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 185
160 MAJOR TACTICS. EVOLUTION No. 37. FIGURE 141. Knight vs. Rook and Bishop. Black. … White. Whenever two adverse pieces are situated on the perimeter of a Knight's octagon, then if neither piece commands the centre point nor can support the other only by occupying another point on the perimeter of the said octagon, the given Knight, having to move, wins one of the adverse pieces.
Chess
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