스도쿠장인 - 정통 스도쿠

It does not provide the answer. It explains why that number is correct.

Hints in Sudoku apps usually just fill in the blanks with numbers and that's it. You learn nothing from using those hints once, and you have to press them again every time you get stuck. Sudoku Master's hints are divided into three stages.

Stage 1: It only tells you where to look. If you find the solution yourself at this stage, it does not count as using a hint.

Stage 2: It explains the technique, along with a small grid diagram.

Stage 3: It explains what the answer is.

■ 21 Techniques in Korean

From the Fixed Single to X-Wing, Swordfish, XY-Wing, Unique Square, Coloring (Chain), and even the Killer's 45 Rule.

You can read through the techniques in the dictionary beforehand, or you can download a separate practice board featuring just one technique.

The example boards in the dictionary are not handwritten; they are taken directly from the actual boards where the techniques were used.

■ Korean that looks natural

It distinguishes between "2 goes in" and "3 goes in." The entire explanation is aligned down to the particles, and

it is locked with a check.

■ 8 Board Types

Classic · Killer · Diagonal · Hyper · Jigsaw · Odd/Even · 6×6 · 16×16.

Difficulty is rated not by the number of empty spaces, but by "which technique is required to solve it to the end."

Therefore, difficult boards appear even with few empty spaces — those are the actual difficult boards.

■ 0 Ads · 0 Lives · 0 Payments

There is no mechanism that ends the board after three mistakes. Even if you make a wrong move, it remains as is, and if you want to go back,

"Check" tells you how many moves ago it went wrong.

■ Completely Offline

The puzzle is created on your phone without being downloaded from a server. It runs perfectly fine even in airplane mode or on the subway.

■ Others

Today's Puzzle and Consecutive Days · Weekly Challenge (7 Tasks) · Time Attack · Mastery by Technique · Home/Lock Screen Widgets · Apple Watch · Handoff (Play levels from iPhone on iPad) · Game Center Rankings ·

Dark Mode and 4 Level Themes · Large Font · Colorblindness Accommodation · Export Records.