Talk:24 game: Difference between revisions
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→unsolvable solutions for the 24 game: Clarify. (too many pronouns)
Thundergnat (talk | contribs) (→unsolvable solutions for the 24 game: Further exposition on digit reordering.) |
Thundergnat (talk | contribs) m (→unsolvable solutions for the 24 game: Clarify. (too many pronouns)) |
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:::Who said anything about REXX? Or even the actual task code? My point was: if say, 1678 is unsolvable, then so is 1687, 1768, 1786, 1867, 1876, 6178, 6187, 6718, 6781, 6817, 6871, 7168, 7186, 7618, 7681, 7816, 7861, 8167, 8176, 8617, 8671, 8716 & 8761, and there isn't any point in listing all of them '''unless the solver is only checking numbers with preserved order'''. Like I said, there is only a total of 495 unique combinations of 4 non-zero digits. Of those, 91 are unsolvable for 24. Even if you count all possible permutations of each combination, there are only 757 unsolvable "numbers". Not sure where you are getting the 1263 from. --[[User:Thundergnat|Thundergnat]] ([[User talk:Thundergnat|talk]]) 14:11, 5 January 2019 (UTC)
:::Some further exposition about digit reordering. OK, you say the REXX version preserves order because the instructions permit
:That being the case, there are only 495 unique combinations of 4 non-zero digits. This is ALL of them.
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