PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN all-in

SB vs BTN all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN opens 2bb, SB 3-bets to 6bb, BTN goes all-in · Small blind to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 257.48bbYour cards?
6bb
1bb
249.84bb

Tap your two cards.

Small blind's range

434 of 1,326 combos get here
Fold 88.6%Call 11.4%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when BTN opens 2bb, SB 3-bets to 6bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN opens 2bb, SB 3-bets to 6bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the small blind (SB) folds 88.6% and calls 11.4%. Always call: QQ+, AKs. Mixed: TT-JJ, 77-88, AQs, A8s-ATs, A3s-A4s, KTs, K5s, JTs, 98s, AQo.

Always fold
99, 22-66, AJs, A5s-A7s, A2s, KJs+, K6s-K9s, K2s-K4s, Q7s+, Q4s-Q5s, J7s-J9s, T6s+, 97s, 86s+, 75s+, 64s+, 54s, AKo, ATo-AJo, KTo+, QTo+, JTo
Always call
QQ+, AKs
Mixed
TT-JJ, 77-88, AQs, A8s-ATs, A3s-A4s, KTs, K5s, JTs, 98s, AQo
Settings: 4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.