# Byul: Star Logic

> 매일 풀어보는 우주 별 퍼즐

Canonical page: [https://chrome-stats.com/d/id6775390129](https://chrome-stats.com/d/id6775390129)

## Overview

- **ID:** `id6775390129`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Jaehyeok Lee
- **Category:** Puzzle
- **Version:** 1.0
- **Last updated:** 2026-06-04
- **First published:** 2026-06-04
- **Size:** 12 MB
- **Data as of:** 2026-09-17
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/byul-star-logic/id6775390129)
- **Website:** [https://samasamamimpi.github.io/byul-studio/](https://samasamamimpi.github.io/byul-studio/)
- **Privacy policy:** [https://samasamamimpi.github.io/byul-studio/privacy.html](https://samasamamimpi.github.io/byul-studio/privacy.html)

## Description

Brain-twisting daily logic puzzles. Place stars, follow three simple rules, beat the clock. No subscription, just a one-time purchase to remove ads forever.

A daily brain puzzle where you place stars in a starry night sky. One puzzle per day, the same for everyone in the world.

▣ THE RULES (3 lines, infinite depth)
A modern take on Star Battle, also known as "Two Not Touch":
• Place K stars in each row
• Place K stars in each column
• Place K stars in each bold-bordered region
• Stars cannot touch — not horizontally, vertically, or diagonally

That's it. Three rules. But the deduction chains run deep.

▣ MODES
• Daily Challenge — A new 10×10 Expert puzzle at midnight UTC. Everyone in the world solves the same one. Build your streak.
• Custom Play — Pick your size (5×5 to 10×10) and difficulty (Easy → Master). Five tiers of brain-bending.
• Resume Anywhere — Your in-progress game auto-saves. Pick up where you left off.

▣ NO AD HARASSMENT
• Daily Challenge is always ad-free
• Get a hint by watching one short ad — that's it
• Remove ads forever with a single one-time purchase
• No subscriptions, no upsells, no "premium tier"

▣ THIS IS FOR YOU IF
• You've solved Killer Sudoku Expert and want the next step
• You love NYT Games' "Two Not Touch" puzzles
• You miss the long deduction chains of Nikoli-style puzzles
• You want a focused 5 to 30 minutes a day for your brain

▣ TOOLS THAT RESPECT YOUR TIME
• Three input modes — Star, X-mark, Eraser — never more than one tap to switch
• Drag in X mode to paint multiple cells in one motion
• Unlimited Undo / Redo
• Instant red highlight when a placement violates the rules
• Hint system reveals one correct star at a time (via short reward ad)

▣ TRACK YOUR PROGRESS
• Solving time and total completions
• Best time per grid size
• Current streak and longest streak
• Compare your record against the global average

▣ MADE IN KOREA
Independent puzzle studio. Built for people who actually solve hard puzzles, not "casual brain games.

## Rankings

- #1,528,401 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6775390129)