• Number five on the brain-game shortlist (docs/brain-game-roadmap.md)
  • Not the binary-search game: these candidates have no order, so there is no middle to aim at — you pick the question
  • Each question can show what it would leave you carrying if the answer goes badly — a question is worth its worst case
  • The bold question (1/7) is visibly worse than the even one (3/5), in numbers on screen
  • The end compares against perfect play ON THIS BOARD, not the idealised log2 figure
  • Because across 600 generated boards the available questions usually cannot halve cleanly — holding a child to log2 would be a target the board does not permit
  • Every board is checked to be solvable: no two candidates answer every question identically
  • A two-player mode: one thinks of the answer, the other asksplanned

✓ = done · ☐ = planned. Every game is built one step at a time like this.

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