rn1q1knr/6b1/2p2ppp/pp1pp3/4PP1P/2P1PQK1/PP2N1PR/R1B2BN1 b - - 0 16
FEN state: rn1q1knr/6b1/2p2ppp/pp1pp3/4PP1P/2P1PQK1/PP2N1PR/R1B2BN1 b - - 0 16 ; Best move: d5e4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at f8, black knight at g8 and black rook at h8. Black bishop at g7. Black pawn at c6, black pawn at f6, black pawn at g6 and black pawn at h6. Black pawn at a5, black pawn at b5, black pawn at d5 and black pawn at e5. White pawn at e4, white pawn at f4 and white pawn at h4. White pawn at c3, white pawn at e3, white queen at f3 and white king at g3. White pawn at a2, white pawn at b2, white knight at e2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 16. Black to move.