Is Using a Poker Solver Cheating?

Studying with a solver is not cheating; using one during a live hand is. Every poker room permits off-table analysis, and prohibits real-time help on the pot you are actually playing. The whole question reduces to one variable: when you look at the output.

The rule is about timing, not the tool

A GTO solver is a calculator that returns optimal frequencies for a spot you feed it. Feeding it a hand on Tuesday to learn a pattern is preparation. Feeding it the hand you are currently contesting, so it can tell you what to do this second, is real-time assistance — RTA — and that is banned on essentially every site.

Nobody objects to a player who drilled preflop charts for months or memorized pot odds. A solver belongs to that same family of preparation; it is just a more precise teacher. You study a spot, you internalize the shape of the answer, and the knowledge lives in your head by the time you sit down. Reading a book, watching a training video, and running solves the night before all land in the same allowed category because none of them touch the live decision in front of you.

The banned version outsources the decision to a screen. The moment you are reading output about the specific hand you’re in, you have stopped relying on learned skill and started receiving an unfair, per-hand edge over opponents playing from memory. That is why terms of service forbid it, usually alongside bots and automated play, and why detection commonly means frozen funds and a permanent ban. Site rules vary in wording and how aggressively they enforce, so read the specific room’s terms before installing anything.

Where players actually get confused

The obvious cases are easy. The edges are where people ask.

• A chart taped next to your monitor. A general strategy reference made in advance is usually treated as study material, like a printed preflop chart. But many rooms frown on any on-screen aid during play, and some ban it outright, so internalizing it is the safe path.
• Checking a solve between hands while sitting out. You aren’t in a live pot, but you are mid-session pulling up the exact spot you just played to guide the next one. Rooms generally treat this as RTA in spirit. Review after you quit, not between hands.
• A “GTO advisor” overlay that reads your current hand. This is RTA by design — the clearest violation and the easiest for a site to detect.
• Someone else playing your account while you study. Account sharing and multi-accounting are separate offenses stacked on top of any RTA concern.

The pattern runs through all of them: the closer the tool sits to a live decision, the more likely it’s prohibited. Anything strictly before or after the hand is fine.

A one-question test

When you’re unsure, ask: am I getting help on a hand I’m playing right now? If no, you’re studying, and you’re fine. If yes, that’s RTA — close it. A useful tiebreaker is whether the benefit survives the software being gone. Genuine study leaves knowledge behind that helps you even with everything closed; a live lookup leaves nothing but the answer to one hand.

Kept in study time, a solver is one of the strongest tools in the game and how nearly every serious player prepares — the study workflow is built entirely around running solves, then playing from memory. Keep the software shut while the cards are in the air and you never cross the line. For staying inside site rules more broadly, the online poker hub is the place to start.