rn3bbr/p4k1p/B1p1P3/3n2p1/1P1p4/N4N2/R2Q2PP/2B1K2R b K - 0 21
FEN state: rn3bbr/p4k1p/B1p1P3/3n2p1/1P1p4/N4N2/R2Q2PP/2B1K2R b K - 0 21 ; Best move: f7e6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8, black bishop at g8 and black rook at h8. Black pawn at a7, black king at f7 and black pawn at h7. White bishop at a6, black pawn at c6 and white pawn at e6. Black knight at d5 and black pawn at g5. White pawn at b4 and black pawn at d4. White knight at a3 and white knight at f3. White rook at a2, white queen at d2, white pawn at g2 and white pawn at h2. White bishop at c1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.