How to Cut Your Completion Time

Practical tips for completing the picture faster.

The first step to speed is an eye that spots overlap instantly. Compare each line's block length with the line length and fill in all the overlapping cells first, and your time drops sharply.

The habit of rescanning crossing lines every time you confirm a cell is, in the end, the fastest. Don't cling to one line for long — look again at the changed lines first.

Don't put off marking X. Making the empty cells clear reduces the time lost undoing wrongly filled cells, so you finish faster overall.