Logic Blocks Go

60 Latin-square puzzles across 5 difficulty chapters. Star rating, move and time tracking. 100% offline, no account.

Logic Blocks is a clean, offline number-logic puzzle app featuring 60 handcrafted Latin Square puzzles across 5 progressive difficulty chapters.

Core Mechanic: Fill a 4×4 grid so every row and column contains exactly the digits 1, 2, 3, and 4 — no repeats, no guessing, pure deductive logic.

60 Puzzles — 5 Chapters:

1. Sweet (12 levels) — 10 pre-filled clues
2. Sugar (12 levels) — 8 pre-filled clues
3. Bitter (12 levels) — 6 pre-filled clues
4. Spicy (12 levels) — 5 pre-filled clues
5. Master (12 levels) — 4 pre-filled clues

Scoring System: Each completed puzzle earns 1–3 stars based on move efficiency and solve time. Best scores persist locally via UserDefaults. Progress is retained across sessions.

Technical Highlights:

• Conflict detection: Real-time row/column/digit collision highlighting
• Hint system: Reveals a single correct cell when requested
• Persistent progress: Per-level best moves, best time, and star count
• Theme: High-saturation Acid Candy palette for maximum visual clarity
• Fully offline: No network requests, no analytics, no account required