Diffinity
Challenge Your Logic! Play instantly in your browser. No download required.🧩
Diffinity – A New Logic Puzzle
Solve puzzles using only the differences between adjacent numbers.
Easy to learn, but surprisingly deep. If you enjoy Sudoku, Picross, or Kakuro, Diffinity offers a completely new way to think.
Features
🧩 Original gameplay based on adjacent number differences
📱 Quick 2–5 minute puzzles on a compact 5×5 grid
🎲 Unlimited auto-generated puzzles
📅 New Daily Puzzle every day
🌐 Available in English and Japanese
📱 Fully optimized for mobile devices
How to Play
Place numbers from 1 to 6 using the fixed cells and the difference clues between neighboring cells.
Every puzzle has a unique solution and can be solved through logic alone.
Play for free and discover a new kind of logic puzzle!

🧩 Diffinity(差ピクロス)
隣り合う数字の「差」だけをヒントに解く、新感覚の論理パズル。
数独やピクロスが好きな人に、新しい「ひらめき」を楽しんでもらうために作りました。
特徴
🧩 隣接する数字の「差」を使うオリジナルルール
⚡ 1問2〜5分で遊べる5×5パズル
🎲 問題はブラウザ上で自動生成
📅 毎日更新されるデイリーパズル
🌐 日本語・英語対応
📱 スマホでも快適に遊べるレスポンシブ設計
遊び方
数字(1〜6)を配置し、固定マスと「差」のヒントだけを頼りに盤面を完成させます。
すべての問題は論理だけで解ける一意解です。
無料で遊べます。ぜひ新しいパズル体験を楽しんでください!
| Status | Released |
| Platforms | HTML5 |
| Author | Cuprum Legion |
| Genre | Puzzle |
| Tags | Brain Training, Casual, daily-puzzle, japanese, logic, Minimalist, number-puzzle, Picross |
| AI Disclosure | AI Assisted, Code |
Development log
- 🔧 Added shake feedback on wrong answersJul 09, 2026

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