CISRA Puzzle Competition 2008 - Solutions

This is the archive of the 2008 Puzzle Competition. Please visit the current competition site for information about the latest Puzzle Competition.

D.4 Cross Section

Each shape can be cut out and folded along the dashed lines. If you fold all the fine-dotted lines in one direction, and the coarse-dotted lines in the other direction, the overall appearance of the shape will be as follows:

[graphical solution]

The cross-section looks like a seven-segment display.

[graphical solution]

There are holes in the shapes. Taking the cross-section of each layer of the shape from left to right, you get:

[graphical solution]

This reads "unify typos in place rotate right refold" (ignoring the "typos"). Aligning so we can see vertical columns:

yunify
typaos
in6
placye
rotatez
r6ight
refolnd

If you leave the typos in place (that is, "y" is in position 1, "6" is in position 2,... "z" is in position 7) and unify them, you get the string "y66aynz". Pasting the ssections of the original shapes which form these letters together, you get a new shape:

[graphical solution]

Rotating it right by 90 degrees and adding folding lines like the other shapes makes it look like this:

[graphical solution]

Re-folding it and reading the letters from its cross-sections spells the following:

[graphical solution]

ENGAGED is the answer.