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 46
White. Note. — The logistic radii of a piece always extendfrom the centre of its geometric symbol to the perimeter. LOGISTIC SYMBOLS. 23 LOGISTIC SYMBOL OF THE KING. Figure 19.Black. … Note.—The loo-istic radii of a piece always arestraight lines, and always take the form of verticals^horizontals, diagonals, or obliques. GEOMETRIC PLANES. Whenever the geometric symbols appertaining to oneor more kindred pieces and to one or more adversepieces are combined in the same evolution;…
Chess
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