CONCEPTS · 5 ESSAYS
Poker concepts, written plainly
Cornerstone essays on the ideas you need to use the tools here — GTO, equity, range construction, and the math behind common spots. Updated as we add more.
May 17, 2026 · 6 MIN
What is GTO poker? A practical introduction
GTO (game theory optimal) poker is the unexploitable equilibrium strategy. Here's what that actually means, how solvers compute it, and why it doesn't always mean 'maximum profit'.
May 17, 2026 · 5 MIN
How to read a preflop chart
Preflop charts look like 13x13 colored grids. Here's how to actually use one — pairs on the diagonal, suited above, offsuit below, mixed-frequency colors, and the most common mistakes new players make.
May 17, 2026 · 5 MIN
Monte Carlo equity in poker — what it is and when to use it
Monte Carlo poker equity simulations estimate hand-vs-hand or range-vs-range win percentages by dealing thousands of random runouts. Here's how the method works and where its accuracy comes from.
May 17, 2026 · 4 MIN
Big blind defense frequency — the math that says call 52%
Why solvers say the big blind should defend roughly 52% of hands against a min-raise. The pot-odds math behind it and why folding too much from the BB is the single largest leak in low-stakes poker.
May 17, 2026 · 4 MIN
What is a range bet (and when not to use it)
Range betting is c-betting every hand in your range for the same small size. It's the optimal strategy on certain flop textures and a leak on others — here's where the line is.