6
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Goal of Hidato:

Fill in a grid with a series of consecutive numbers that connect each other horizontally, vertically, or diagonally.

Yesterday I posted New record for minimally clued 5x5 Hidato, asking for any 4-clue 5x5 Hidato with a unique solution.

However, none of the answers (or trivial transformations thereof) so far has an extra property my puzzle has: all 4 clues are single digit numbers, i.e. the four numbers given are between 1 and 9 inclusive. Can you find one?

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1 Answer 1

5
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     9  .  .  .  .
     1  .  .  .  .
     .  .  .  .  .
     .  .  .  5  .
     .  .  .  4  .
 

with verified unique solution

     9  8 19 20 21
     1 10  7 18 22
    11  2 17  6 23
    12 16  3  5 24
    13 14 15  4 25
 

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1
  • 2
    $\begingroup$ That was the exact puzzle I had, up to reflection. $\endgroup$
    – Bubbler
    Mar 8 at 2:21

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