This mode is built for players who want to solve without guessing. The puzzle surface keeps the full 9x9 experience, while hints focus on naked singles and hidden singles so each move can be explained clearly.
What to practice here
Scan rows, columns, and boxes before entering a number.
Use notes only after checking the obvious placements first.
Read each hint as a reason, not just as an answer.
A simple 10 minute routine
Start by filling every number that is already forced.
When stuck, request one hint and compare it with your own scan.
Restart the same puzzle once after finishing to build recognition speed.