# GTO Preflop Ranges Library
The Library section in Freebetrange app offers ready-to-use preflop GTO strategies for all popular poker formats in Cash, MTT, and Spin&Go games.
Cash | MTT | Spins | MBR

Filters for Multi-Table Tournaments:
Format: ChipEV, ICMTable size: HU, 5-max, 6-max, 8-maxAnte size: No ante, 0.12bb, 0.2bb
# GTO Solutions content
Each solution includes the full preflop strategy tree. For every game situation, you’ll see a GTO range showing how all hands should be played according to the GTO strategy.
For instance, in the image below, we opened the classic 100 bb cash game solution in the Viewer. You can see how the BTN should react to a 3-bet from the small blind.

# Original / simplified GTO ranges
Pay attention to the first filter available in every game format: Solution Type. All GTO solutions in the Library are grouped into two types:
GTO— original ranges from the solver. Best for deep study and understanding of theory.Simplified GTO— same GTO ranges, but all the frequencies are rounded to the nearest 25% (e.g., 0%, 25%, 50%, 75%, 100%). Easier to use in practice — simpler to remember and apply during play.
In the example below you can compare original and simplified CO Open Raise ranges in a classic 100bb cash game:
As you can see, the difference is barely noticeable — yet the second range is much easier to read and memorize. For most learning scenarios, we recommend using Simplified GTO solutions.
# Adding solutions to your account
Click the Add strategy to my account button in the bottom-left corner to instantly add the current strategy to your account. Then you can use it in the Editor, Viewer, or Trainer to customize, study or practice.

You can add as many strategies as you like, as long as they fit within your plan’s range limit. Once the limit is reached, you’ll be notified and won’t be able to add more solutions. However, you can go to the Editor, delete unnecessary ones, and continue adding new solutions.
# Custom preflop strategies
There’s also a third option in the Solution Type filter — Custom. It includes custom preflop range packages from leading poker schools and coaches. These packages typically blend GTO fundamentals with exploit adjustments tailored for real games.

There is a variety of custom preflop charts for different types of games:
- No Limit Holdem Cash 6-max preflop charts and 9-max preflop charts
- MTT preflop charts
- Spin & Go preflop charts
- and more.
Click on any custom package to see the basic info about it - the description, information about the author and a few range examples:

# Quality of GTO solutions
All ranges in the Library are calculated with the HoldemResources Calculator (HRC) solver by professional players and coaches in each discipline. This combination of advanced technology and expert input ensures both theoretical accuracy and practical relevance.
For a more detailed explanation of our process, see the Methodology.
# How to apply GTO in practice
With our GTO Library you have access to ready-made GTO preflop ranges for most in-game situations. That foundation helps you build sound strategy and make steadier decisions at the table.
# 1. Use GTO as your baseline strategy
GTO ranges are the optimal starting point. Against unknown opponents, sticking to GTO protects you from major mistakes and from being exploited by strong players.
# 2. Drill decisions until they are automatic
Use the Trainer to practice regularly. The goal is to make standard preflop choices second nature so you are not burning time on basics during play.
# 3. Study how ranges are structured
Do not only memorize ranges — try to understand the logic: how ranges shift with position, stack depth, and opponents' actions. That builds strategic intuition and cleaner decisions in non-standard spots. Tip: use multi-range mode in the Viewer to compare strategies side by side and spot patterns.
Study both GTO and MDA
GTO is your theoretical baseline, and MDA shows how real players diverge from it in actual games. When you understand both optimal and real-world ranges across many spots, your game can reach an elite level.
← Getting Started MDA →




