r1q1kb2/p2ppp1r/n7/2pb2Pp/1pP1n3/5QP1/PP1P1KBP/RNB3NR w q - 0 16
FEN state: r1q1kb2/p2ppp1r/n7/2pb2Pp/1pP1n3/5QP1/PP1P1KBP/RNB3NR w q - 0 16 ; Best move: f2e1
The current state of the chess board is: Black rook at a8, black queen at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at d7, black pawn at e7, black pawn at f7 and black rook at h7. Black knight at a6. Black pawn at c5, black bishop at d5, white pawn at g5 and black pawn at h5. Black pawn at b4, white pawn at c4 and black knight at e4. White queen at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at d2, white king at f2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 16. White to move.