Domino - Puzzles
1) Contents
This is the 5th issue of DOMINO PUZZLES. The 4th issue appeared after a decade of absence.
In addition, there is one old puzzle, composed by the famous British puzzler Henri Dudeney (1847-1930), which should by now be out of copyright.
2) Dominosa
This issue contains 1 new dominosa, made up a while ago, and I am glad I finally get around to posting it here.
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2 |
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5 |
3 |
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2 |
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0 |
5 |
2 |
5 |
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4 |
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6 |
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4 |
2 |
6 |
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4 |
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3 |
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5 |
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6 |
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6 |
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3 |
3 |
6 |
6 |
5 |
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4 |
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6 |
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5 |
5 |
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3) Classic puzzle
As in the previous isue, here is a classic by that famous British puzzler Henry Dudeney:
In the figure above 5 dominoes have been playes as in a normal game: 1 against 1, 21 agianst 2, and so on.
The sum of the spots on the two out bones is 5, and that is also the sum of the spots on the 3 inner doninoes. There are three other arrangements with a sum of 5.
The puzzle is this:
How many arrangements are there with 5 doninoes in this pattern, with the sum of the three inner and tyhe sum of the two outer bones both being 6?
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