I was able to solve it comfortably by XYZ technique first, and then applying the technique of XY chain without resorting to Trial and Error to determine the location of #6 in Box #8.
Thank you, I play completely spontaneously without knowing xyz technique but I can solve problems like that easily, I think solving Sudoku means finding the right number and that is the purpose of playing Sudoku Thank you very much . Best regards
Bài guair này rất hay.
I was able to solve it comfortably by XYZ technique first, and then applying the technique of XY chain without resorting to Trial and Error to determine the location of #6 in Box #8.
Thank you, I play completely spontaneously without knowing xyz technique but I can solve problems like that easily, I think solving Sudoku means finding the right number and that is the purpose of playing Sudoku Thank you very much .
Best regards