doug3: After the first 3 or 4 I did not bother with the clues as they were dropping the pin at 7am and then posting the clue at 8am.
Used 2 iPads, with first iPad before 7am zoomed Data Hunt map down to cover all of NZ with 5 screenshots, after 7am with 2nd iPad zoomed to the same level as the screenshots and compared the numbers, this made it easy see where the extra pin was, no clues required.
Legend
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