2bqk1nr/rpp5/pn1p1b2/P2p1P1p/2P5/NP4BB/R3PP1P/Q3K1NR b K - 0 20
FEN state: 2bqk1nr/rpp5/pn1p1b2/P2p1P1p/2P5/NP4BB/R3PP1P/Q3K1NR b K - 0 20 ; Best move: f6a1
The current state of the chess board is: Black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at b7 and black pawn at c7. Black pawn at a6, black knight at b6, black pawn at d6 and black bishop at f6. White pawn at a5, black pawn at d5, white pawn at f5 and black pawn at h5. White pawn at c4. White knight at a3, white pawn at b3, white bishop at g3 and white bishop at h3. White rook at a2, white pawn at e2, white pawn at f2 and white pawn at h2. White queen at a1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 20. Black to move.