Same puzzle, younger buyer, worse odds.

Query: “sudoku for kids ages 8-12” · paperback · Amazon.com · about 10,000 competing books

Put this next to the large-print sudoku report and the contrast is the finding. There, an indie book at $4.99 leads the page. Here the leader is Brain Games at rank 2,898, and the best independent book sits at 19,956.

The rest of the indie field runs 26,723 · 58,694 · 64,708 · 85,551. Nobody self-published is near the top.

Ten thousand competitors — a small field — yet the ceiling for a newcomer is far lower than on the seniors' shelf with four times the competition.

Who holds page one

Title	Price	Rating	Reviews	BSR (Books)	Published	Pages	Who
Brain Games - Brain Workout: Sudoku	$7.78	4.8	1,793	2,898	October 1 20	192	Publisher
Sudoku for Kids Ages 8-12: over 200 Fun Puzzles	$6.99	4.8	247	19,956	Sept 10 2023	121	Indie
The Super Sudoku Book For Smart Kids	$9.99	4.8	812	21,877	Nov 28 2019	135	Publisher
Sudoku for Kids 8-12: 200 Sudoku Puzzles	$9.99	4.7	254	26,723	March 29 202	122	Indie
Sudoku for Kids Ages 10-12: Over 200 Puzzles	$9.99	4.6	71	58,694	June 23 2021	108	Indie
The Excellent Sudoku Book for Smart Kids Ages 8 to 12	$9.99	4.7	37	64,708	Sept 18 2024	176	Indie
Sudoku Kids 8 Years: Sudoku For Kids 8-12	$10.95	4.5	54	85,551	May 7 2020	113	Indie

What the numbers say

The buyer is a parent, not the user, and parents buy recognisable brands for children more readily than they do for themselves.
Prices cluster at $9.99 for 108–135 pages, while the leading publisher book charges $7.78 for 192 pages. You would be charging more for less against a known name.
The freshest indie entry (September 2024) sits at 64,708 with 37 reviews — nine months in and going nowhere. On the crossword shelf, books half that age are inside the top 12,000.
Nothing here is broken — ratings are 4.5–4.8 across the board. The shelf is simply harder, which is a different problem from a bad shelf.
The pattern across fourteen shelves holds: puzzle books for older readers admit newcomers; the same puzzle aimed at children does not.

What I would actually do

Prefer the seniors' version

Identical production work, materially better odds. That is the entire recommendation.

If you enter, price under $7

You cannot ask more than Brain Games while offering fewer pages and no name.

Bundle puzzle types

The successful children's books we measured on the maze shelf were compendiums, not single-puzzle books.

Watch that 2024 entry

It is the natural experiment for this shelf. If it climbs over the next year, revisit; if it stays put, the door is shut.

Where these numbers come from, and what they are not

Every figure was read off Amazon.com on 18 September 2026: the organic results for that query with sponsored slots removed, then each listing's own page for rank, review count, publication date and length. Prices are US list prices at that moment and move constantly. Best Sellers Rank is a live position, not a sales figure — a rank read on a Tuesday can differ from the same rank on Sunday. “Indie” means the listing shows no traditional publisher, the closest public signal for a self-published title; it will occasionally mislabel a small press. Only paperbacks were counted. And know the width of the lens: this is the first page of one query — eight organic listings — not a census of the niche. A shelf that looks closed to newcomers here may be open on a neighbouring phrase, and seasonality is not accounted for: gift-driven categories rank differently in September than in November. One snapshot is not a trend.

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