B1bqkbnr/p2p4/1p2p1p1/1N3pPp/n2P3P/P1p1PN2/1PP2P1R/R1BQK3 w Q - 4 16
FEN state: B1bqkbnr/p2p4/1p2p1p1/1N3pPp/n2P3P/P1p1PN2/1PP2P1R/R1BQK3 w Q - 4 16 ; Best move: b2b3
The current state of the chess board is: White bishop at a8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at d7. Black pawn at b6, black pawn at e6 and black pawn at g6. White knight at b5, black pawn at f5, white pawn at g5 and black pawn at h5. Black knight at a4, white pawn at d4 and white pawn at h4. White pawn at a3, black pawn at c3, white pawn at e3 and white knight at f3. White pawn at b2, white pawn at c2, white pawn at f2 and white rook at h2. White rook at a1, white bishop at c1, white queen at d1 and white king at e1. White queenside is the only castle move available. Half move number is 4. Full move number is 16. White to move.