r1bq1b1r/p1pp1k2/n4p1p/2P1pPp1/3P4/N4NP1/RP1BPQPR/4KB2 b - - 2 16
FEN state: r1bq1b1r/p1pp1k2/n4p1p/2P1pPp1/3P4/N4NP1/RP1BPQPR/4KB2 b - - 2 16 ; Best move: e5d4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7 and black king at f7. Black knight at a6, black pawn at f6 and black pawn at h6. White pawn at c5, black pawn at e5, white pawn at f5 and black pawn at g5. White pawn at d4. White knight at a3, white knight at f3 and white pawn at g3. White rook at a2, white pawn at b2, white bishop at d2, white pawn at e2, white queen at f2, white pawn at g2 and white rook at h2. White king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 16. Black to move.