Xwings, Swordfish, Jellyfish, Squirmbags Looks at strength of one type of candidate in N rows(location) to deduce strength Looks at strength of N candidates in N locations within a large container(s) toĭeduce strength of those N candidates in N cells Looks at strength of N candidates in N cells to deduce strength of those NĬandidates in N locations within a large container(s) To deduce strength of that candidate in location Technique definitions Unique Possibilities Finds singular strengths in any container Locked Candidates Looks at strength in location of one type of candidate in one large container A candidate with 3 or more possible locations within a house.A cell with 3 or more possible canidates.Set (strong inference set) that has more than one possible distinct partition. One native strong set Subscripts Used within forbidding chains to help clarify the partioning of a native strong Usually, Used in forbidding chains to contain a Boolean variable that partitions more than General definitions Almost Locked Set A set in a common large container with 1 degree of freedom Boolean variable Any statement limited to two values. This page, like the interstate highway system, is always under construction. If you keep focusing on the same square you can get stuck and frustrated, if you’re having trouble figuring one cage out, move on to something else.This page is nothing but a reference page for the sudoku blog.Make a note of all the numbers that might be in a box and erase them as you solve more squares. But with nine boxes of nine squares and nine possible numbers for each square there are A LOT of possibilities to remember. Killer Sudoku is all about elimination, whittling away all the numbers that DON’T belong until all your left with is the one that does.(There are no repeats allowed in a cage either) BUT if you already have a 3 in that box, then you know it’s got to be the 1, 4 combination since you can’t have duplicates. For example: if you’ve got a cage of two cells with a 5 in the corner you know it could contain a 1 and a 4 OR a 2 and a 3. No number can appear twice in the same line or 3×3 box. ![]() Once you start filling in numbers, you can use the basic Sudoku rules to help fill in the grid.If you have a square with three cages and one free square add up the cage values and subtract it from 45 and PRESTO you’ve got the value of the free square! (this works for lines as well).Since 1+2+3+4+5+6+7+8+9=45, you know that each row (and each square) has to add up to 45. ![]() A two cell cage with a seventeen in the corner must be 8 and 9. A three cell cage with a 6 in the corner has to be made of 1, 2 and 3. For example: A cage that covers three cells with a 24 in the corner has to be made of 9,8 and 7. Since you don’t have any numbers to start with, look for cages with only one possible solution.Diabolical!Īlice Jones’ Top Tips for solving a Killer Sudoku ![]() The numbers inside the cage must add up to the number in the corner, and no repeats. Instead you get dotted lines (‘cages’) around groups of boxes with a small number in their corners. Killer Sudoku is different because you don’t get any numbers to start you off. And each box must also have all the numbers 1-9 with no repeats. Killer Sudoku: The rules of Killer Sudoku are almost the same as regular Sudoku: Each line must include all the numbers 1-9 with no repeats.
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