Daily archive
Every day gets a new human versus AI challenge.
Each permalink is a fresh drop for search, sharing, and the simple ritual of coming back tomorrow sharper than today.
Doubling Track
Pattern recognition
2 minAugust 20, 2026Launch Lineup
Logic
4 minAugust 21, 2026Red Blips
Critical thinking
3 minAugust 22, 2026Base Rate Flare
Estimation
4 minAugust 23, 2026Second Word
Memory
1 minAugust 24, 2026No Letter A
Creativity
2 minAugust 25, 2026Ranking Shadow
Logic
3 minAugust 26, 2026Prime Intruder
Pattern recognition
2 minAugust 27, 2026Closed Door
Critical thinking
3 minAugust 28, 2026Budget Pivot
Estimation
3 minTodaySignal Logic
Logic
3 minAugust 30, 2026Percent Snapback
Numerical intuition
2 minAugust 31, 2026Doubling Track
Pattern recognition
2 minSeptember 1, 2026Launch Lineup
Logic
4 minSeptember 2, 2026Red Blips
Critical thinking
3 minSeptember 3, 2026Base Rate Flare
Estimation
4 minSeptember 4, 2026Second Word
Memory
1 minSeptember 5, 2026No Letter A
Creativity
2 minSeptember 6, 2026Ranking Shadow
Logic
3 minSeptember 7, 2026Prime Intruder
Pattern recognition
2 minSeptember 8, 2026Closed Door
Critical thinking
3 minSeptember 9, 2026Budget Pivot
Estimation
3 minSeptember 10, 2026Signal Logic
Logic
3 minSeptember 11, 2026Percent Snapback
Numerical intuition
2 minSeptember 12, 2026Doubling Track
Pattern recognition
2 minSeptember 13, 2026Launch Lineup
Logic
4 minSeptember 14, 2026Red Blips
Critical thinking
3 minSeptember 15, 2026Base Rate Flare
Estimation
4 minSeptember 16, 2026Second Word
Memory
1 minSeptember 17, 2026No Letter A
Creativity
2 minSeptember 18, 2026Ranking Shadow
Logic
3 min