LEVELS
100-Level Challenge
Four chapters scale up the board. Each chapter ends with a boss level, and completion records are saved in this browser.
Chapter 1 5x5 Boards
Levels 1-30
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Chapter 2 6x6 Boards
Levels 31-60
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Chapter 3 8x8 Boards
Levels 61-85
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Chapter 4 10x10 Boards
Levels 86-100
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Progression
Learn Patches through 100 levels
Patches levels give you a fixed path through the core rectangle logic skills. Start with compact boards, learn how each clue limits the possible rectangles, and build toward larger boards where every patch affects the next decision.
The level grid is organized into four chapters. Each chapter changes the board scale and ends with a boss level, so you can practice a clear sequence instead of jumping straight into unlimited generated puzzles.
Use levels when you want structure and visible progress. Completion records stay in this browser, making it easy to return to the next unfinished level or replay a puzzle for a faster solve.
When you finish the progression or want more variety, endless mode lets you choose a board size and difficulty for generated practice.
Levels FAQ
What are Patches levels?
Patches levels are a structured set of 100 rectangle logic puzzles. Each level gives you a fixed challenge to solve and helps you practice one step at a time.
Do levels get harder?
Yes. The chapters introduce larger boards and tougher decisions as you progress. Early levels are compact, while later levels ask for more planning across the grid.
Can I skip to any level?
Yes. You can open any level from the level grid. Your completion records are saved locally in this browser.
How are levels different from endless mode?
Levels are curated as a 100-puzzle progression. Endless mode is for generating more practice boards after you want a fresh puzzle.
Want more endless practice? Go to Endless Mode ->