Two-String Kite
Advanced Logic23 / 32A row string and a column string tied in one box.
Take a row where a digit has exactly two spots, and a column where it also has exactly two — with one end of each string meeting inside the same box. The box ties the strings together like a kite knot.
The box can satisfy at most one string end, so at least one of the two free ends must hold the digit. The single cell at the crossing of the free ends sees both — and loses the digit.
See it in action
Step 1 of 4
The setup
Look for a digit with a two-spot row and a two-spot column whose ends share a box (but not a cell). The elimination sits where the free row end's column meets the free column end's row. Step through this real position to see it happen.
Practice
Find the Two-String Kite and remove its digit from the cell seeing both free ends.
Drill 1 of 29Tap a cell, then the candidate digit you want to remove.