Game Overview
Nonogram (also called Picross or Griddlers) is a picture logic puzzle where numerical clues along rows and columns describe groups of filled squares. Your objective is to deduce which cells to fill so the pattern satisfies every sequence constraint and ultimately reveals a small pixel art image.
This minimalist version focuses on clarity—crisp contrast and spacious cell sizing help you think structurally instead of fighting the interface.
Controls
- Click / Tap: Toggle a cell filled vs empty (implementation dependent).
- Right Click / Long Press: Mark a cell as definitely blank (if supported).
- Goal: Complete all clue runs without contradiction.
Logic Tip: Start with fully determined lines—any row or column whose clues sum (with required gaps) to the line length yields fixed placements.
Core Solving Techniques
Strategy Guide
1. Deterministic Open
Target lines where clue sums nearly equal the full length. Lock these early to create a skeleton framework.
2. Overlap Mapping
For larger runs, slide the run mentally from far left to far right recording shared cells—those are guaranteed filled.
3. Negative Space Encoding
Mark blanks explicitly (if available). Visual negative confirmation accelerates mid‑puzzle propagation.
Consistent alternation between horizontal and vertical deduction prevents tunnel vision dead‑ends.
Common Mistakes
- Guessing Early: Leads to cascading contradiction rework.
- Ignoring Gaps: Forgetting mandatory single blank separators between groups.
- One‑Direction Focus: Staying on rows only—columns often unlock stalled progress.
- No Blank Marks: Omitting blanks forces you to re‑deduce already solved negative cells.