KenKen

About einstein KenKen

Einstein-level KenKen uses 6×6 grids with L-shaped cages, large cage groups, and configurations designed to resist the standard elimination playbook. These puzzles often require you to reason across multiple cages simultaneously before a single digit can be placed.

If you're stuck, look for "naked pairs" — two cells in the same row that can only contain the same two digits. That eliminates those digits from every other cell in the row. It's an advanced technique borrowed from Sudoku, and it breaks open the toughest grids. If you're solving these consistently, try our einstein Sudoku for a different challenge.