r2k1br1/p1p1ppp1/b7/nB1p3p/Rp2nPqP/2P5/1PKP2P1/1NB3NR w - - 2 17
FEN state: r2k1br1/p1p1ppp1/b7/nB1p3p/Rp2nPqP/2P5/1PKP2P1/1NB3NR w - - 2 17 ; Best move: a4a5
The current state of the chess board is: Black rook at a8, black king at d8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at g7. Black bishop at a6. Black knight at a5, white bishop at b5, black pawn at d5 and black pawn at h5. White rook at a4, black pawn at b4, black knight at e4, white pawn at f4, black queen at g4 and white pawn at h4. White pawn at c3. White pawn at b2, white king at c2, white pawn at d2 and white pawn at g2. White knight at b1, white bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 17. White to move.