Divided star

which can be reunited to form a perfect cross.

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No. LXI

This is a simple way by which the figure given can be divided by four straight cuts into four equal and similar parts—

Divided figure

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No. LXII

This is the way to draw twenty-two straight lines within the circle at right-angles to each other, so that they divide it into four similar parts—

Divided circle

and each part has three dots within its borders.

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No. LXIII

These diagrams show how the upper triangle is divided into five parts, which can be rearranged to form the equilateral triangle below.

Triangle

The originator of this ingenious novelty says, “The method of construction is not shown, but its application is general, and the result is easily verified by measurement.”

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No. LXVI

This is an arrangement of the twenty-seven counters in nine rows, six in a row, within the borders of an equilateral triangle.

Triangle

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No. LXVII

All the cards of one colour, when placed alternately, can be brought together in four moves, two at a time, thus—

A
  2
  3
  4
  5
  6
  7
  8

Image

Place two and three beyond eight;
Place five and six between one and four;
Place eight and two between four and seven;
Place one and five between seven and three.

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No. LXVIII

You can in a moment tell the number chosen on these cards, when you are told on which of them it appears,

I.   II.   III.   IV.
1 33 65 97   2 34 66 98   4 36 68 100   8 40 72 104
3 35 67 99   3 35 67 99   5 37 69 101   9 41 73 105
5 37 69 101   6 38 70 102   6 38 70 102   10 42 74 106
7 39 71 103   7 39 71 103   7 39 71 103   11 43 75 107
9 41 73 105   10 42 74 106   12 44 76 108   12 44 76 108
11 43 75 107   11 43 75 107   13 45 77 109   13 45 77 109
13 45 77 109   14 46 78 110   14 46 78 110   14 46 78 110
15 47 79 111   15 47 79 111   15 47 79 111   15 47 79 111
17 49 81 113   18 50 82 114   20 52 84 116   24 56 88 120
19 51 83 115   19 51 83 115   21 53 85 117   25 57 89 121
21 53 85 117   22 54 86 118   22 54 86 118   26 58 90 122
23 55 87 119   23 55 87 119   23 55 87 119   27 59 91 123
25 57 89 121   26 58 90 122   28 60 92 124   28 60 92 124
27 59 91 123   27 59 91 123   29 61 93 125   29 61 93 125
29 61 93 125   30 62 94 126   30 62 94 126   30 62 94 126
31 63 95 127   31 63 95 127   31 63 95 127   31 63 95 127
V.   VI.   VII.
16 48 80 112   32 48 96 112   64 80 96 112
17 49 81 113   33 49 97 113   65 81 97 113
18 50 82 114   34 50 98 114   66 82 98 114
19 51 83 115   35 51 99 115   67 83 99 115
20 52 84 116   36 52 100 116   68 84 100 116
21 53 85 117   37 53 101 117   69 85 101 117
22 54 86 118   38 54 102 118   70 86 102 118
23 55 87 119   39 55 103 119   71 87 103 119
24 56 88 120   40 56 104 120   72 88 104 120
25 57 89 121   41 57 105 121   73 89 105 121
26 58 90 122   42 58 106 122   74 90 106 122
27 59 91 123   43 59 107 123   75 91 107 123
28 60 92 124   44 60 108 124   76 92 108 124
29 61 93 125   45 61 109 125   77 93 109 125
30 62 94 126   46 62 110 126   78 94 110 126
31 63 95 127   47 63 111 127   79 95 111 127

Image

by adding together the numbers at the top left-hand corner of these.

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No. LXIX

This diagram shows that the postman can take a course which involves fewer turnings than that indicated, when he had to pass round eighteen corners.

Mail round

It will be seen that he has to turn only fifteen times.

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No. LXX

This shows how a square can be divided into three parts, so that these can be reunited to form No. 2 and No. 3 of the diagram.

Square
Three shapes

Try it with scissors and paper or cardboard.

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No. LXXI

               
               
               
       
               
               
               
               

Image

This position fulfils the conditions of the puzzle. Obviously it could not occur in actual play.

