A hand-picked directory of the best places to play Sudoku — classic, killer, variants and murder-mystery logic — plus step-by-step answers that actually explain the reasoning.
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Murder mystery meets Sudoku. Read the clues, place every suspect by row and column, and unmask the killer.
Hand-picked highlights — see the full collection in the directory.
Murder mystery meets Sudoku. Place suspects by row and column from the clues and unmask the killer. New free puzzles weekly.
PopularThe daily deduction-grid murder mystery by G. T. Karber. Suspects, weapons, locations and clues — one new case every day.
A daily natural-language logic puzzle: work out who's a criminal from clues the suspects give. No guessing — always a logical next step.
PopularThe biggest classic Sudoku destination — clean interface, four difficulties, a daily challenge and a polished mobile app.
Sudoku.com's killer mode — no givens, just caged sums. Daily killer puzzles from easy all the way to expert.
Variant hubThe app Cracking the Cryptic uses on-screen. Play killer, sandwich, thermo, arrow and dozens more shared variant puzzles.
Most “answer” pages hide the solution in an image or a click-to-reveal box, so search engines and AI can't read them. Official answers just hand you the final grid with no reasoning. We do the opposite.

Every site here is chosen and described by hand — from the all-time classics to brand-new puzzles like Murdoku. No spam, no dead links.

Killer, sandwich, thermo, murder-mystery — the styles smart players actually want, organized so you can find them in seconds.

When you're stuck, our step-by-step solutions show the reasoning — so you get better, instead of just peeking at the grid.