PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BB 3-bet 4bb

SB vs BB 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · SB opens 2bb, BB 3-bets to 4bb · Small blind to act

6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 6.96bbYour cards?

2bb

4bb

Tap your two cards.

Small blind's range

682 of 1,326 combos get here

Fold 21.9%Call 54.5%All-in 19.84bb 23.6%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when SB opens 2bb, BB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

SB opens 2bb, BB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the small blind (SB) folds 21.9%, calls 54.5% and goes all-in 19.84bb 23.6%. Always call: KJs, K8s-K9s, K5s-K6s, QJs, Q8s-Q9s, T8s, T5s, 76s, 64s+, KTo-KJo, K5o-K7o, QJo, JTo. Always all-in 19.84bb: QQ, 99, 77, AJs-AQs, A6s-A8s, A2s, AQo, A7o. Mixed: AA, A3s-A5s, KQs, QTs, J9s+, T9s, 98s, 95s, 87s, 84s, 74s, A5o, Q7o, J7o-J8o, T7o, 97o+, 86o+, 76o.

Always fold: 94s, 43s, Q6o, J5o-J6o, 65o
Always call: KJs, K8s-K9s, K5s-K6s, QJs, Q8s-Q9s, T8s, T5s, 76s, 64s+, KTo-KJo, K5o-K7o, QJo, JTo
Always all-in 19.84bb: QQ, 99, 77, AJs-AQs, A6s-A8s, A2s, AQo, A7o
Mixed: AA, A3s-A5s, KQs, QTs, J9s+, T9s, 98s, 95s, 87s, 84s, 74s, A5o, Q7o, J7o-J8o, T7o, 97o+, 86o+, 76o

Settings: 6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.