# Addictive Planarity Puzzle Game **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [July 20, 2005, 8:55pm UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348 "2005-07-20T20:55:09Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![Mirasol](https://avatars.discourse-cdn.com/v4/letter/m/b5e925/32.png) [@Mirasol](https://boards.straightdope.com/u/Mirasol)\ **Post date:** [July 20, 2005, 8:55pm UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/1 "2005-07-20T20:55:09Z")
Here’s an addictive and unique puzzle game I found today that I’d like to share: [Planarity Game](http://home.cwru.edu/~jnt5/Planarity/) So far, I’ve beat level ten. Time to attempt level 11… ---
**Author:** ![Sunspace](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunspace/32/1250_2.png) [@Sunspace](https://boards.straightdope.com/u/Sunspace)\ **Post date:** [July 20, 2005, 9:49pm UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/2 "2005-07-20T21:49:31Z")
Okay, that’s addictive. 🙂 ---
**Author:** ![Duke\_of\_Rat](https://avatars.discourse-cdn.com/v4/letter/d/ad7895/32.png) [@Duke\_of\_Rat](https://boards.straightdope.com/u/Duke_of_Rat)\ **Post date:** [July 20, 2005, 11:28pm UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/3 "2005-07-20T23:28:36Z")
2552 after level 5, moving on… ---
**Author:** ![Ghanima](https://avatars.discourse-cdn.com/v4/letter/g/9e8a1a/32.png) [@Ghanima](https://boards.straightdope.com/u/Ghanima)\ **Post date:** [July 20, 2005, 11:34pm UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/4 "2005-07-20T23:34:22Z")
Level 10, 94446 points. My hand is going numb from clicking and dragging. Unfortunately I have to stop because it’s time to go home. Very addictive. ---
**Author:** ![Yeticus\_Rex](https://avatars.discourse-cdn.com/v4/letter/y/a698b9/32.png) [@Yeticus\_Rex](https://boards.straightdope.com/u/Yeticus_Rex)\ **Post date:** [July 21, 2005, 12:03am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/5 "2005-07-21T00:03:50Z")
We’ve been discussing an algorithm for this [here.](http://boards.straightdope.com/sdmb/showthread.php?t=326054) ---
**Author:** ![Duke\_of\_Rat](https://avatars.discourse-cdn.com/v4/letter/d/ad7895/32.png) [@Duke\_of\_Rat](https://boards.straightdope.com/u/Duke_of_Rat)\ **Post date:** [July 21, 2005, 12:10am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/6 "2005-07-21T00:10:07Z")
I’m about to start level 8, trial and error is really increasing my time and killing my score. 10 minutes for 6, 12 for 7. Only 10,759 thru 7 levels. ---
**Author:** ![Duke\_of\_Rat](https://avatars.discourse-cdn.com/v4/letter/d/ad7895/32.png) [@Duke\_of\_Rat](https://boards.straightdope.com/u/Duke_of_Rat)\ **Post date:** [July 21, 2005, 12:16am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/7 "2005-07-21T00:16:07Z")
Dang, drug one down and hit the “Shuffle”…man, man. ---
**Author:** ![Antigen](https://avatars.discourse-cdn.com/v4/letter/a/848f3c/32.png) [@Antigen](https://boards.straightdope.com/u/Antigen)\ **Post date:** [July 21, 2005, 2:35am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/8 "2005-07-21T02:35:10Z")
Why am I so bad at this? I have to come back when I’m less tired; I\* know\* I can do better. ---
**Author:** ![Robot\_Arm](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/robot_arm/32/18280_2.png) [@Robot\_Arm](https://boards.straightdope.com/u/Robot_Arm)\ **Post date:** [July 21, 2005, 2:53am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/9 "2005-07-21T02:53:33Z")
I was thinking level 8 was a serious pain in the ass, and then level 9 came up. 22322 points so far. ---
**Author:** ![Mirasol](https://avatars.discourse-cdn.com/v4/letter/m/b5e925/32.png) [@Mirasol](https://boards.straightdope.com/u/Mirasol)\ **Post date:** [July 21, 2005, 3:35am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/10 "2005-07-21T03:35:30Z")
> [@Yeticus Rex](#): > > We’ve been discussing an algorithm for this [here.](http://boards.straightdope.com/sdmb/showthread.php?t=326054) I even did a search on “planarity” first before I posted; but I missed that thread. I was just thinking about it as a game (though hoping some discussion about the math might come about) so didn’t think to look in General Questions. Thanks for the link–interesting read. I’ve made it through level 12 now, score is 401645. I tend to leave it unattended for long periods, so the time bonus isn’t very good. ---
**Author:** ![Shagnasty](https://avatars.discourse-cdn.com/v4/letter/s/9dc877/32.png) [@Shagnasty](https://boards.straightdope.com/u/Shagnasty)\ **Post date:** [July 21, 2005, 3:45am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/11 "2005-07-21T03:45:15Z")
I got to level three but I still haven’t found Mars. ---
**Author:** ![Nic2004](https://avatars.discourse-cdn.com/v4/letter/n/4491bb/32.png) [@Nic2004](https://boards.straightdope.com/u/Nic2004)\ **Post date:** [July 21, 2005, 4:24am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/12 "2005-07-21T04:24:56Z")
Level 7 Time 12:02 Bonus: 5678 Score: 10,849 Damn you for showing me this. Going back in… ---
**Author:** ![Cat\_Whisperer](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cat_whisperer/32/4839_2.png) [@Cat\_Whisperer](https://boards.straightdope.com/u/Cat_Whisperer)\ **Post date:** [July 21, 2005, 4:37am UTC](https://boards.straightdope.com/t/addictive-planarity-puzzle-game/313348/13 "2005-07-21T04:37:03Z")
I didn’t understand the instructions at first - arrange the vertices so no edges overlap? They’re all connected - there aren’t any edges. What the heck does that mean? Got level five finished now, anyway. It’s an interesting exercise - you basically have to see the connections in 3-D and unravel the knots in the yard to make it one long loop.