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Tactics Frenzy - Chess Puzzles
Master tactical chess skills through computer-generated puzzles designed by Tord Romstad, the first author of Stockfish chess engine, alongside puzzle expert Martin Bennedik
since Jun 16, 2026 · HTTP 522
CohortClass of 2026What it is
Master tactical chess skills through computer-generated puzzles designed by Tord Romstad, the first author of Stockfish chess engine, alongside puzzle expert Martin Bennedik. Each puzzle is crafted to enhance pattern recognition and decision-making in competitive play.
HTTP liveness
8 probes since Jun 16Jun 16Jul 15
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — downDead · 5xx
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Pulse Indexobserved activity
12/4 signal families
Liveness40%0.00
Press30%no data
GitHub20%no data
Tranco10%0.14
Weighted observed activity · updated Jul 15
Cohort survival · Class of 2026weekly
567 products launched in 2026 · 100% still active
567 active0 sunset
Still active
100%
Median lifespan
4.9y