Pro tip: Puzzle 129 almost always contains an X-Wing in the middle phase (rows 4-6, columns 4-6). Search for it aggressively.

Standard Sudoku puzzles are graded by difficulty based on the techniques required to solve them. Easy puzzles require "Hidden Singles." Medium puzzles require "Naked Pairs" and "Locked Candidates." Hard puzzles require "X-Wings" and "Skyscrapers."

"Sudoku 129 better" is almost certainly a player’s comparative note about puzzle #129 in a numbered set (e.g., from a book or app). The player finds that puzzle superior to others in the set, likely due to its logical elegance, satisfying difficulty, or lack of guesswork. Without additional context (e.g., which app or forum), this is the most coherent and practical interpretation.

: Best for those who want a massive volume of standard puzzles with polished features like highlighting duplicates and note-taking.

You cannot go from a casual solver to an expert overnight. The journey to being "129 better" involves three pillars:

Once you internalize the 129 methodology, what comes next? Are you the best?