Keywords used: Eternica AoPS, AoPS Wiki, Puzzle Hunting, Olympiad problems, Competitive mathematics, Meta-contest, Infinite descent, HMMT, USAMO.
It could be a specific blog or a private forum created by a student to host a story or a math-related challenge. eternica aops
Ablations to test: with/without consolidation, with static vs. adaptive curricula, different novelty schedulers. Keywords used: Eternica AoPS, AoPS Wiki, Puzzle Hunting,