Fig. 13.—The Six Rows Puzzle.
THE SIX SQUARE PUZZLE.
Place twelve counters on a piece of slate or cardboard, so that they would be at the angles of six squares, as shown in M, in the accompanying diagram (Fig. 14). The puzzle then is to take away three counters, so that the remaining nine counters shall describe three squares only. The solution is shown in N, Fig. 14. The twelve counters form the six squares A, B, C, D, E, F, whereas upon the counters 1, 2, and 12 being removed the squares C, D, and E only are left.
Fig. 14.—The Six Square Problem—The Problem (m) and the Solution (n).
THE MAGIC OCTAGON.
Out of a piece of stiff cardboard, cut four of each of the three designs shown in Fig. 15, A, and so join them together that they form an octagon figure. The pieces numbered 1 are to be fitted together in the centre, the pieces 2 and 3 being placed alternately round the pieces numbered 1, after those pieces have been fitted together (Fig. 15, B).
Fig. 15.—The Magic Octagon—a, The Pieces; b, The Octagon.