Medium, 100 puzzles

$5

Adds locked candidates and naked pairs. Still entirely logical, but you will need to look at a box and reason about where a digit cannot go.

Puzzles

100

Medium

100

Pages

118 per device

Files

Paper and Paper Pro

Solutions

Included, linked both ways

Downloads work forever. Your pack is stored as a seed rather than a file, so an expired copy is rebuilt byte for byte identical.