What two piece stand on both sides of the king in a chess game?
The Queen and Bishop both stand to the King's L/R sides .
Who is known as the king of chess?
The 'king' is the tallest and the 'most valuable' piece in
chess--when the king is trapped, the game is over. Both sides have
one king each, and it is the only back-rank piece that a pawn
cannot be promoted.