1nb3nr/2qp2bp/4r3/pPp1p1kP/1P3p2/2PPP3/1B3QP1/1R2KBNR b K - 0 21
FEN state: 1nb3nr/2qp2bp/4r3/pPp1p1kP/1P3p2/2PPP3/1B3QP1/1R2KBNR b K - 0 21 ; Best move: g5f6
The current state of the chess board is: Black knight at b8, black bishop at c8, black knight at g8 and black rook at h8. Black queen at c7, black pawn at d7, black bishop at g7 and black pawn at h7. Black rook at e6. Black pawn at a5, white pawn at b5, black pawn at c5, black pawn at e5, black king at g5 and white pawn at h5. White pawn at b4 and black pawn at f4. White pawn at c3, white pawn at d3 and white pawn at e3. White bishop at b2, white queen at f2 and white pawn at g2. White rook at b1, 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 21. Black to move.