Simple GTO
Range ViewerPricingRange PacksLearnContactSign in
Start free trial
← All topics

Learn

Preflop spots

Opening, three-betting, squeezing, and defending, spot by spot.

A preflop tree is a small number of decisions repeated in different seats. These pieces work through them one at a time: which hands open from which position, how a three-bet range splits value from bluffs, what changes when there is already a caller in the pot, and how the blinds defend against all of it. Each one names the conditions the strategy was solved for, because opening ranges that ignore rake, ante, or stack depth are answers without a question.

Preflop spots

Squeeze Ranges Preflop by Position and Stack Depth

Squeezing over an open and a caller is a different play from a normal 3-bet. Learn how dead money widens the range, why sizing grows per caller, and where pools go wrong.

Preflop spots

3-Bet Ranges 100bb Cash: Value, Bluffs, and Blockers

How a solved 100bb cash 3-bet range balances value and bluffs, why blockers pick the bluffs, how IP and OOP sizing differ, and the leaks that make 3-bets readable.

Preflop spots

6-max Cash 100bb RFI Ranges by Position

How solved 6-max opening ranges widen from UTG to the small blind at 100bb, why each seat opens what it does, and the common over- and under-opening leaks.

Preflop spots

Preflop Raise Sizing: What the Solve Actually Uses

How stack depth, position, rake, and antes drive preflop raise sizing: open sizes, 3-bet sizing IP vs OOP, 4-bet sizing, and why the number changes as stacks shorten.

Preflop spots

Blind vs. Blind: SB vs. BB Preflop Ranges

Small blind vs. big blind is the widest, most complex preflop spot. Learn why the SB is at a disadvantage and how solved blind-vs-blind trees handle it.