There is a large family of paper (and now app) games that go by the collective name of brain games. Within that family, three stand out for longevity, popularity and number of people playing daily: Sudoku, crosswords and cryptic puzzles. Each exercises a different kind of mental muscle. Worth knowing the difference to pick yours, or to rotate between them.
Sudoku is a game of pure logical reasoning. No general knowledge involved, no vocabulary involved, no prior knowledge involved. Only numbers 1 to 9 and a single rule. What Sudoku exercises is elimination-based deduction, mental maintenance of a matrix of possibilities, and recognition of structural pattern. It is the most mathematical of the three, in the broad sense of the word: you work with a closed formal system.
Crosswords are the opposite: a game of knowledge and vocabulary. For a crossword to work for you, you need an accumulated repertoire of words, expressions, cultural references, and sometimes specific proper names. A well-built New York Times crossword crosses references from literature, film, sport and pop culture, and demands that you have exposure to all of that. Crossword exercises semantic memory and associative ability.
Cryptics, particularly anagram-based ones (puzzles of scrambled letters), exercise symbolic manipulation and lexical creativity. You take a set of letters and try to form valid words. Knowing the word is not enough; you have to see the word hidden in the scramble. It is a different muscle from Sudoku (which is deduction) and different from the crossword (which is semantic association).
There are also differences in cadence. Sudoku is a slow, contemplative game. Each decision requires verification. Five minutes on easy, an hour on expert. Crosswords have a medium rhythm: you read a clue, think, write, move on. Cryptics can be very fast (word search) or slow (complex anagram), depending on the type. The three share a closed-problem structure: there is a correct answer, there is a clear ending.
For a personal profile, a simple split is useful. People who think in pattern and structure tend to enjoy Sudoku more. People who think in words, memory and culture tend to enjoy crosswords more. People with a creative mind, letter games, anagrams, tend to enjoy cryptics. But many players do all three, in rotation. A morning crossword from the newspaper, an afternoon Sudoku to cut through a meeting, an evening anagram before sleep.
BLA now covers that second leg of the brain-game family with Cruzadinha BLA, released on the App Store after Sudoku BLA with the same editorial philosophy: no ads, offline-first, lean design, careful typography. A crossword in Brazilian Portuguese, with a daily 5×5 Mini, a weekly 15×15 Sunday and Special Editions. Cryptics are on the horizon. Sudoku was the first, but the complete line will have all three.
To exercise the brain with quality Brazilian brain games there are now two options: Sudoku BLA on the App Store, eight thousand puzzles, four levels, or Cruzadinha BLA on the App Store, a debut catalog of 242 puzzles across Minis, Sundays and themes. Cryptics come next.
