Every whodunit puzzle mathematically proven to have exactly one solution — before it ever reaches a buyer. Unlimited unique cases, so you never run out of ideas. No AI means no KDP disclosure headache.
Get Instant Access — $19Launch price · one-time payment30-day money-back guarantee · Runs 100% in your browser
Walk the puzzle aisle on Amazon and you'll see the same graveyard: sudoku book #4,000. Word search #9,000. Coloring book #who-even-knows. Those niches died of saturation years ago — every new book lands on page 50 next to ten thousand identical covers.
But one shelf is still empty: story-driven whodunit logic puzzles. A mansion. A cast of suspects. Clues that must all be true. One room holding the victim. It reads like a murder mystery and solves like a sudoku — and buyers devour both.
The reason nobody stocks that shelf? These puzzles are brutally hard to make by hand. Every clue has to be true. Every board needs exactly one answer. One sloppy clue and your buyer hits a dead end, leaves a one-star review, and your book is finished. That wall keeps competitors out.
This studio walks straight through that wall.
Here's what makes v2 different from every puzzle tool on the market:
After the engine builds each case, an independent solver re-solves it using pure deduction — without ever seeing the answer. It counts every possible culprit. Only puzzles with exactly ONE solution are approved. If a case fails, the engine rebuilds it automatically.
No guessing. No broken boards. No angry one-star reviews. Ever.
This is the single feature buyers ask about first — because a broken puzzle is the #1 killer of puzzle books on Amazon.
Start with the Studio. Scale up only if you want to:
| Level | What you get | Price |
|---|---|---|
| Front End | Whodunit Detective Puzzle Studio v2 — verifier, 5 difficulties, 6 themes, KDP compiler, commercial license | $19 |
| OTO1 — Pro | Unlimited generation, PNG export, custom suspects & rooms, expanded artwork packs | $47 |
| OTO2 — DFY Pack | 50 ready-to-publish books, 10 cover templates, Etsy printable bundles, KDP ranking blueprint | $67 |
| OTO3 — PLR | Full PLR rights, agency license, PLR certificate generator — rebrand and resell, keep 100% | $97 |
Buy the Studio, generate cases, verify them, publish a book. If within 30 days you don't agree this is the fastest way to produce verified whodunit puzzles for KDP — email us and we'll refund every cent. You keep anything you already published.
Results vary. This is a tool, not a promise of income. Your royalties depend on your publishing effort, niches chosen and market conditions.
No. You never write a word. You pick a theme and difficulty, the engine builds suspects, clues, hints and solutions — then verifies the single answer mathematically.
No. There is zero AI, zero API keys and zero monthly fees. Everything runs in your browser with pure logic — it works offline and never stops working because a third-party service changed.
It can't ship. The verifier re-solves every case with pure deduction and counts possible culprits. Only cases with exactly one solution are approved — the rest are rebuilt automatically.
Print-ready PDF books (300 DPI, 6"×9" or 8.5"×11") for Amazon KDP paperbacks, plus PNG pages you can sell as printables on Etsy. You keep 100% of royalties and sales.
The built-in Cover Studio generates 300 DPI covers inside the app — pick your theme, get a finished cover. No Canva, no designer, no extra cost.
Those niches are saturated with thousands of identical books. Story-driven whodunit puzzles are a near-empty shelf: buyers are hungry, and the difficulty of making verified puzzles keeps competitors out. That's your moat.
Instant access in your browser — no download, no install. Generate your first verified case within minutes, compile a book the same day, and you're covered by the 30-day guarantee.