THE ROOK'S TOUR.

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Math Puzzle Math Puzzle Questions The Guarded Chessboard
12,925 views
WATER, GAS, AND ELECTRICITY.

There are some half-dozen puzzles, as old as the hills, that are perpetually cropping up, and there is hardly a month in the year that does not bring inquiries as to their solution...

Math Puzzle Math Puzzle Questions Unicursal and Route Problems
12,528 views
THE SIX FROGS.

The six educated frogs in the illustration are trained to reverse their order, so that their numbers shall read 6, 5, 4, 3, 2, 1, with the blank square in its present position. The...

Math Puzzle Math Puzzle Questions Moving Counter Problem
12,296 views
FIVE JEALOUS HUSBANDS.

During certain local floods five married couples found themselves surrounded by water, and had to escape from their unpleasant position in a boat that would only hold three persons...

Math Puzzle Math Puzzle Questions Measuring, Weight, and Packing Puzzles.
11,878 views
KING ARTHUR'S KNIGHTS.

King Arthur sat at the Round Table on three successive evenings with his knights--Beleobus, Caradoc, Driam, Eric, Floll, and Galahad--but on no occasion did any person have as his...

Math Puzzle Math Puzzle Questions Combination and Group Problems
11,631 views
HOW TO DRAW AN OVAL.

Can you draw a perfect oval on a sheet of paper with one sweep of the compasses? It is one of the easiest things in the world when you know how.

Math Puzzle Math Puzzle Questions Patchwork Puzzles
11,459 views
THE HONEYCOMB PUZZLE.

Here is a little puzzle with the simplest possible conditions. Place the point of your pencil on a letter in one of the cells of the honeycomb, and trace out a very familiar prover...

Math Puzzle Math Puzzle Questions Unicursal and Route Problems
11,359 views
The Haberdasher's Puzzle

Many attempts were made to induce the Haberdasher, who was of the party, to propound a puzzle of some kind, but for a long time without success. At last, at one of the Pilgrims' st...

Math Puzzle Math Puzzle Questions CANTERBURY PUZZLES
10,868 views
THE SILK PATCHWORK

The lady members of the Wilkinson family had made a simple patchwork quilt, as a small Christmas present, all composed of square pieces of the same size, as shown in the illustrati...

Math Puzzle Math Puzzle Questions GREEK CROSS PUZZLES
10,597 views
THE BOARD IN COMPARTMENTS.

We cannot divide the ordinary chessboard into four equal square compartments, and describe a complete tour, or even path, in each compartment. But we may divide it into four compar...

Math Puzzle Math Puzzle Questions The Guarded Chessboard
9,505 views
A MAGIC SQUARE OF COMPOSITES.

As we have just discussed the construction of magic squares with prime numbers, the following forms an interesting companion problem. Make a magic square with nine consecutive comp...

Math Puzzle Math Puzzle Questions Magic Squares Problem.
9,017 views
A QUEER THING IN MONEY.

It will be found that L66, 6s. 6d. equals 15,918 pence. Now, the four 6's added together make 24, and the figures in 15,918 also add to 24. It is a curious fact that there is only...

Math Puzzle Math Puzzle Questions Money Puzzles
8,802 views
THE TROUBLESOME EIGHT.

Nearly everybody knows that a "magic square" is an arrangement of numbers in the form of a square so that every row, every column, and each of the two long diagonals adds up alike....

Math Puzzle Math Puzzle Questions Magic Squares Problem.
8,795 views
ANCIENT CHINESE PUZZLE.

My next puzzle is supposed to be Chinese, many hundreds of years old, and never fails to interest. White to play and mate, moving each of the three pieces once, and once only.

Math Puzzle Math Puzzle Questions The Guarded Chessboard
8,766 views
THE HYMN-BOARD POSER.

The worthy vicar of Chumpley St. Winifred is in great distress. A little church difficulty has arisen that all the combined intelligence of the parish seems unable to surmount. Wha...

Math Puzzle Math Puzzle Questions Unclassified Problems.
8,744 views
THOSE FIFTEEN SHEEP.

