FALSUM guides

Puzzles, deduction and logic explained once.

What separates a puzzle from a riddle, how a deduction case is solved and which book suits which age. Complete answers, no detours, nothing asked in return.

What a deduction puzzle book is, and how you solve one

A deduction puzzle book presents closed cases solved by reasoning from the information in the case itself, with no outside knowledge required. The reader gets a situation containing a hidden contradiction, examines the available evidence and reaches one demonstrable answer. Unlike a pastime, the solution has to be argued rather than guessed.

Mystery books for children aged 8 to 12: choosing the right level

For children aged 8 to 12, look for a mystery book with short cases, graded difficulty levels and explained solutions. They can read independently by this age but give up when a case demands too many chained steps. The sign the level is right: they solve at least one unaided in the first sitting.

Logic puzzles to play as a family: a guide by age

To play logic puzzles as a family, read the case aloud and ask every player for one observation before accepting any solution. That stops adults closing the case in thirty seconds and lets children contribute partially. A session of three or four cases, about twenty minutes, works better than a whole afternoon.

Riddle, deduction puzzle and logic puzzle: what separates them

A riddle is solved by wit or wordplay and its answer cannot be demonstrated, only recognised. A deduction puzzle is solved by reasoning over given evidence and has one justifiable answer. A logic puzzle adds formal constraints that combine until every possibility but one is eliminated.

Introducing a child aged 4 to 6 to deduction games

Between four and six, deduction starts with observation rather than verbal reasoning. What works is showing a picture and asking what is missing, what does not belong or what has changed, before asking for any explanation. The mystery should fit in one scene and be solvable by looking, with an adult reading aloud.

Logic puzzles on paper or on screen: what each format gives you

Paper wins when a case requires marking and crossing out, because you can annotate the grid without losing the overview. Screen wins on instant checking and saved progress. For single-reading cases the medium barely matters; for cases with many crossed constraints, a pencil is still faster.

The FALSUM books at a glance

Five titles with different mechanics and audiences. The books are published in Spanish and English editions are in preparation; none has a price or ISBN yet, and each book page states its real status.

FALSUM titles: audience, length and status
TitleFor whomLengthLevelsMechanicStatus
RASTROSAdults100 casesFive levelsLogic: reconstruct the single possible routeSpanish edition available on Amazon
The Impossible VersionAdults50 casesIndependent casesContradiction: find the account that failsComing soon
Faces Who Doesn’t Exist?Adults40 casesIndependent casesIdentity and visual deductionComing soon
La versión imposible KidsAges 8 to 1230 illustrated mysteriesFour levelsContradiction, with illustrated supportIn preparation
Mi primer libro de enigmasAges 4 to 6, shared reading24 illustrated mysteriesRead togetherObservation and spoken languageIn development