Changes

(ii) The value of the squares "[[Attacks|attacked]]" by White's pieces. A typical square scores 1, one of the four central squares 2, and a square adjacent to the Black King 3. Each White piece is considered in turn, and the value of the squares to which that piece might legally move (whether or not that square is occupied by a piece) added up. Thus an opening move of e4 increases the value by 8 (4 new squares attacked by the Bishop, 3 by the Queen, plus 1 because the Pawn now attacks a central square). Three other opening moves, e3, Nf3, Nc3, also score plus 8, and no more scores more. In such cases SOMA decides by tossing a coin.