A certain cyclopaedia has the following curious problem, I am told: "Place fifteen sheep in four pens so that there shall be the same number of sheep in each pen." No answer whatev...

Math Puzzle Math Puzzle Questions Combination and Group Problems
8,729 views
THE BICYCLE THIEF.

Here is a little tangle that is perpetually cropping up in various guises. A cyclist bought a bicycle for L15 and gave in payment a cheque for L25. The seller went to a neighbourin...

Math Puzzle Math Puzzle Questions Money Puzzles
8,701 views
YOUTHFUL PRECOCITY.

The precocity of some youths is surprising. One is disposed to say on occasion, "That boy of yours is a genius, and he is certain to do great things when he grows up;" but past exp...

Math Puzzle Math Puzzle Questions Money Puzzles
8,631 views
THE GRASSHOPPER PUZZLE.

It has been suggested that this puzzle was a great favourite among the young apprentices of the City of London in the sixteenth and seventeenth centuries. Readers will have noticed...

Math Puzzle Math Puzzle Questions Moving Counter Problem
8,449 views
A POST-OFFICE PERPLEXITY.

In every business of life we are occasionally perplexed by some chance question that for the moment staggers us. I quite pitied a young lady in a branch post-office when a gentlema...

Math Puzzle Math Puzzle Questions Money Puzzles
8,414 views
THE PEBBLE GAME.

Here is an interesting little puzzle game that I used to play with an acquaintance on the beach at Slocomb-on-Sea. Two players place an odd number of pebbles, we will say fifteen,...

Math Puzzle Math Puzzle Questions Puzzle Games.
8,372 views
THE TETHERED GOAT.

Here is a little problem that everybody should know how to solve. The goat is placed in a half-acre meadow, that is in shape an equilateral triangle. It is tethered to a post at on...

Math Puzzle Math Puzzle Questions Patchwork Puzzles
8,218 views
Crossing The Moat

I was now face to face with the castle moat, which was, indeed, very wide and very deep. Alas! I could not swim, and my chance of escape seemed of a truth hopeless, as, doubtless,...

Math Puzzle Math Puzzle Questions THE STRANGE ESCAPE OF THE KING'S JESTER
8,204 views
THE FOUR SEVENS.

In the illustration Professor Rackbrane is seen demonstrating one of the little posers with which he is accustomed to entertain his class. He believes that by taking his pupils off...

Math Puzzle Math Puzzle Questions Money Puzzles
8,156 views
THE "T" CARD PUZZLE.

An entertaining little puzzle with cards is to take the nine cards of a suit, from ace to nine inclusive, and arrange them in the form of the letter "T," as shown in the illustrati...

Math Puzzle Math Puzzle Questions Problems Concerning Games.
8,112 views
AN EASY DISSECTION PUZZLE.

First, cut out a piece of paper or cardboard of the shape shown in the illustration. It will be seen at once that the proportions are simply those of a square attached to half of a...

Math Puzzle Math Puzzle Questions Various Dissection Puzzles
7,926 views
SIMPLE MULTIPLICATION.

If we number six cards 1, 2, 4, 5, 7, and 8, and arrange them on the table in this order:-- 1 4 2 8 5 7 We can demonstrate that in order to multiply by 3 all that is necessary is t...

Math Puzzle Math Puzzle Questions Money Puzzles
7,826 views
THE CARD FRAME PUZZLE.

In the illustration we have a frame constructed from the ten playing cards, ace to ten of diamonds. The children who made it wanted the pips on all four sides to add up alike, but...

Math Puzzle Math Puzzle Questions Problems Concerning Games.
7,796 views
BOARDS WITH AN ODD NUMBER OF SQUARES.

We will here consider the question of those boards that contain an odd number of squares. We will suppose that the central square is first cut out, so as to leave an even number of...

Math Puzzle Math Puzzle Questions Chessboard Problems
7,710 views
PAINTING THE LAMP-POSTS.

Tim Murphy and Pat Donovan were engaged by the local authorities to paint the lamp-posts in a certain street. Tim, who was an early riser, arrived first on the job, and had painted...

Math Puzzle Math Puzzle Questions Money Puzzles
7,559 views