SUDOKU
ExpertUsefulness: Medium

Two-String Kite

A single-digit pattern using one row conjugate pair and one column conjugate pair that meet in a shared box. The two loose ends eliminate the digit from the cell they both see.

A row string and column string meet in a box; their ends eliminate a shared peer.

patterneliminatesolved

How to spot it

  1. 1Find a conjugate pair in a row and one in a column for the same digit.
  2. 2They must connect through a common box.
  3. 3Remove the digit from the cell seen by both free ends.

When to use

When a skyscraper doesn't fit but two conjugate 'strings' cross a box.

Common mistake

Failing to confirm the two strings actually share a box.