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 124
White.White to move and win a piece. Note. — The Point of Command and the points mate-rial are all contained in the same sides of tlie Rooks-quadrilateral. BASIC PROPOSITIONS. 101 Figure(e.)Black. … White. White to move and win a piece. Note. —The Point of Command is Whites Q 5 as thelogistic radii at Q R 4 do not intersect the centre or avertex of the 2:eometric symbol. 102 MAJOR TACTICS.
Chess
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