q1b1rknr/p1p1pp2/n6b/Np4pp/1P2P1P1/8/P1PPQP1P/R1B1K1RB w Q - 6 16
FEN state: q1b1rknr/p1p1pp2/n6b/Np4pp/1P2P1P1/8/P1PPQP1P/R1B1K1RB w Q - 6 16 ; Best move: e4e5
The current state of the chess board is: Black queen at a8, black bishop at c8, black rook at e8, black king at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7 and black pawn at f7. Black knight at a6 and black bishop at h6. White knight at a5, black pawn at b5, black pawn at g5 and black pawn at h5. White pawn at b4, white pawn at e4 and white pawn at g4. White pawn at a2, white pawn at c2, white pawn at d2, white queen at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white rook at g1 and white bishop at h1. White queenside is the only castle move available. Half move number is 6. Full move number is 16. White to move.