Hand puzzles

One heads-up hand played from the flop to the river, with every decision graded and the EV loss added up.

Last updated October 16, 2026

What it means: A puzzle deals one button versus big blind single-raised pot and plays it out street by street. The turn and river come from the cards left in the deck, and the pot carries forward from the action before.
How it is calculated: The flop decision is graded from the solver pack, as in the flop drill. The turn and river are graded by EV from your equity against the villain's range. The villain follows simple rules from config rather than a solver: the regular villain leads 30% of the time when first to act, bets 50% of the time when checked to, sizes at 66% of the pot and folds 40% of the time to a bet, whatever it holds. Without a solver pack the puzzle starts on the turn.
Worked example: You call a flop bet, then check the turn with 60% equity in a 9.1bb pot. Checking back would be worth 0.6 × 9.1 = 5.5bb at showdown. On the river the villain bets 6bb and you fold, which gives up 0.6 × 21.1 − 6 = 6.7bb, the whole EV loss of the hand.
Why it matters: Single-street drills never make you live with an earlier choice. Playing the whole hand shows how a flop decision shapes the pot and the price on later streets, and the total EV loss shows which street cost the most.