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Subtraction and division cages https://www.calcudoku.org/forum/viewtopic.php?f=3&t=149 |
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Author: | pnm [ Mon Jan 20, 2014 9:57 am ] |
Post subject: | Re: Subtraction and division cages |
jpassaro wrote: Must it be positive 4, or can it potentially be -4 as well? It can be -4, but only if -4 is the target result of the cage. (so in that case it would have "-4-" as the clue) jpassaro wrote: For example, 0-1-3 = -4; could we use (0,1,3) as a solution for this cage? No, because here the target result is 4. Patrick |
Author: | nicow [ Wed Jan 22, 2014 12:41 pm ] |
Post subject: | Re: Subtraction and division cages |
@jpassaro: subtraction in a n-multicell cage is: take one of the cells, and subtract the other ones from it. So you have n solutions. For instance in a 3-cell cage there are 3 solutions: a - (b + c) or b - (a + c) or c - (a + b) "4-" is to be read as: the outcome is 4, en the way to do is '-'. You might put a comma in between as well: "4,-" |
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