Sudoku Dragon

‘Shared Subgroup’ Sudoku puzzle solving guide


When the Only Choice and Only Square rules reveal no new squares to solve, the Shared Subgroup rule often comes to the rescue.

Progress: 80%

Other guides

sudoku For generation and solution of Sudoku puzzles download and install Sudoku Dragon.
It is the complete Sudoku package, including hints, guides, and many new puzzle types. Download our Sudoku puzzle solver for a free 23 day trial.

At the incredible value of just $9 SudokuDragon offers forever usage (no subscription, no adverts), download for free trial here.

Copyright © 2005-2023 Sudoku Dragon