rq2kbnr/2pnpp2/p1b3p1/Pp1p3p/1P2B3/RQP1PP1P/3P2P1/1NBK2NR w q - 1 16
FEN state: rq2kbnr/2pnpp2/p1b3p1/Pp1p3p/1P2B3/RQP1PP1P/3P2P1/1NBK2NR w q - 1 16 ; Best move: e4d5
The current state of the chess board is: Black rook at a8, black queen at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black knight at d7, black pawn at e7 and black pawn at f7. Black pawn at a6, black bishop at c6 and black pawn at g6. White pawn at a5, black pawn at b5, black pawn at d5 and black pawn at h5. White pawn at b4 and white bishop at e4. White rook at a3, white queen at b3, white pawn at c3, white pawn at e3, white pawn at f3 and white pawn at h3. White pawn at d2 and white pawn at g2. White knight at b1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 16. White to move.