Y Wings are a fairly advanced Sudoku solving technique that allows you to eliminate candidates in particular rows or columns of the grid. This is why it's known as a candidate eliminator strategy. Similar to the X Wing strategy , Y Wings involves identifying a particular pattern of candidates in the grid but unlike X Wing, it only involves.. This is an example of a Sudoku grid where we can apply the Y-Wing technique. If cell A was filled with the value '5'.. When looking for Y-Wing situations, you are looking for, Two cells (called 'B' and 'C') with exactly one shared candidate (call this 'X'), and exactly one different candidate (call these 'Y' and 'Z')..
Here is a classic Y-Wing beginning with the hinge at C4. If C4 is a 6 then C1 must be a 4. Otherwise if C4 is an 8 then G4 is a 4. Either way the far corner at G1 can't be a 4. Fig. 19.4. This example starting with the hinge at A8 removes four 8's from the first two rows.. Y-wing - sudoku technique. The "Y-Wing" method is a pretty advanced way of solving Sudoku puzzles. It's a good fit for experts who are up for challenging themselves with hard Sudoku puzzles. The "Y-Wing" method is pretty similar to the "X-Wing" method. The main difference is that it uses three corners instead of four. Let's take a look at an.