Sudoku puzzles from the evaluation set, grouped by the number of inference steps required by the Hierarchical Reasoning Model (HRM) solver. Each puzzle can also be opened on external platforms for inspection.
These puzzles are organized by solving difficulty (measured in algorithmic steps). Lower step counts indicate easier puzzles that require fewer logical deductions to solve.
Each puzzle is available in multiple formats: interactive web solver, clean SVG graphics, and PNG images for printing or sharing.