# ArrayQuest: Algorithm Puzzle — Grid Math & Brain Challenge

> Grid Math & Brain Challenge (iPhone/iPad app by Kato Daito.)

- Source: https://appshunter.io/ios/app/arrayquest-algorithm-puzzle/id6769298227 (this page in markdown: same URL + `.md`)
- Developer: [Kato Daito](https://appshunter.io/developer/1836848119)
- Category: Games, Education, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 31 MB
- Languages: American English
- Released: 2026-05-14
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/arrayquest-algorithm-puzzle/id6769298227/reviews.md

## What is ArrayQuest?

Real computer science problems. Turned into a game.

ArrayQuest transforms two classic algorithms — Maximum Submatrix and Maximum Path Sum —
into addictive puzzles you can play anywhere. Use logic, intuition, and strategy
to find the optimal solution hidden inside every grid.

---- Two Game Modes ----

▶ Max Submatrix
Drag across the grid to select a rectangle with the highest total sum.
Pack in as many positive numbers (blue) as you can, and cut out the negatives (red).
Grids grow larger as you advance — your thinking has to grow with them.

▶ Max Path Sum
Slide your finger from the top-left cell to the bottom-right, tracing the path
with the maximum sum. You can only move right or down — deceptively simple,
strategically deep. Reach the goal and the game judges instantly.

---- Features ----

• Stage System: grids get bigger, challenges get sharper
• Scoreboard: Record your clear times and chase your personal best
• Rules Guide: Clear explanations for each mode, with worked examples
• Swipe Input: Smooth, intuitive gesture controls throughout


Can you find the optimal solution?


## Version history (last 3 releases)

### 1.0.2 — 2026-05-17

Advertisement Display Interval Adjustment

### 1.0.1 — 2026-05-15

Minor bug fixes

### 1.0 — 2026-05-14

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*