--- title: "1121 — App Overview" url: https://marlvel.ai/apps/1121 category: Games developer: Ming-Shiuan Yu platforms: ios rating: 5.0 (2 ratings) pricing: freemium report_level: overview generated: 2026-05-09 last_verified: "2026-05-09T07:04:25.434Z" overall_rating: 5 total_reviews: 2 data_age_days: 60 --- > **Key Insight:** 1121 combines standard tile-merging mechanics with a mathematical constraint system that emphasizes efficiency and optimal problem-solving. | Metric | Value | |--------|-------| | Category | Games | | Rating | 5.0 ★ (2) | | Pricing | freemium | | Platforms | iOS | | Latest Version (iOS) | 2.1.0 | | Developer | Ming-Shiuan Yu | ## What is 1121? 1121 is a 6x6 tile-eliminating puzzle game where players arrange mathematical expressions to clear the board. The game distinguishes itself by calculating the mathematically optimal solution for every level, challenging players to match the algorithm's efficiency. ## Key Features - **Mathematical Puzzle Mechanics**: Players swipe to merge tiles that form valid mathematical expressions to clear the board. - **Environmental Obstacles**: Gameplay includes challenges such as one-way signs, traps, and stop points to increase difficulty. - **Optimal Move Tracking**: The game uses a computer algorithm to determine the fewest moves possible for each level. - **Hint System**: Players can unlock the shortest solution one move at a time if they are unable to clear a level. ## Who is it for? Puzzle enthusiasts and players interested in logic-based mathematical challenges. ## Links - [App Store](https://apps.apple.com/us/app/1121/id1400669212?uo=4) - [Full Intelligence Report](https://marlvel.ai/apps/1121) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/1121).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*