v0 state

minTarget

maxTarget

roundT

roundT holds the mutable state of the open round. The target stays hidden (never rendered, never returned) until Reveal closes the round.

winRecord

winRecord is one closed-round result, kept for the leaderboard.

guessEntry

guessEntry is one address's blind guess for the current round.

current

entries

leaderboard

init.8

newRound

newRound builds a fresh round whose hidden target derives deterministically from the start height and round number. Gno has no runtime RNG, so mixing height with the round number is the only available entropy, and it also keeps consecutive rounds at the same height from repeating a target.

targetFromHeight

Guess

Guess records the caller's single blind guess for the current round. It returns no hint about correctness — that is the whole point of the puzzle. Crossing function: caller invokes as Guess(cross(cur), n).

hasGuessed

Reveal

Reveal closes the current round: discloses the target, crowns whoever landed closest (ties favor the earliest guesser), records a leaderboard entry, and opens a fresh round. Panics if nobody has guessed yet. Crossing function.

distance

Render

Render produces the gnoweb Markdown view. The current round's target and individual guess values are never shown — only the player count — so rendering the page can't leak the puzzle.

renderLeaderboard

renderLeaderboard formats closed rounds ranked by smallest distance (ties: earlier round first). Sorted on a copy so state is untouched.

sortByClosest

sortByClosest does an in-place insertion sort: smallest distance first, then earlier round first on ties. Small n; insertion sort keeps it deterministic and dependency-free.

closer

shortAddr