The major tactics of chess: a treatise on evolutions; the proper employment of the forces in strategic, tactical, and logistic planes (1898)
Young, Franklin Knowles, 1857- · Boston, Little, Brown and company · leaf 36
White. Note. — A piece always may reach the centre of itssub-geometric symbol in one move. GEOMETRIC SYMBOLS. 13 SUB-GEOMETIIIC SYMBOL OF THE KNIGHT. Figure 9. Black. … White. Note. — If the piece has the move, the sub-geometricsymbol is positive ; otherwise, it is negative. 14 MAJOR TACTICS. SUB-GEOMETRIC SYMBOL OF THE BISHOP.
Chess
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
