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"Adjudged the best two-move problem of the British Chess Association Tourney, 1872). White to play and mate in two moves." — Encyclopedia Britanica, 1893

Chess Strategy

"Adjudged the best two-move problem of the British Chess Association Tourney, 1872). White to play and…

"The prize problem of the Cambridge Tourney, 1860. White to play and mate in three moves." — Encyclopedia Britanica, 1893

Chess Strategy

"The prize problem of the Cambridge Tourney, 1860. White to play and mate in three moves." — Encyclopedia…

"One of the first-prize set of the Bristol Tourney, 1861. White to play and mate in three moves." — Encyclopedia Britanica, 1893

Chess Strategy

"One of the first-prize set of the Bristol Tourney, 1861. White to play and mate in three moves." —…

"One of the second-prize set of the Pasris Tourney, 1867. White to play and mate in four moves." — Encyclopedia Britanica, 1893

Chess Strategy

"One of the second-prize set of the Pasris Tourney, 1867. White to play and mate in four moves." —…

"One of the first-prize set of the British Chess Association Tourney, 1872, and also adjudged the best four move problem of the Tourney. White to play and mate in four moves." — Encyclopedia Britanica, 1893

Chess Strategy

"One of the first-prize set of the British Chess Association Tourney, 1872, and also adjudged the best…

"One of the first-prize set of the British Chess Association Tourney, 1862, and also adjudged the best problem in the Tourney. White to play and mate in five moves." — Encyclopedia Britanica, 1893

Chess Strategy

"One of the first-prize set of the British Chess Association Tourney, 1862, and also adjudged the best…

Illustration of the projection of point P as it moves around a vertical circle of radius 3 in. in a counterclockwise direction. It start with the radius in a horizontal position and moves with an angular velocity of one revolution in 10 seconds.

Projection of Points in Circular Motion

Illustration of the projection of point P as it moves around a vertical circle of radius 3 in. in a…

Illustration of the projection of point P as it moves around a vertical circle of radius 2 ft. in a counterclockwise direction. It start with the radius in a horizontal position and moves with an angular velocity of one revolution in .5 seconds.

Projection of Points in Circular Motion

Illustration of the projection of point P as it moves around a vertical circle of radius 2 ft. in a…

Illustration showing a line that moves so that its ends constantly touch two fixed lines which are perpendicular to each other. Locus of the midpoint.

Circle Made by Ends of a Line Touching Two Fixed Lines Perpendicular to Each Other

Illustration showing a line that moves so that its ends constantly touch two fixed lines which are perpendicular…