r4bnr/p2np3/1qppkpBp/8/1pb2PpP/PP1P2P1/2PNP3/R1BQK1NR w - - 9 17
FEN state: r4bnr/p2np3/1qppkpBp/8/1pb2PpP/PP1P2P1/2PNP3/R1BQK1NR w - - 9 17 ; Best move: f4f5
The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black knight at d7 and black pawn at e7. Black queen at b6, black pawn at c6, black pawn at d6, black king at e6, black pawn at f6, white bishop at g6 and black pawn at h6. Black pawn at b4, black bishop at c4, white pawn at f4, black pawn at g4 and white pawn at h4. White pawn at a3, white pawn at b3, white pawn at d3 and white pawn at g3. White pawn at c2, white knight at d2 and white pawn at e2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 9. Full move number is 17. White to move.