r2k4/p2b1p1r/QqPpp3/3nb1pp/2PN4/5PPB/PB1P1K1P/1R4NR w - - 1 21
FEN state: r2k4/p2b1p1r/QqPpp3/3nb1pp/2PN4/5PPB/PB1P1K1P/1R4NR w - - 1 21 ; Best move: a6b6
The current state of the chess board is: Black rook at a8 and black king at d8. Black pawn at a7, black bishop at d7, black pawn at f7 and black rook at h7. White queen at a6, black queen at b6, white pawn at c6, black pawn at d6 and black pawn at e6. Black knight at d5, black bishop at e5, black pawn at g5 and black pawn at h5. White pawn at c4 and white knight at d4. White pawn at f3, white pawn at g3 and white bishop at h3. White pawn at a2, white bishop at b2, white pawn at d2, white king at f2 and white pawn at h2. White rook at b1, 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. White to move.