The Cracked Cracker puzzle, by Bryce Herdt

There are three hexominos which can do it, all path hexominos, one in two ways.

--
Patrick Hamlyn
Perth, Western Australia
Multiprogramming P/L

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Ed:

I was able to find several different hexominoes that could be placed in the 5x5 minus corners grid:

--XX
XXX
X

-XXX
XX
X

-XXX
-X
XX

Robert Wainwright

Bryce Herdt's puzzle:
_AAX
AABBC
ABBXC
ABXCC
_BCC
Joseph DeVincentis

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I found two solutions: both with path hexominoes

AAA
.BBA.
CCBAA
.CBBB
CCC

AAA
AABBB
ABB.C
.B.CC
CCC

There are related solutions using both shapes based on flipping or
rotating 1 or 2 pieces.

-Jeremy Galvagni

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Dear Ed (and other readers),

I checked your site and saw my puzzle there. I think "path hexomino"
really is what I meant. Whatever it is, the hexomino is one which can
be traced with one curve, going from one end to the other only to
adjacent squares. Here's my solution.
01110
11828
18223
22233
03330

When I showed you my original solution, you mentioned there was another.
My first solution is on the left.
03330 2220
77733 0020
10773 0022
11070
01110
On the right is the hexomino used in the solution I found more recently.
It's placed in just about the same places as the first.

Sincerely,
Bryce Herdt