r1b1k1r1/pp1pb3/P1q2ppn/P1p2PPp/1N1pP2P/7B/2P1QK2/B2R2NR b - - 0 21
FEN state: r1b1k1r1/pp1pb3/P1q2ppn/P1p2PPp/1N1pP2P/7B/2P1QK2/B2R2NR b - - 0 21 ; Best move: f6g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at d7 and black bishop at e7. White pawn at a6, black queen at c6, black pawn at f6, black pawn at g6 and black knight at h6. White pawn at a5, black pawn at c5, white pawn at f5, white pawn at g5 and black pawn at h5. White knight at b4, black pawn at d4, white pawn at e4 and white pawn at h4. White bishop at h3. White pawn at c2, white queen at e2 and white king at f2. White bishop at a1, white rook at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.