r1b2k1r/1pNp1pp1/n6p/p1p2PP1/2P4P/PR1p4/P2bPK2/2BQ1B1R w - - 0 21
FEN state: r1b2k1r/1pNp1pp1/n6p/p1p2PP1/2P4P/PR1p4/P2bPK2/2BQ1B1R w - - 0 21 ; Best move: c7a8
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at f8 and black rook at h8. Black pawn at b7, white knight at c7, black pawn at d7, black pawn at f7 and black pawn at g7. Black knight at a6 and black pawn at h6. Black pawn at a5, black pawn at c5, white pawn at f5 and white pawn at g5. White pawn at c4 and white pawn at h4. White pawn at a3, white rook at b3 and black pawn at d3. White pawn at a2, black bishop at d2, white pawn at e2 and white king at f2. White bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.