r4b1r/p3p2p/n1b1k1pn/1Bp5/1q2N2P/P1P5/3P1PP1/R1BQK2R w - - 0 16
FEN state: r4b1r/p3p2p/n1b1k1pn/1Bp5/1q2N2P/P1P5/3P1PP1/R1BQK2R w - - 0 16 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at e7 and black pawn at h7. Black knight at a6, black bishop at c6, black king at e6, black pawn at g6 and black knight at h6. White bishop at b5 and black pawn at c5. Black queen at b4, white knight at e4 and white pawn at h4. White pawn at a3 and white pawn at c3. White pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 16. White to move.