Sudoku Custom: Solve & Learn

Stuck on a hard Sudoku? Want to learn advanced techniques like X-Wing, Swordfish, or ALS? Sudoku Custom is your complete learning system with:

30+ SOLVING TECHNIQUES WITH TUTORIALS
Learn every technique from basic Single Candidate to advanced Almost Locked Sets (ALS), Forcing Chains, and more. Each technique includes:
- Step-by-step explanations
- Visual demonstrations
- Interactive examples

PERFECT FOR LEARNING
- Beginner? Start with easy techniques
- Advanced? Master expert strategies like Jellyfish, Sue de Coq
- Stuck? Import ANY puzzle and get detailed solving hints

TENS OF THOUSANDS OF PUZZLES
- 7 difficulty levels (Easy → Impossible)
- Fresh challenges every day
- Perfectly generated for quality solving

POWERFUL SOLVER & IMPORT
- Scan or manually input puzzles from newspapers, NYT, Apple News
- Get step-by-step solutions with technique explanations
- Save puzzles for later
- No ads interrupting your learning

COMPETE & TRACK PROGRESS
- Global leaderboards
- Track your solving statistics
- Challenge yourself with harder puzzles

**SUPPORTED TECHNIQUES:**
Naked/Hidden Singles, Pairs, Triples, Quadruples | Block Elimination | X-Wing | Swordfish | Jellyfish | XY-Wing | XYZ-Wing | Skyscraper | X-Chain | Forcing Chains | Almost Locked Sets (ALS) | Sue de Coq | Unique Rectangle | and many more!

Whether you're learning Sudoku or stuck on that impossible puzzle, Sudoku Custom helps you understand WHY each number goes where.

Download now and become a Sudoku expert!