r3qk2/1bppn3/pP1bp1p1/3N1p1r/2P2P2/BP2P1PR/3PK3/R2QnB2 w - - 5 21
FEN state: r3qk2/1bppn3/pP1bp1p1/3N1p1r/2P2P2/BP2P1PR/3PK3/R2QnB2 w - - 5 21 ; Best move: a3d6
The current state of the chess board is: Black rook at a8, black queen at e8 and black king at f8. Black bishop at b7, black pawn at c7, black pawn at d7 and black knight at e7. Black pawn at a6, white pawn at b6, black bishop at d6, black pawn at e6 and black pawn at g6. White knight at d5, black pawn at f5 and black rook at h5. White pawn at c4 and white pawn at f4. White bishop at a3, white pawn at b3, white pawn at e3, white pawn at g3 and white rook at h3. White pawn at d2 and white king at e2. White rook at a1, white queen at d1, black knight at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 5. Full move number is 21. White to move.