Kt from R 3—Kt 5P × Kt B—B 4P × B P—Q 4 ch.P × P en pas R—B 5 mate.
if
R × B R—Kt 5 ch.any mates accordingly.
and if
Q—K 6 Kt—Q 6Q—Kt 3 R—B 5 ch.Q × R Kt—B 7 mate.
SCIENCE AT PLAY
No. LVIII.—THE GEARED WHEELS
The arrow head at the top of a small wheel with ten teeth, which is geared into and revolved round a large fixed wheel with forty teeth, will point directly upwards five times in its course round the large wheel. Four of these turnings are due to the rotation of the small wheel on its own axis, and one of them results from its revolution round the large wheel.