Preflop Chart

Under the gun opening range

Under the gun is the first seat to act with five players still behind, so it opens the tightest range at the table. The chart keeps it to hands that play well against a 3-bet and do not need position: pairs down to sevens, the big suited broadways down to ATs and KJs, and AK and AQ offsuit.

Under the gun opening range19 hands, 8% of combos
Raise from any positionHijack and laterCutoff and buttonButton and small blindFold

Under the gun opening range, written out

Raise to 2.5 big blinds when the action folds to you. 19 hands, about 8% of all starting combinations.

Pairs
AA, KK, QQ, JJ, TT, 99, 88, 77
Suited
AKs, AQs, AJs, ATs, KQs, KJs, QJs, JTs, T9s
Offsuit
AKo, AQo

Everything not listed is a fold from this seat. Ranges are simplified beginner ranges for 6-max, 100bb cash; solver ranges mix at the edges.