawn at f5. White pawn at a4, white pawn at b4, white pawn at d4, white bishop at e4, white pawn at f4 and white pawn at g4. White king at g3. White rook at a2, white bishop at b2, white pawn at e2 and white pawn at h2. White knight at b1, white queen at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 17. Black to move.