r1bk2nr/6pp/ppn1p3/3p1p2/PPPP1qP1/2N1b2B/RB4KP/6NR b - - 1 21
FEN state: r1bk2nr/6pp/ppn1p3/3p1p2/PPPP1qP1/2N1b2B/RB4KP/6NR b - - 1 21 ; Best move: f4f2
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black knight at c6 and black pawn at e6. Black pawn at d5 and black pawn at f5. White pawn at a4, white pawn at b4, white pawn at c4, white pawn at d4, black queen at f4 and white pawn at g4. White knight at c3, black bishop at e3 and white bishop at h3. White rook at a2, white bishop at b2, white king at g2 and white pawn at h2. White knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move.