Henry Ernest Dudeney/Modern Puzzles/154 - The Way to Tipperary/Solution
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Modern Puzzles by Henry Ernest Dudeney: $154$
- The Way to Tipperary
- The popular bard assures us that "it's a long way to Tipperary."
- Look at the accompanying chart and see if you can discover the best way from London to "the sweetest girl I know."
- The lines represent stages from town to town, and it is necessary to get from London to Tipperary in an even number of stages.
- You will find no difficulty getting there in $3$, $5$, $7$, $9$ or $11$ stages,
- but these are odd numbers and will not do.
- The reason that they are odd is that they all omit the sea passage, a very necessary stage.
- If you get to your destination in an even number of stages, it will be because you have crossed the Irish Sea.
- Which stage is the Irish Sea?
Solution
The Irish Sea is the line marked red.
The thick lines illustrate the best (as in shortest) route.
Sources
- 1926: Henry Ernest Dudeney: Modern Puzzles ... (previous) ... (next): Solutions: $154$. -- The Way to Tipperary
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Answers: $411$. The Way to Tipperary