Bulldoku difficulty explained
Levels are globally sorted by difficulty — level 1 is the gentlest curated board, level 1000 among the hardest 10×10 puzzles.
Composite score
Difficulty blends technique weights, number of deduction steps, region shape complexity, and opening hardness. You always unlock levels in order.
Grid size bands
Early levels use 4×4 and 5×5 grids. Mid game reaches 6×6–8×8. Late campaign uses 9×9 and 10×10 boards.
Finding your ceiling
If you need walkthroughs every step, replay earlier levels with crosses only. When comfortable, study later walkthroughs such as Level 50 or Level 100 without skipping ahead in the campaign.
FAQ
- Does daily puzzle scale with my campaign?
- Daily pulls from the full pack by date hash — any day can be any difficulty.
- Hardest level?
- Level 1000 is near difficulty 123 in the current pack.