GlossaryStrategy

Solved turns

Turn decisions graded against a solver pack for the turn, after the flop checked through or a flop bet was called.

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What it means
A turn pack solves the turn and river for one flop line in one spot, on a few turn cards for each solved flop. The ranges that reach the turn come from the flop solve: each hand's preflop weight, times how often it took each flop action on that line.
How it is calculated
At the table, a heads-up turn decision is graded from the turn pack when the flop line, the board and the turn card match a solved subgame. Otherwise it falls back to the equity grade against the opponent's range.
Worked example
The button opens, the big blind calls and both check a 5.5bb flop. The turn is a card the pack solved. You bet 3.6bb, worth +2.1bb, while checking is worth +2.4bb: an EV loss of 0.3bb, about 5% of the pot, graded against the solver rather than the equity rule of thumb.
Why it matters
Equity against a range ignores the betting still to come. A solved turn prices the river too, so its grade is closer to the truth where one exists.

See also: Solver flops, EV loss, Equity