1n2kbnr/r3p3/pQ1p3p/1p6/5Pb1/2qP1B1N/2P4P/R1B2K1R w k - 0 21
FEN state: 1n2kbnr/r3p3/pQ1p3p/1p6/5Pb1/2qP1B1N/2P4P/R1B2K1R w k - 0 21 ; Best move: f3g4
The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7 and black pawn at e7. Black pawn at a6, white queen at b6, black pawn at d6 and black pawn at h6. Black pawn at b5. White pawn at f4 and black bishop at g4. Black queen at c3, white pawn at d3, white bishop at f3 and white knight at h3. White pawn at c2 and white pawn at h2. White rook at a1, white bishop at c1, white king at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. White to move.