GlossaryTraining

Engine line

One action in the engine's answer, with how often the strategy takes it and what it is worth.

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What it means
The Engine tab lists every action you can take, each with its frequency and its EV in big blinds. Together they are the strategy for your hand in this spot.
How it is calculated
Frequencies add up to 100%. A strategy that mixes two actions is close to indifferent between them, so their EVs are near each other.
Worked example
Check 40% at +2.1bb and bet a third of the pot 60% at +2.2bb: both are fine, and the bet is slightly better.
Why it matters
It shows not only the best play but how much the others cost, which is what a grade measures.

See also: Frequency, EV, Mixed strategy, Turnstone