SB calling range vs BTN all-in at 12 bb (4-max)
When BTN goes all-in and you're SB, with an effective stack of 12 bb in a 4-max tournament, the solver plays 19.7% of its hands (call 19.7%) and folds 80.3%. These frequencies come from Exploit It's full preflop tree: a chip-EV equilibrium with antes, computed for every position at the table.
Each cell: the share of each action for that hand, left to right. Gray cell: hand not in the range at this point.
Key takeaways for this spot
- The solver plays 19.7% of the hands that reach this spot, about 261 combos out of 1,326.
- Call is the main action for 20.1% of hands: from AA down to 22, the weakest hand played this way.
- Surprise: the solver folds some top-50 hands here, such as K9s, KTo, K8s, QJo.
What changes at 10 bb (6 hands change action)
- K9s: fold here, call at 10 bb
- KTo: fold here, call at 10 bb
- QJo: fold here, call at 10 bb
- A5o: fold here, call at 10 bb
- A2s: fold here, call at 10 bb
- A4o: fold here, call at 10 bb
What changes at 15 bb (4 hands change action)
- KJo: call here, fold at 15 bb
- A4s: call here, fold at 15 bb
- A3s: call here, fold at 15 bb
- A6o: call here, fold at 15 bb
Frequently asked questions
Which hands should you play from SB, facing an all-in, at 12 bb in 4-max?
The solver plays 19.7% of the hands that reach this spot, about 261 combos out of 1,326. Call is the main action for 20.1% of hands: from AA down to 22, the weakest hand played this way.
What should you do with small pairs (22 to 66) in this spot?
The solver's main action with each hand: 22 call, 33 call, 44 call, 55 call, 66 call.
What should you do with weak suited aces (A2s to A5s) in this spot?
The solver's main action with each hand: A2s fold, A3s call, A4s call, A5s call.
How do you train on this spot?
Exploit It's free quiz deals you random hands in this exact spot and shows you the solver's answer after each choice.
Short stack: the push/fold chart, from 5 to 20 bb
- BTN calling range vs CO all-in at 12 bb (4-max)
- SB open range at 12 bb (4-max)
- SB range vs CO open at 12 bb (4-max)
- SB range vs BTN open at 12 bb (4-max)
- SB calling range vs CO all-in at 12 bb (4-max)
- SB range vs BB 3-bet at 12 bb (4-max)
- SB range vs CO limp at 12 bb (4-max)
- SB range vs BTN limp at 12 bb (4-max)
- BB calling range vs CO all-in at 12 bb (4-max)
- BB calling range vs BTN all-in at 12 bb (4-max)
- BB calling range vs SB all-in at 12 bb (4-max)
Equilibrium computed by the Exploit It solver in chip-EV, antes included, open size 2 bb at 25 bb or less and 2.2 bb deeper. The model's range-width caps can make some EVs of unplayed actions optimistic: play the frequencies.