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The Truth Behind Why Sudoku Grids Get Harder Without Bigger Boards

The Truth Behind Why Sudoku Grids Get Harder Without Bigger Boards

A sudoku puzzle doesn't need a bigger grid to get tougher - it just needs fewer starting numbers....

8 Sudoku Formats Currently Live On Vucui

8 Sudoku Formats Currently Live On Vucui

Eight picks spanning the different ways a sudoku grid gets varied.

  1. A classic 9x9 grid...

The One Thing That Wins Over Guessing In Sudoku

The One Thing That Wins Over Guessing In Sudoku

Solving a hard sudoku grid isn't about guessing well. A short list of habits beats intuition more...

Classic Grids Or Killer Sudoku In Logic: What Is Actually Different

Classic Grids Or Killer Sudoku In Logic: What Is Actually Different

Both fall under sudoku, but they reward different reasoning. It's less about which is better and...

Here's What's Different On Vucui

Here's What's Different On Vucui

Small changes accumulated across the sudoku lineup since the last notes.