Logic Equations - Brain Puzzle

Logic Equations is a calm, clever puzzle game that blends sudoku-style deduction with algebra. Each row is a variable, each column is a number — figure out which value belongs to each letter so every equation is true.

HOW IT WORKS
• Variables must each take a unique number from 1 to N
• Tap cells to mark impossible values with ✕ or confirm with ✓
• Placing ✓ crosses out the rest of that row and column
• Equations turn green when correct and red when wrong
• AB means A × B — adjacent letters multiply

STORY MODE
Work through 240 puzzles across 20 chapters at your own pace. Progress saves automatically so you can pick up where you left off.

CUSTOM PUZZLES
Jump into free-play mode with grids from 4×4 up to 9×9 when you want a fresh challenge.

LEARN AS YOU PLAY
New to logic puzzles? An interactive tutorial on Level 1 teaches you as you play. Basic and advanced guides are always available in Settings.

FEATURES
• 240 handcrafted levels with unique solutions
• Undo mistakes and restart when stuck
• Hints when you need a nudge
• Works on phones and tablets
• Portrait and landscape support
• No account required — play offline
• Optional one-time purchase removes all ads permanently

Every puzzle is designed to be solved by reasoning alone — no guessing.
Free to play with ads. Remove all ads anytime with a one-time in-app purchase.