Online since 2002. Over 3300 puzzles, 2600 worldwide members, and 270,000 messages.

TwistyPuzzles.com Forum

It is currently Sat Apr 19, 2014 2:58 pm

All times are UTC - 5 hours



Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: Coin "15" (Fifteen) Puzzle
PostPosted: Fri Oct 26, 2012 4:13 pm 
Offline

Joined: Tue Oct 13, 2009 1:13 am
Location: Saint-Petersburg, Russia
Hi!

There is well known Fifteen puzzle. This puzzle is not very difficult and
I wanted to make more challenged one. There were several attempts
and now I would like to present my Coin "15" Puzzle. I glued several
coins on the pieces, and this added new restriction: you cannot put
together two pieces with coins.

Video:: Coin "15" Puzzle

On the first picture you can see the simplest version: it is not too hard
to solve, but it's tricky. The latest version is very hard, the second has
middle level.

I used the following Russian and Soviet coins:

"2" is 2 Russian rubles
"5" is 5 Russian kopecks
"7" is the reverse of 1 Russian ruble
"10" is 10 Russian rubles
"13" is the reverse of 50 Russian kopecks
"15" is Soviet 15 kopecks

Also I put 1 Russian kopeck (not visible on the pictures) between
each piece and coin to make sliding smooth.

Note that all coins, except 15 kopecks, are in circulation now,
but 1 and 5 kopecks are almost out of circulation.

Why I use 50 kopecks for "13"? On the reverse of the coin you can
see Saint George, the slayer of dragons, and the length of that
dragon is 13 meters! Therefore I chose this coin.

Why I use the reverse of 1 ruble for "7"? H-mm... I don't know :)

You can make your own national version of this puzzle, use coins
of your country and you will get new interesting version! Enjoy!


Attachments:
PA211698.JPG
PA211698.JPG [ 110.14 KiB | Viewed 1054 times ]
PA221706.JPG
PA221706.JPG [ 105.99 KiB | Viewed 1054 times ]
PA221709.JPG
PA221709.JPG [ 103.8 KiB | Viewed 1054 times ]
Top
 Profile  
 
 Post subject: Re: Coin "15" (Fifteen) Puzzle
PostPosted: Fri Oct 26, 2012 10:04 pm 
Offline
User avatar

Joined: Mon Apr 03, 2006 10:38 am
Location: Connecticut
Nice idea.

Hanayama has issued puzzles having a similar principle - some juxtapositions of pieces result in blocked moves - kind of the 2D analogue of "overhang bandaging."

http://torito.jp/shopping/_kinokonoyama.shtml

http://torito.jp/shopping/_takenokonosato.shtml

_________________
http://robspuzzlepage.com


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Forum powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group