r1b1kbn1/2p2p2/B1nqp1r1/6PP/NP1pP3/5P1N/RPPP3R/2BQK3 w q - 1 20
FEN state: r1b1kbn1/2p2p2/B1nqp1r1/6PP/NP1pP3/5P1N/RPPP3R/2BQK3 w q - 1 20 ; Best move: f3f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at c7 and black pawn at f7. White bishop at a6, black knight at c6, black queen at d6, black pawn at e6 and black rook at g6. White pawn at g5 and white pawn at h5. White knight at a4, white pawn at b4, black pawn at d4 and white pawn at e4. White pawn at f3 and white knight at h3. White rook at a2, white pawn at b2, white pawn at c2, white pawn at d2 and white rook at h2. White bishop at c1, white queen at d1 and white king at e1. Black queenside is the only castle move available. Half move number is 1. Full move number is 20. White to move.