GTO FisherExplore preflop ranges
Choose a library solution, follow the action, and read the range for the player to act.
An opening range and a range facing a raise answer different questions. Start with the correct game configuration, then follow the action to the decision you want to study.
Match the game configuration
In Study, select Change in the configuration bar. The Solutions library lets you narrow the available catalog by format, feature, table type, players, stack, limps, cold calls, and rake. Select a row to load it.
Check the row's opening size and other assumptions before continuing. The options come from the current catalog; a filter label does not mean every combination is available. If the list says Nothing in this set, clear a filter to broaden the results.
A nearby stack depth or a game with different rake can be useful for comparison, but it is not the same setup. For a first pass, choose a GTO configuration. Player and pool profiles explains configurations that model deviations.
Follow the action
Choose the preceding actions in the Action line. To inspect a big-blind response to a button open, for example, follow the folds, the button's displayed raise size, and the small blind's action before reading the big-blind matrix.
Check the acting position each time you move. Clicking an earlier decision lets you review its range; choosing another action changes the continuation. A range can become much narrower after a raise or call because it contains the hands that reach that branch.
Use the actions actually offered by the solution. A preflop branch with another raise size is not interchangeable with the one on screen.
Read families of hands
The matrix groups 169 starting hands: pairs on the diagonal, suited hands above it, and offsuit hands below it. A cell's colored mix shows its action frequencies. Read the action labels and legend as well as the colors.
A hand that raises some of the time and calls the rest is mixed; it is not an always-raise hand. Range describes how much of the hand reaches the decision, while its strategy describes what it does once there. Select the hand and inspect its details when those two ideas are easy to confuse.
Compare a boundary: a suited hand that continues, a nearby suited hand that folds more, and the corresponding offsuit hand. Some analytical views require postflop data, so their absence before the flop is expected.
Carry the range forward
Continue the action until two players reach a flop, then select three board cards and confirm. The postflop setup can inherit the ranges produced by that preflop line.
If you edit the postflop pot, stack, ranges, or other setup assumptions, Study can show a notice that the flop setup is disconnected from preflop. Interpret that result as the edited model, not the unchanged library line. See Build a custom solve.
To compare another library configuration, note the original setup before switching. The Compare tool is for supported profile and nodelock comparisons; it is not an arbitrary side-by-side library browser.