1nbq1k1r/1p1ppp1p/2p2bp1/2RPN3/pr1P1P1P/PP5R/2Q1PKP1/1NB2B2 w - - 7 17
FEN state: 1nbq1k1r/1p1ppp1p/2p2bp1/2RPN3/pr1P1P1P/PP5R/2Q1PKP1/1NB2B2 w - - 7 17 ; Best move: a3b4
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black king at f8 and black rook at h8. Black pawn at b7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at c6, black bishop at f6 and black pawn at g6. White rook at c5, white pawn at d5 and white knight at e5. Black pawn at a4, black rook at b4, white pawn at d4, white pawn at f4 and white pawn at h4. White pawn at a3, white pawn at b3 and white rook at h3. White queen at c2, white pawn at e2, white king at f2 and white pawn at g2. White knight at b1, white bishop at c1 and white bishop at f1. Both players have exhausted their castles. Half move number is 7. Full move number is 17. White to move.