Crystalline shards and sharp angles, it’s like a Fortress of Solitude in this puzzle.

N is for Number, like the numbers 1, 5, and 9. N is for Nine, which along with 1 and 5, are indexed columns. N is for Not planning to continue with this “N is for” routine.

Just put one foot behind the other; 6, 7, spin, 8, 9, cross, wait, look out! They aren’t supposed to be difficult dance steps, but everybody has different strengths and weaknesses.

It's a Sudoku-X! It's a spiral of givens! It's oh-so-many easy-to-find "naked" singles!

A heart beat is one of the most recognizable electrical signal displays, which is how I know this isn’t a healthy one. There should be two spikes, close together, but I do what I can with a 9x9 grid.

It’s t-t-t-two puzzles in one! For the low, low price of nothing, you get not one, not two, but 1.55 puzzles! It would be two puzzles, but four of the nine boxes are shared, so they probably shouldn’t count twice. One of the two grids is outlined in a shade lighter than the other.

The Christmas season means red and green everywhere, like holly with berries decking halls. Red and green, red and green. Such contrast! Red like stop, green like go. Red like danger, green like success. Like targeting, but successful. Speaking of contrast, red and green are are also the colors of Parity Lines (odd versus even) and German Whisper lines (high versus low).

It’s an X-Killer, get it? Okay, it’s not very subtle.

The title comes from a list that could get one banished to Australia in the late 18th century, or maybe that’s just wine marketing. It also matches the number of given digits in this Non-Consecutive Sudoku.

Opposites attract, familiarity breeds contempt, and a non-consecutive Sudoku beats a poke in the eye. These are the aphorisms by which I live my life.