Domino - Puzzles
1) Contents
This is the 4th issue of DOMINO PUZZLES, after a decade of absence.
10 years ago I thought it would be nice if I could do one puzzle every 3 months. Now my aims are more modest: one issue a year.
This issue contains 1 new dominosa, made up a while ago, and I am glad I finally get around to posting it here.
We have one old puzzle, composed by the famous British puzzler Henri Dudeney (1847-1930), which should be out o copyright now.
As a bonus, this issue contains a list of domino puzzles.
2) Dominosa
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5 |
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4 |
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2 |
6 |
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3 |
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3 |
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6 |
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3 |
4 |
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6 |
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5 |
4 |
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1 |
6 |
2 |
2 |
1 |
6 |
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4 |
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2 |
2 |
0 |
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6 |
6 |
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2 |
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5 |
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3) Henri Dudeney
The following puzzle was composed by Henry Dudeney:
In the illustration above you see 6 dominoes aranged in a straight line, according to the normal rules of the game: 4 against 5, 1 agianst 1, and so on.
There is one thing special: the sum of the spots on the succesive dominoes is 4, 5, 5, 7, 8, 9.
The puzzle is this:
In how many ways may we play six dominoes from left to right, so that we have 6 ascending numbers with a difference of 1?
4) Links
