Tentenbou: Dots & Bars Puzzle
One-stroke logic brain teaser
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
18 levels of one-stroke puzzling. Trace dots and bars, collect coins from copper to gold.
Every board is measured before you see it. No ads, no purchases, offline.
Tentenbou ("dots and bars" in Japanese) is a one-stroke puzzle:
travel dotted lines and solid bars in alternation until every line
on the board is swept away.
■ Simple rules
- Travel lines in alternation: dots → bar → dots → ... (always start with dots)
- A line disappears once you have traveled it enough times; sweep them all to clear
- The ending matters: sweeping every line always lands you on the goal,
so plan a route that reaches the goal last
■ Deep thinking
- Lines marked "x2" must be traveled twice — how you loop is the key
- Lines with an arrow are one-way. Take them from the wrong side too early
and you can strand them
- Switch nodes flip the color (dots ⇔ bar) of every connected line
when you land on them. The order of your steps changes the board!
■ 18 levels
- Clear a board without using any assist to earn a point. 3 points to advance
- Points are never taken away. Get stuck and take help, and what you have
already earned still stands
- Finish every level for a COMPLETE!
■ Every board is measured, not just generated
- Each generated board is played out on the spot to measure how hard it
really is, and only boards that fit the level are served
- Every board is guaranteed to have a solution
■ Features
- Four hand-crafted practice stages (loops, one-way lines, switches, triangles),
all playable at any time straight from the home screen
- Stuck? Undo one move, rewind to a solvable point, or show a hint
- Illustrated "How to Play" guide
- No ads, no purchases, no data collection. Fully offline.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- A fresh look for the board: nodes are now coins you pick up as you pass,
and the goal is a flag carried by our mascot
- Clear a board without Undo, Reset or Hint and its coins go into your total
(top right). Coins grow in value as you advance: copper (Lv1-4),
silver (Lv5-9), gold (Lv10+)
- Moves, vanishing lines, coins, switches and clears are now animated
- The default move sound is now Cowbell. You can switch back to Voice or
Drum in Settings ▸ Move sound; if you already picked one, it is kept
The developer, SOICHI MIYAKE, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SOICHI MIYAKE
- Size
- 1 MB
- Category
- Puzzle
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Soichi MIyake