r4b1r/pk1b1ppp/7P/QpPpNn2/4P3/B1P3P1/P2P1P2/2R1KBNR b K - 0 20
FEN state: r4b1r/pk1b1ppp/7P/QpPpNn2/4P3/B1P3P1/P2P1P2/2R1KBNR b K - 0 20 ; Best move: f8c5
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black pawn at a7, black king at b7, black bishop at d7, black pawn at f7, black pawn at g7 and black pawn at h7. White pawn at h6. White queen at a5, black pawn at b5, white pawn at c5, black pawn at d5, white knight at e5 and black knight at f5. White pawn at e4. White bishop at a3, white pawn at c3 and white pawn at g3. White pawn at a2, white pawn at d2 and white pawn at f2. White rook at c1, white king at e1, white bishop at f1, 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.