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In Stud 8, I brought in with a 2 and have Kings in the hole; an Ace completes. Fold, call or re-raise?

Heads-up, PokerToast's limit Stud 8 solver re-raises with Kings in the hole when an Ace completes 100.0% of the time.

The spot

Game: heads-up limit Stud 8, 3rd street.
You: (K♠ K♦) 2♣ (down cards in brackets): a pair of Kings in the hole and a 2 showing; you brought in.
Your opponent: shows an Ace and completed (up: A♥).
Pot before this street: 0.3 small bets (the antes).
Pot size and the numbers: the solver groups pots by size: its numbers here are averages over every pot of up to 1.5 small bets at this point, so in exactly this pot they would be a little different.

Same numbers as Stud 8: Queens in the hole, an Ace completes your bring-in: the solver puts these hands in one group, so it plays them the same way and they share one measurement.

The solver's numbers

The solver's answer
Play	How often (strategy)	Worth from here on (EV estimate, small bets)
Re-raise	100.0%	+0.94
Fold	0.0%	+0.00
Call	0.0%	+0.83

Measured on 4,380 play-outs of this situation. The highlighted row is the play that measured best.

Why, in plain words

Re-raise and call are worth about the same here (0.11 small bets apart, within the measuring noise of about 0.14), so neither is a real mistake; the solver's usual choice is to re-raise (100.0%).

What popular strategy articles say

If an opponent shows an Ace on 3rd street and raises, seriously consider folding right there: with Kings you are very unlikely to scoop.

What strategy articles found by web search said on 2026-10-08 (PokerNews, Card Player, PokerStrategy, pokerskill and similar; mostly written between about 2007 and 2015, and mostly for full-ring games with several players in the pot).

Heads-up, the solver disagrees: it practically never chooses the recommended play (fold); its main play is re-raise (100.0%).

Measured value from here on: re-raise +0.94 small bets, fold 0 (folding).

Heads-up vs multiway

The numbers above are for heads-up play (two players). Most published advice is written for full-ring games with several players in the pot, so part of any difference can come from that.

We also looked up a 3-handed version (the Ace completes and a third player showing a Queen calls before it is back to you) in PokerToast's 3-handed solver, but it has not measured that spot often enough, so this page makes no claim about multiway pots.

How these numbers were made

From PokerToast's own heads-up limit Stud 8 solver, trained 7,862,000 iterations, exported 2026-10-05 09:56:29, 47,383 situations (version E-7862000-20261005095629). It learned by self-play (Monte Carlo counterfactual regret minimization) for limit betting, at most four bets a street.

How often is the solver's average strategy for this situation.
Worth (EV) is an estimate measured after training by playing the situation out many times against the solver's own strategy: small bets won or lost from this decision on, compared with folding (0). It assumes an opponent who plays like the solver.
Hand groups: the solver groups similar hands, so the numbers are for the group (here: 0|Q/D1|A0|S|ib), not only these exact cards. For each decision it looks at the street; your high hand (and flush draw); your low (made, or how many low cards you have and how many of the ones you need are dead); your opponent's board (a pair or an ace showing, and how many high cards they have for the low); the pot; and the betting so far on this street.
Stakes: ante 0.15 small bets per player, bring-in 0.25, a completion or bet on 3rd and 4th street is 1 small bet, 2 from 5th street.
Looked up when this page was built (2026-10-19); a newly trained solver changes the page and its version number.

Practice it

Your equity with these cards Today's Stud 8 Daily Spot Open PokerToast

Part of: Stud 8: when an Ace raises