PokerSolver/4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BB 3-bet 4bb

SB vs BB 3-bet 4bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB opens 2bb, BB 3-bets to 4bb · Small blind to act

4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 6.64bbYour cards?

2bb

4bb

Tap your two cards.

Small blind's range

802 of 1,326 combos get here

Fold 21.2%Call 63.1%Raise 9.2bb 12.3%All-in 79.84bb 3.4%

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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?

SB opens 2bb, BB 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 21.2%, calls 63.1%, raises 9.2bb 12.3% and goes all-in 79.84bb 3.4%. Always call: 22-77, A7s-A9s, A3s, K8s, K6s, K3s, QJs, Q9s, J8s+, J3s-J6s, T7s, 87s, 76s, 65s, 53s+, A8o-A9o, A4o-A5o, K9o-KJo, Q9o+, J9o+, T9o. Always raise 9.2bb: AA, AQs. Mixed: 88-KK, AKs, ATs, A4s-A6s, KQs, K9s-KTs, K7s, QTs, Q8s, T8s+, T4s-T5s, 95s+, 86s, 84s, 74s, 63s, 52s, 43s, ATo+, A6o, A2o-A3o, KQo, K6o-K8o, Q7o-Q8o, J8o, T8o, 97o+, 76o, 65o.

Always fold: K5o, Q6o, J7o, T7o, 87o
Always call: 22-77, A7s-A9s, A3s, K8s, K6s, K3s, QJs, Q9s, J8s+, J3s-J6s, T7s, 87s, 76s, 65s, 53s+, A8o-A9o, A4o-A5o, K9o-KJo, Q9o+, J9o+, T9o
Always raise 9.2bb: AA, AQs
Always all-in 79.84bb: No hand plays this every time
Mixed: 88-KK, AKs, ATs, A4s-A6s, KQs, K9s-KTs, K7s, QTs, Q8s, T8s+, T4s-T5s, 95s+, 86s, 84s, 74s, 63s, 52s, 43s, ATo+, A6o, A2o-A3o, KQo, K6o-K8o, Q7o-Q8o, J8o, T8o, 97o+, 76o, 65o

Settings: 4-max · 80bb · 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, 80bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.