Young, Franklin Knowles, 1857- [from old catalog] · Boston, Little, Brown, and company · leaf 145
White. 114 CHESS STRATEGETICS. A strategic horizon 4 is expressed by an oblique line,upon which are located tlie centres of three knightsoctagons, the extremities being either tactical keys orpoints of command in evolutions appertaining to theKt, and the central point being the strategic key.… … White. The oblique line is formed by the white points Q 2,K 4, and K B 6. The centre is the strategic key, andthe extremities are points of command in evolutionsappertaining to the Knight. STRATEGIC HORIZONS. 115 A strategic horizon 5 is expressed by the geometricsymbol of the B. Its sides are…
Chess
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