r1bnkbnr/2pp3p/p4qp1/2P1p3/1p3p2/NP2P1PB/PB1P3P/R1Q1K1R1 w Q - 5 16
FEN state: r1bnkbnr/2pp3p/p4qp1/2P1p3/1p3p2/NP2P1PB/PB1P3P/R1Q1K1R1 w Q - 5 16 ; Best move: a3c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at d7 and black pawn at h7. Black pawn at a6, black queen at f6 and black pawn at g6. White pawn at c5 and black pawn at e5. Black pawn at b4 and black pawn at f4. White knight at a3, white pawn at b3, white pawn at e3, white pawn at g3 and white bishop at h3. White pawn at a2, white bishop at b2, white pawn at d2 and white pawn at h2. White rook at a1, white queen at c1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 5. Full move number is 16. White to move.