Immaculate Grid Strategy: Rarity vs. Accuracy
6-minute read
The 3×3 Grid rewards obscure correct answers with low rarity scores — just like Immaculate Grid in baseball. But there's a math trap: a 100% rarity answer is worth nothing if it's wrong.
Expected value of every cell
For each cell, compute EV = P(correct) × (100 − rarity). A 70%-confidence answer at 40 rarity yields EV = 42. A 30%-confidence answer at 10 rarity yields EV = 27. Take the boring one.
Build around your weakest axis
If one row is a league you barely follow, spend your first two picks there — don't save the hard rows for last when the easy names are already claimed.
Know the crossover traps
"Played for Real Madrid × Scored in Champions League final" sounds easy but most answers are already taken by round 3.