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6561
6561 is an advanced puzzle game that builds on 2048 mechanics by requiring players to merge three tiles instead of two
since Jun 16, 2026 · HTTP 404
CohortClass of 2026What it is
6561 is an advanced puzzle game that builds on 2048 mechanics by requiring players to merge three tiles instead of two. It combines strategy and quick thinking in an accessible format suitable for casual and dedicated players alike.
HTTP liveness
9 probes since Jun 16Jun 16Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — downDead · 404
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Pulse Indexobserved activity
9 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2026weekly
550 products launched in 2026 · 100% still active
550 active0 sunset
Still active
100%
Median lifespan
4.9y