1nbq2nr/r2ppk2/1p1p1p1b/p5pP/PPP5/3PPP1B/4KQ1P/R1B3NR b - - 0 17
FEN state: 1nbq2nr/r2ppk2/1p1p1p1b/p5pP/PPP5/3PPP1B/4KQ1P/R1B3NR b - - 0 17 ; Best move: a5b4
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at d7, black pawn at e7 and black king at f7. Black pawn at b6, black pawn at d6, black pawn at f6 and black bishop at h6. Black pawn at a5, black pawn at g5 and white pawn at h5. White pawn at a4, white pawn at b4 and white pawn at c4. White pawn at d3, white pawn at e3, white pawn at f3 and white bishop at h3. White king at e2, white queen at f2 and white pawn at h2. White rook at a1, white bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 17. Black to move.