1nbq1knr/r2p1pb1/8/pQ2p1pp/3PB1P1/7P/PP1NPP2/R1BK2NR w - - 4 16
FEN state: 1nbq1knr/r2p1pb1/8/pQ2p1pp/3PB1P1/7P/PP1NPP2/R1BK2NR w - - 4 16 ; Best move: b5b8
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black king at f8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at d7, black pawn at f7 and black bishop at g7. Black pawn at a5, white queen at b5, black pawn at e5, black pawn at g5 and black pawn at h5. White pawn at d4, white bishop at e4 and white pawn at g4. White pawn at h3. White pawn at a2, white pawn at b2, white knight at d2, white pawn at e2 and white pawn at f2. White rook at a1, 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 4. Full move number is 16. White to move.