Monkeymore Sudoku

Remote Pairs

Level 7 · Green Belt

Prerequisite: Remote PairsLearn next → Simple Coloring

Overview

Remote Pairs uses a chain of bi-value cells all containing the same two candidates. Cells at opposite ends of an even-length chain have opposite values, allowing eliminations.

How It Works

  1. Find a chain of bi-value cells all containing the same two candidates {X,Y}.
  2. Each cell in the chain must see the next cell.
  3. Cells at ends of an even-length chain have opposite values (one is X, other is Y).
  4. Eliminate both X and Y from cells that see both endpoints.

Example

Find a chain of bivalue cells all containing the same pair { 3, 5 }.

1 / 5

Tips & Patterns

  • The chain must have an even number of cells (4, 6, 8, etc.) for eliminations.
  • Cells alternate: if first is X, second is Y, third is X, etc.
  • Any cell seeing both endpoints can't be either candidate.