Futoshiki (< > Logic)
Latin square number deduction with greater-than and less-than inequality signs.
How to Play & Master Futoshiki (< > Logic)
Complete official rules, deductive mechanics, and tournament-grade strategies.
Core Objective
Fill the N×N grid with digits 1 through N so each number appears once per row and column, while satisfying all inequality signs.
Official Step-by-Step Rules
- 1In an N×N grid, each row and column must contain digits 1 through N exactly once.
- 2The inequality signs (> and <) between adjacent cells must be respected at all times.
Pro Tips & Solving Techniques
- ★In an N×N grid, a cell on the greater end of a chain of inequalities can never be 1, and the lesser end can never be N.
- ★Look for inequality chains (e.g. A > B > C) to immediately eliminate extreme values.
Cognitive Neuroscience & Brain Benefits
How regular puzzle practice enhances neuroplasticity and mental acuity.
Playing Futoshiki (< > Logic) activates multiple brain networks simultaneously—including the prefrontal cortex for working memory and deductive logic, and the parietal lobe for pattern recognition. Daily solving strengthens neural connectivity, reduces stress through focused mindfulness, and builds fast problem-solving fluency.
Frequently Asked Questions
Everything you need to know about playing Futoshiki (< > Logic) online.
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