2b1k1n1/r2p1ppr/p1n4p/1pp1p1q1/PPP3Pb/R1QPP3/4BP2/1NBK2NR w - - 5 16
FEN state: 2b1k1n1/r2p1ppr/p1n4p/1pp1p1q1/PPP3Pb/R1QPP3/4BP2/1NBK2NR w - - 5 16 ; Best move: a4b5
The current state of the chess board is: Black bishop at c8, black king at e8 and black knight at g8. Black rook at a7, black pawn at d7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at a6, black knight at c6 and black pawn at h6. Black pawn at b5, black pawn at c5, black pawn at e5 and black queen at g5. White pawn at a4, white pawn at b4, white pawn at c4, white pawn at g4 and black bishop at h4. White rook at a3, white queen at c3, white pawn at d3 and white pawn at e3. White bishop at e2 and white pawn at f2. White knight at b1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 16. White to move.