Al-Heyawake:

This is another variation on Nikoli's Heyawake puzzle and assumes familiarity with those rules.

I wanted to create puzzles that incorporated some simple equations/relations, venturing out beyond the single operator logic used in puzzles like Ken-Ken and Futoshiki.

For instance, A (5 rooms) = 5 means that there are 5 "A" rooms whose ( Read more... )

Heyawake Fences:

This is a variation of Nikoli's Heyawake puzzle where numbered squares indicate how many edges of the square border a colored square (unlike normal Heyawake, where a number would only occur in the upper left corner of a box and indicate how many black squares were within the box).

The colored squares follow the rules of Heyawake: ( Read more... )

Tandem Puzzles:

Tandem puzzles are pairs (trios, etc.) of puzzles that are related to each other by shared letter clues.  The cool thing about this idea is that the two puzzles don't have to be of the same type.  The idea is to alternate between puzzles making headway on one and using those solved clues to make progress with the other and vice- ( Read more... )

Battleship Heyawake

As it sounds, this combination of the old favorite Battleships with the  more recent Nikoli puzzle Heyawake.  This idea was inspired by Thomas Snyder's great book:  Battleship Sudoku.

The solution must be a valid Heyawake solution while placing each of the ships specified so they do not touch each other, even diagonally.

Unlike ( Read more... )

Heyatori

It's been a while since I posted new puzzles.  Part busyness, part writer's block.  In particular, I wanted to come up with another Heyawake variation after posting Ivy Heyawake a few months back.

I did Heyawake and Hitori puzzles back-to-back recently and I had the thought that I could create a puzzle that combined the two into one, hence ( Read more... )

Here's a list of the puzzles published in the last month:

Shores of Nurikabe
Nurikabe Sudoku (plus a 12x12 challenge question)
LITS Stay Together
Parquet
Tentai Fillimino
Let's Stay Together
Meta Hashi
Ivy Heyawake
Lake Nurikabe
Tentai Nurikabe
Nurikabe Kuromasu

I got the puzzle writing bug in early May.  I came up with two factoring-related puzzles that I ( Read more... )

Ivy Heyawake, A Variation

Just to break up the monotony, here's a Heyawake variation. Heyawake is another cool logic puzzle from Nikoli. The rules for Heyawake are a little tricky so I recommend you check out them out first before attempting these puzzles.

Unlike Nurikabe, variations for this puzzle don't really spring to mind but if you come ( Read more... )