Su Doku (Murderous Maths)
Kjartan Poskitt
Su Doku (Murderous Maths)
Age Rating, Reading Level & Content Guide
by Kjartan Poskitt
Illustrated by Philip Reeve
The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is gentle with no concerning themes.
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About This Book
Here’s a secret: Su Doku isn’t just a puzzle—it’s a challenge that can save Blade and his friends from a sticky mess! Dive into tricky grids with the Murderous Maths crew, but beware—Professor Fiendish isn’t playing fair. And that’s only the beginning.
Quick Assessment
This middle-grade fiction book combines engaging Sudoku puzzles with a fun story featuring the Murderous Maths characters. It offers four difficulty levels suitable for children ages 9-12, encouraging logical thinking and problem-solving skills. The content is light and appropriate, with no concerning themes or language.
Why we rated Su Doku (Murderous Maths) 9C
Su Doku (Murderous Maths) is written at a Level 4-5 reading level across 144 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Su Doku (Murderous Maths) works for readers up to grade 6.5.
We rate Su Doku (Murderous Maths) as 9C ("Clear") because the content sits in the "Gentle" range — no conflict beyond everyday childhood experiences. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly gentle; no single dimension stands out as a concern.
No specific content flags were raised by community reviewers, which is consistent with the gentle intensity score.
Thematically, Su Doku (Murderous Maths) explores games & activities, puzzle solving, humor, and adventure — these threads give the book room to mean different things to different readers.
Good fit for
- ✓ Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
- ✓ Kids drawn to stories about games & activities, puzzle solving, humor.
Maybe not for
- ! Readers whose emotional readiness lags behind their decoding skills — this book's intensity outruns its reading level, a classic "gifted kid" mismatch.
For Parents
Content Intensity
9C — ClearNo conflict beyond everyday childhood experiences. Safe for sensitive readers.
Was our "Gentle" content intensity rating accurate for this book?
Reading Insights
Hook Factor
3/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780439950459
- Pages
- 144
- Publisher
- Scholastic Hippo
- Published
- August 19, 2005
- Type
- Fiction