Improve At Sudoku What To Do When You Get Stuck

Lesson : In Lesson 10 and 11 of my "lessons" series, I covered x wings and the swordfish. the XY wing Lesson : X-wing patterns appear often and can be used as a This puzzle can't be solved beyond a certain point without some creative…or strategic thinking….and if sudokuguy.com sudokuguy.com PLEASE NOTE. This