Game rules · Working memory
Sequence Recall
A seeded chain of pads replays one element longer each round. Reproduce it perfectly; deeper rounds are worth far more.
The run
How it plays
- Round 1 starts at 3 pads; round 12 reaches 14.
- You have 3s to start answering and 2.5s between taps.
- Both players face the identical chain — the seed is sealed before either watches it.
Working memory · up to 2½ min
Scoring formula · versioned
Every point, accounted for
Integer arithmetic only — the same result on every device, every time. Changing any number creates a new scoring version; old results never change.
| Component | Condition | Points |
|---|---|---|
| Correct pad | per tap, scaled by round | +10×round |
| Round complete | whole chain reproduced | +25×round |
| Speed bonus | round entered under 550ms per pad | +15×round |
| Perfect run | all 12 rounds | +500 |
| Wrong pad / timeout | ends the run — no point penalty | run over |
Fairness
Chance never picks the winner
The challenge is sealed and identical for both players — variety without advantage. Every official score is replayed and verified on the server.
Deterministic challengesServer-replayed scoresNo random tie-breaks