Talk:Dominoes: Difference between revisions

 
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==ignoring value symmetry==
Can you explain what "and finally considering values but ignoring value symmetry, i.e. transposing 5 and 4" means? --[[User:Petelomax|Pete Lomax]] ([[User talk:Petelomax|talk]]) 13:01, 17 November 2021 (UTC)<BR>
:Ah, did you mean placing each (non-double) both ways, eg 5-4 or 4-5? If so, that took me nearly fivesfive hours to twig... --[[User:Petelomax|Pete Lomax]] ([[User talk:Petelomax|talk]]) 17:53, 17 November 2021 (UTC)
:Considering the example of your own construction I meant that
1 4 2 2 0 1+5 0
+ + + + + +
6 1 2 3 4 6+4 3
 
2 6 0 2 3+5 5 6
+ + + + + +
6 3 5 0 5 1 6 0
+ +
4 2 1 0 4 0 6+6
+ + + +
4 4 2 0 5 3 1 3
+ + + +
1+1 5+2 5 3 3 4
:where I have replaced all 1's by 6 and all 6's by 1 in the input is essentially the same with the same set of solutions.
 
:Changing the input by swapping 1 and 6 in the first column:
14220650
66234143
21023551
13505610
42604011
44205363
66525334
:will result in a different solution.--[[User:Nigel Galloway|Nigel Galloway]] ([[User talk:Nigel Galloway|talk]]) 14:55, 18 November 2021 (UTC)
 
Also, there is apparently no "chaining" going on here, no need to match any adjacent tile, that could be made clearer. --[[User:Petelomax|Pete Lomax]] ([[User talk:Petelomax|talk]]) 15:13, 17 November 2021 (UTC)
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