Region Select

Region Select


“Region Select” is a new puzzle game for Android discovered by
Osaka City University Advanced Mathematical Institute using advanced mathematical knot theory.
Although its rules are as simple as Sudoku and Rubik’s Cube, “Region Select” will challenge you to
think ahead like Japanese Go.

[Game explanation]
At the beginning there is a knot figure. The spaces between the lines are called “regions”,
and the places where the lines meet are called “crossings”.
Each crossing has a “lamp” which can be turned on or off by clicking on the region bordering it.
But when you click on a region, all of its crossing lamps change! If a lamp is already on,
it will be turned off, and if a lamp is off, it will be turned on.
The goal of the game is to light up all of the knot’s lamps by clicking on different regions.
Mathematical knot theory proves that each knot figure can be cleared.

[About knot theory]
Knot theory is a branch of mathematics studying tangled string knots to determine such things
as whether a knot is actually tied or untied,
how a knot can be untied, and what kinds of knots exist, etc. Nowadays knot theory is studied and used
around the world not only in mathematical research but also in physics, chemistry, and biology, etc.

【Music provided:tomoya】

Look forward to updates with more knots coming soon!

Recent changes:
bug fix.
Add to list
Free
69
3.5
User ratings
88
Installs
10,000+
Concerns
0
File size
3645 kb
Screenshots
Screenshot of Region Select Screenshot of Region Select Screenshot of Region Select Screenshot of Region Select

About Region Select
“Region Select” is a new puzzle game for Android discovered by
Osaka City University Advanced Mathematical Institute using advanced mathematical knot theory.
Although its rules are as simple as Sudoku and Rubik’s Cube, “Region Select” will challenge you to
think ahead like Japanese Go.

[Game explanation]
At the beginning there is a knot figure. The spaces between the lines are called “regions”,
and the places where the lines meet are called “crossings”.
Each crossing has a “lamp” which can be turned on or off by clicking on the region bordering it.
But when you click on a region, all of its crossing lamps change! If a lamp is already on,
it will be turned off, and if a lamp is off, it will be turned on.
The goal of the game is to light up all of the knot’s lamps by clicking on different regions.
Mathematical knot theory proves that each knot figure can be cleared.

[About knot theory]
Knot theory is a branch of mathematics studying tangled string knots to determine such things
as whether a knot is actually tied or untied,
how a knot can be untied, and what kinds of knots exist, etc. Nowadays knot theory is studied and used
around the world not only in mathematical research but also in physics, chemistry, and biology, etc.

【Music provided:tomoya】

Look forward to updates with more knots coming soon!

Recent changes:
bug fix.
User reviews of Region Select
Write the first review for this app!
Android Market Comments
A Google User
Jan 24, 2013
Nice, but not worth $ I've solved all the free levels. It's a good brain twister, but not worth $ for extra levels.
A Google User
Jan 24, 2013
Nice, but not worth $ I've solved all the free levels. It's a good brain twister, but not worth $ for extra levels.
A Google User
Jan 4, 2013
Awesome I liked it ; it can be moved just need is move to SD apps download it from apps market
A Google User
Sep 21, 2012
Best puzzle It makes you think without getting too hard to fast. Awesome. Favourite puzzle game yet
A Google User
Apr 5, 2012
Memory hungry Nice app, but needs to be transferable to SD card for five stars. Only three at present since it consumes over 7 megabytes of precious phone memory.