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No. LXXV

The dotted lines in this diagram show where the flag with a cross taken out from its centre must be cut, so that the two pieces can be rejoined to form a perfect flag.

Flag

The piece on the right is moved upward, and to the left.

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No. LXXVI

This is a way in which the eleven parts can be readjusted to form a square:—

Square

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No. LXXVIII

This shows the shortest course—

Hospital round

This track takes him completely round every block, passing only once round four of them.

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No. LXXIX

Here is a very simple and symmetrical arrangement, by which on a board of 36 squares twelve counters are so placed that there are two, and two only, on each line, column, and diagonal.

       
       
       
       

Image

There are other arrangements which fulfil the conditions.

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No. LXXXI

In this nest of triangles of five tiers there are 1196 separate triangles, or nearly double the number (653) of a similar nest of four tiers.

Triangles

In such a figure with 10,000 tiers there would be 6,992,965,420,332 different triangles!

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No. LXXXII

The match puzzle, in which eight matches set in a row are to be rearranged in four pairs, by passing one match over two four times—

Matches

is solved, if the matches are numbered 1, 2, 3, 4, 5, 6, 7, 8, by moving 4 to 7, 6 to 2, 1 to 3, and 5 to 8.

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No. LXXXIII

The lower diagram shows how, when three matches are removed from the four squares, the remaining nine can be readjusted to represent three squares—

Matches
Matches

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No. LXXXIV

This diagram shows how different arrangements of four matches are possible in all the thirty-six cells of the square.

Matches

In every case a whole number or a fraction is represented, with such signs or lines as are necessary, and only four matches are used.

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No. LXXXV

It will be seen from the diagram below that the sentence, when filled in as required, is “Rise to vote, sir.”

R I S E T O V O T E S I R
I I                   I I
S   S               S   S
E     E           E     E
T       T       T       T
O         O   O         O
V           V           V
O         O   O         O
T       T       T       T
E     E           E     E
S   S               S   S
I I                   I I
R I S E T O V O T E S I R

Image

As this sentence is a perfect palindrome, and reads alike from either end, it can be traced in a great number of different directions.

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No. LXXXVII

This subtraction sum may be very neatly worked, without reducing the distances to inches, thus:—

 
  miles   furlongs   rods   yards   feet   inches  
1 0 0 0 0 0
  7 39 5 1 5
  0 0 0 0 0 1  
 

Image

Instead of borrowing one foot, we borrow half-a-foot—i.e., 6 inches; taking 5 from the 6 we have 1 as a remainder; now carrying the 6 inches to the 1 foot, and borrowing half a yard, and subtracting, we have 0 as remainder; carrying the half-yard to the 5 yards, we borrow the full 512 yards, which are one rod, and proceed in the usual manner afterwards, with the result that is shown.

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No. LXXXIX

This is an arrangement of nine counters on the irregular board of 67 squares.

               
               
               
               
               
               
               
               
               

Image

No two counters are in the same row, column, or diagonal.

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No. XC

This is the arrangement of nine cards in ten rows, three in each row—

K
  Q
  K
                 
  A
  A
  A
 
                 
10
  K
  J

Image

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No. XCI

The following diagram shows how the two ladies and their squires represented by white Knights and black, and dressed to impersonate Light, Liberty, Love, and Learning, started from the four comer squares, and stepped a figure which exhibited at each pause a revolving square, and in three paces came together in the centre, by a course traced upon the lines of their combined monograms.

Chess moves

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No. XCII

The 5 maxims in these 36 cells—

tell you know tells knows tells he should not
do you think of does thinks of does is not good
believe you hear believes hears believes is false
spend you have spends has spends he needs
judge you see judges sees judges is not there
never all he who all he often what

Image

are disentangled by reading the lowest line with each of the upper ones in turn. Thus the first maxim runs:—“Never tell all you know, he who tells all he knows often tells what he should not,” and so on throughout.

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No. XCIII

The dislocated circle is solved by making a single cut through the dotted line shown in the diagram below, and join up the pieces.