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Slide Fir*

Sliding Block Puzzles

by Peter Grabarchuk

 
 
In this puzzle its 3x4 tray is covered with a transparent cover which has an opening in the shape of a Fir-tree. So you can see all tiles which slide within the tray partially through the opening, and partially through the transparent cover (in the latter case they looks dim). Square tiles have blue stars and orange bulbs depicted on them. Every piece can slide to an adjacent free space. To move pieces simply click them.

In the Start position all blue stars are gathered exactly within the opening's outline (not crossing it) so that they decorate the Fir-tree, while all bulbs are scattered around the Fir-tree under the transparent cover.

Now your holiday challenge is to slide the tiles so that all blue stars surround the Fir-tree lying under the transparent cover, and all bulbs are gathered exactly within the opening's outline (not crossing it) so that they illuminate the Fir-tree. Note that the Goal diagram does not show the real solution.

Happy Puzzling and a Very Happy New Year!

***
The Slide Fir puzzle uses the same 3x4 grid (with nine 1x1 blocks in a 3x3 pattern, and a 1x2 "shuttle" block) which was used in the sliding block puzzles by Serhiy Grabarchuk shown below. Also, a similar "shuttle" piece was used in
Card Suits Suite - 2 by Serhiy Grabarchuk. Using of this "shuttle" piece which can move just by only one cell back and forth makes these puzzles especially tricky.
 
The Correct Order Puzzle by Serhiy Grabarchuk
The Correct Order Puzzle by Serhiy Grabarchuk.
The Correct Order Puzzle**
by Serhiy Grabarchuk
It is a basic puzzle for this type of sliding block puzzles in a 3x4 tray with nine square blocks which make a 3x3 pattern, and a 1x2 "shuttle" block. The goal is to restore the correct order of the numbers on the square blocks...
 
The Correct Order Puzzle - R by Serhiy Grabarchuk
The Correct Order Puzzle - R by Serhiy Grabarchuk.
The Correct Order Puzzle - R**
by Serhiy Grabarchuk
This puzzle is a hard version of the Correct Order Puzzle. Every piece but one can slide to an adjacent free space. The goal is to change the correct order of the numbers on the square blocks to opposite...
 
The Super Fan Puzzle by Serhiy Grabarchuk
The Super Fan Puzzle by Serhiy Grabarchuk.
The Super Fan Puzzle**
by Serhiy Grabarchuk
One more variation in a 3x4 tray with a "shuttle" block. Besides the "shuttle" block the puzzle has nine blocks: eight identically shaped blocks with one corner cut in two colors, and one central 1x1 block. The object is to reverse the whole fan. This puzzle has two different challenges -- easy and hard.
 
The Christmas Slide by Peter Grabarchuk
The Christmas Slide Puzzle by Peter Grabarchuk.
The Christmas Slide***
by Peter Grabarchuk
In this puzzle its 3x4 tray is covered with a transparent cover which has an opening in it in the shape of a Fir-tree. In the Start position all blue stars decorate the Fir-tree, while all bulbs are scattered around it. Your challenge is to swap stars and bulbs...
 
*) Puzzle concept: Copyright 2006 Peter Grabarchuk. All Rights Reserved.
**) These puzzles were published in the Neo Sliding Block Puzzles book, Part 2, by Serhiy Grabarchuk in 1999.
***) Puzzle concept: Copyright 2005 Peter Grabarchuk. All Rights Reserved.
 
Last Updated: October 14, 2008
Posted: December 30, 2006
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