<%@LANGUAGE="JAVASCRIPT" CODEPAGE="65001"%> Types of asymmetric blocks
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Asymmetric blocks

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Sometimes a block is asymmetric because the seams make it so. Turnstile, Perpetual Motion, Friendship Star, and Lend & Borrow (below) are like that. If a block is asymmetrical by structure, it's covered in this section.

Other blocks are only asymmetrical because of color placement, or because they're made of flipped or rotated mini-blocks. We've included a few of those blocks in this section too.

The blocks are divided into Pinwheel, Flipped, Half 'n' half, and Tilted sections.* When you've found one like yours below, click on its icon.

Pinwheel
Turnstile, etc.
Turnstile
Points in the middle



Friendship Star
Patch in the middle



Perpetual Motion
Seams joining same-color patches
Flipped
Tic Tac Toe
Tic Tac Toe

Leap Frog
The Bat
The Bat
Half 'n' half

Lend & Borrow

Kaleidoscope

Arrowhead Puzzle
Tilted

Washington's Puzzle

Radio Windmill
(1/4 block)

Delaware Crosspatch
*Other than Pinwheel, the category names are unique to this site.

 

Need a fuller explanation?
Click on an icon below.


Pinwheel
Pinwheels have identical, asymmetrical sections arranged around the middle of a block as if they're rotating on a hub:


Flipped
In flipped blocks, each half is a mirror image of the other only if the midlines are drawn diagonally from corner to corner.

Half 'n' half
Half 'n' half blocks are a particular kind of flipped block.
In a half 'n' half block, the halves are different on either side of a single diagonal midline—upper left to lower right In the blocks below—and are mirror images when the midline is drawn in the opposite direction.

Tilted
Tilted blocks aren't complicated; they're just cockeyed.