Daily editions

How Daily Browser Games Stay Reproducible

A daily challenge is useful when its identity is clear. These editions derive a deterministic seed from the UTC date, game identifier, rules version, and variant. That recreates the same starting state while keeping each player's moves and records local.

What the date controls

The date selects a shuffle, layout, or generated sequence; it does not change legal moves. If an engine or rules version changes in the future, its version remains part of the identity so old and new results are not silently treated as identical.

Replay without a leaderboard

Reopening a date lets one player compare openings, move counts, or routes. There is no public ranking and no claim that time or moves are comparable across different devices, accessibility methods, or paused sessions.

Reproducible is not guaranteed

A deterministic shuffle is repeatable, not certified solvable. Daily pages deliberately avoid promising that every random solitaire deal has a winning path; generated puzzles document guarantees only where their construction proves one.

Curated starting points

Games in this collection

FreeCellUse four open cells to reorganize a fully visible deal and build every suit onto its foundation.Pyramid SolitairePair exposed cards that total thirteen to dismantle the pyramid before the stock runs out.Golf SolitaireClear seven columns by playing exposed cards one rank above or below the waste before the stock runs out.Yukon SolitaireMove complete face-up tails between seven columns and build four suit foundations without a stock pile.Mahjong SolitaireRemove identical free tiles from a compact 72-tile layered layout until the board is empty.2048Slide and combine equal numbered tiles on a four-by-four board in the complete browser version of 2048.

Questions about this collection

When does a new daily game begin?

Daily identities use the calendar date in UTC, which may differ from local midnight.

Does everyone get the same challenge?

Players opening the same date, game, rules version, and variant receive the same start state.

Where is daily completion stored?

It is saved in the current browser's bounded local profile and is not tied to an account.