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From true crime to Murdoku:
why Spain wants to solve crimes
also on vacation

Recommendations Jul 4, 2026 7 books to choose from
7 libros de crimen interactivo —direct button to Amazon
1
Murdoku: 80 acertijos de lógica y asesinatos
Para quien quiere sudoku + crimen — el más popular del verano
See on Amazon →
2
Murdoku: Viaje al pasado
Para quien ya tiene el 1 y quiere continuar
See on Amazon →
3
Murdle: Resuelve el crimen
Para quien prefiere deducción escrita sobre cuadrícula visual
See on Amazon →
4
El crimen del verano 1
Para playa o piscina — variedad de pruebas, se abre por cualquier página
See on Amazon →
5
El crimen del verano 2
Para quien ya tiene el 1 o quiere regalar una continuación
See on Amazon →
6
SOPICIDIOS
Para partidas muy cortas — sopas de letras con capa de crimen
See on Amazon →
7
¿Puedes resolver este asesinato?
Para lectores de novela negra que quieren participar en la historia
See on Amazon →

This summer you don't just want to read true crime: you want to solve it. Murdoku mixes sudoku-type logic, clues and criminal mystery in a book-game format.

If you already know which one you want, use the table. If you doubt, below you have the quick difference between each option.

Phenomenon seen in Cadena SER and El País Showcase.
Why it works: Short cases No screens Alone or in a group

The 7 books, one by one

1. Murdoku: 80 acertijos de lógica y asesinatos

Manuel Garand

The most direct gateway to the phenomenon. You place suspects, objects and scenarios until you discover who could be left alone with the victim. Easy to explain, visual and with progressive difficulty.

It fits you if: you want the clearest cross between sudoku, Cluedo and light true crime for vacations.

2. Murdoku: Viaje al pasado

Manuel Garand

The natural option if you already know that you like mechanics. It maintains the 80 cases of logic but with a historical and mythological setting.

It fits you if: you are looking for continuity of Murdoku without repeating exactly the same scenarios.

3. Murdle: Resuelve el crimen

G. T. Karber

100 deduction mysteries closer to the detective notebook than to the grid. Good purchase for those who enjoy reasoning more than the visual scene.

It suits you if: you want many short cases with progressive difficulty and without depending on a single story.
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4. El crimen del verano 1

Modesto García

More than 70 varied pastimes — word searches, sudoku, observation, logic — to eliminate suspects. It feels more varied than a book with a single type of puzzle.

It fits you if: you want something vacationy, easy to open on any page and with a variety of tests.

5. El crimen del verano 2

Modesto García

More criminal pastimes with the same vacation logic. Good alternative if you already have the first volume or if you want to give a continuation as a gift.

It fits you if: you prefer a notebook of criminal activities rather than a unique sudoku-type mechanic.

6. SOPICIDIOS

Daniel Vergel

Alphabet soups turned into crime cases. Less "deduction board", more classic pastime with a layer of mystery. No learning curve.

It fits you if: you are looking for soft true crime, concentration and very short games.

7. ¿Puedes resolver este asesinato?

Antony Johnston

Closer to the interactive crime novel than to the hobby notebook. The pleasure is in following real research, not in completing exercises.

It fits you if: you like to read a story and feel like you participate in the resolution without abandoning the narrative.

Which one to choose according to your summer plan

For pool or beach

The Summer Crime — variety and holiday tone, you can close the book and come back without losing the thread.

For pure logic

Murdoku if you want visual grid; Murdle if you prefer written deduction.

To play in a group

Murdoku works very well at the family table — the clues are discussed out loud.

For crime novel readers

Can you solve this murder? — more narration, less notebook.

More related ideas

If this phenomenon reaches you online, check out our guide on how to use BookTok to find books. If you prefer to combine trends with sales lists, look at the best-selling fiction books in Spain. And if you want finer recommendations for yourself, start with how to use a book recommender.

Don't know which of these is yours?

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