KKt5. The King, being in check, must move, which leaves the Queen at the mercy of the adverse Knight.
Gambit. A voluntary surrender, or proffer, of a Piece or Pawn by the first player at the early part of the game, with a view to subsequent advantage.
Game. In addition to its ordinary meaning the term has a technical meaning which is explained under "Opening."
Interpose. To move a Piece or Pawn between an attacked and attacking Piece or Pawn. The term is frequently used in connection with the King. When he is in check, and a Piece or Pawn is placed between him and the attacking Piece or Pawn, that Piece or Pawn is said to be "interposed."
Illegal Move. A move which, while not in opposition to the fundamental laws of movement, is still contradictory to the ordinary rules of play, under the particular circumstances of the case, such as moving out of turn; moving an adverse Piece or Pawn; castling to avoid check, or cast-
