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 137
While.White to move and queen a pawn. 114 MAJOR TACTICS. Figure 98. … White.White to move and queen a pawn. Demonstration, — A pawn queens without captureagainst an adverse Knight, if, in general, the Knightis situated (1) without the corresponding Knights octa-gon, or (2) within the corresponding Knights octagon,but without the Knights octagon of next lower…
Chess
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