Poker preflop notes
The chart is the tool. These notes explain the grid, the seats, and the odds.
Read the chart
How to read a preflop range chart
What the 169-hand grid means, why suited and offsuit sit apart, and how position changes an open.
Suited and offsuit hands
Why AKs and AKo are different hands, where they sit on the 13×13 grid, and which one this chart opens.
Poker hand combinations
How many ways you can be dealt AA, AKs and AKo, and why a chart percent counts combinations, not cells.
Positions
Poker positions in 6-max
How to find the button, the blinds and UTG at a six-handed table, and which chart to open from each seat.
UTG opening range at 100bb
Which hands this study chart open-raises from under the gun in 6-max cash at 100bb, and which hands it folds.
Hijack and cutoff opening ranges
How the open widens from the hijack to the cutoff at 100bb, and which offsuit and suited hands each seat adds.
Button opening range at 100bb
The widest open on this study chart: about 44.8% of hands from the button when it folds to you at 100bb.
Small blind opening range
Why the small blind opens less than the button at 100bb: about 27.3% of hands, because you play the rest out of position.
Why the big blind does not open
If it folds to the big blind, the hand is already over. This chart has no open from BB.
Odds
Pot odds and outs
The price of a call, how outs become equity on the flop and the turn, and where to run the sum on this site.