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 136
from queening. BASIC PROPOSITIONS. 113 PROPOSITION VIII.—Theorem. Given a Square of Progression Positive (S. P. P.)opposed to a knights octagon, then, if the DisturbingFactor (D. P.) is situated without the correspondino-Knights octagon, or vs^ithin the corresponding Knightsoctagon, but without the… … While.White to move and queen a pawn. 114 MAJOR TACTICS. Figure 98.
Chess
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