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María Lucía Uribe´s recent match-moving puzzle (Move matches and make largest possible number) begs for the following matter to be settled once and for all.

If each of the numbers from 100 to 999 is written using matches, such as 907 below, and I am allowed to move three of any number´s matches, with which number can I come up with the largest resulting possible number?

Below are admissible shapes for seven ramaining digits.

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Bernardo Recamán Santos
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3 Answers3

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Ok, let's get the ball rolling:

Moving three matches

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Moving four (not actually asked here but in the referenced Q)

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Paul Panzer
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Here's what I was thinking

990 --> 7^997
enter image description here

MacGyver88
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Sorry for not drawing matches, only numbers:

Starting with the three digit number 444, then moving three matches, I get the six digit number 111111

Enigma
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