r1bq1bnr/1k2pp2/2pp2p1/p1nP3p/1Pp4Q/N5PN/P2KPP1P/R4B1R b - - 1 16
FEN state: r1bq1bnr/1k2pp2/2pp2p1/p1nP3p/1Pp4Q/N5PN/P2KPP1P/R4B1R b - - 1 16 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black king at b7, black pawn at e7 and black pawn at f7. Black pawn at c6, black pawn at d6 and black pawn at g6. Black pawn at a5, black knight at c5, white pawn at d5 and black pawn at h5. White pawn at b4, black pawn at c4 and white queen at h4. White knight at a3, white pawn at g3 and white knight at h3. White pawn at a2, white king at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 16. Black to move.