Building Your Preflop Foundation
First In
Knowing what to do when everyone folds to you is one of poker's most important skills.
12 min
18
Building Your Preflop Foundation
What "First In" teaches
Knowing what to do when everyone folds to you is one of poker's most important skills.
It sits inside Building Your Preflop Foundation: Move from knowing what a range is to understanding how real preflop strategy is constructed.
What you'll learn
- First in
- Rfi
- Baseline strategy
How the interactive lesson works
The full lesson is 18 steps long. Each step asks you to commit to a decision before the answer is revealed, then explains why the correct line works — the reveal is what makes the concept stick.
Create a free account to play through it and keep your progress, XP and concept mastery.
Start the interactive lesson
The full 18-step version is free to start with a StackedPoker account. Your progress, XP and concept mastery are saved as you go.
Open the lessonFrequently asked questions
What does the "First In" lesson cover?
Knowing what to do when everyone folds to you is one of poker's most important skills. It runs 18 interactive steps and takes about 12 minutes.
How long does "First In" take?
About 12 minutes across 18 steps. Progress is saved after every step, so the lesson can be finished across several sittings.
Do I need an account to take this lesson?
Yes — the interactive version requires a free StackedPoker account so your progress, XP and concept mastery are saved. This page is the free public overview of what the lesson teaches.
Which module is "First In" part of?
It is part of Building Your Preflop Foundation — Learn why position, ranges and stack depth determine which hands enter the pot.. Move from knowing what a range is to understanding how real preflop strategy is constructed.
Related
Concepts, lessons and tools that build on this page.
- LessonPreflop Range Mastery LabRoughly 40 interleaved table decisions, boundary comparisons, stack-depth and position comparisons, and reconstructions — every position, every depth, in random order.
- LessonButton MasteryNo one can ever put the Button out of position — the widest non-blind opening range at the table.
- LessonCutoff MasteryOnly two players left to act — and one of the very few seats that widens steadily with depth.
- ConceptPositionIP realizes ~10% more equity than OOP with symmetric ranges.
- ModuleDefending the OpenI am in the CO. Someone opened. What do I do? Learn every seat's defense, one position at a time.
- ModulePreflop AggressionUnderstand 3-bets, 4-bets, squeezes and the battle for initiative.
Source: Lesson metadata and objectives come from the StackedPoker curriculum; any theory shown is quoted from the StackedPoker concept registry.