r2q1b1r/p2kp1pp/np6/5p2/Pn1p4/B2PpbPP/R1P2P1R/1NQ1KB2 w - - 0 21
FEN state: r2q1b1r/p2kp1pp/np6/5p2/Pn1p4/B2PpbPP/R1P2P1R/1NQ1KB2 w - - 0 21 ; Best move: a2b2
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black king at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black knight at a6 and black pawn at b6. Black pawn at f5. White pawn at a4, black knight at b4 and black pawn at d4. White bishop at a3, white pawn at d3, black pawn at e3, black bishop at f3, white pawn at g3 and white pawn at h3. White rook at a2, white pawn at c2, white pawn at f2 and white rook at h2. White knight at b1, white queen at c1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.