PokerSolver
PokerSolver/5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · HJ opens 2bb, SB 3-bets to 4bb · Big blind to act

5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.8bbYour cards?
1bb
2bb
4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 93.7%Call 2.2%Raise 9.2bb 3%All-in 79.84bb 1.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when HJ opens 2bb, SB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

HJ opens 2bb, SB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 93.7%, calls 2.2%, raises 9.2bb 3% and goes all-in 79.84bb 1.1%. Always raise 9.2bb: AKs. Mixed: 77+, 22, ATs-AQs, A7s, A4s-A5s, A2s, KTs-KJs, K8s, K6s, K3s, QJs, JTs, T9s, 96s, 94s, 76s, 52s, AQo+.

Always fold
33-66, A8s-A9s, A6s, A3s, KQs, K9s, K7s, K4s-K5s, K2s, Q2s-QTs, J2s-J9s, T2s-T8s, 97s+, 95s, 92s-93s, 82s+, 72s-75s, 62s+, 53s+, 42s+, 32s, A2o-AJo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always raise 9.2bb
AKs
Always all-in 79.84bb
No hand plays this every time
Mixed
77+, 22, ATs-AQs, A7s, A4s-A5s, A2s, KTs-KJs, K8s, K6s, K3s, QJs, JTs, T9s, 96s, 94s, 76s, 52s, AQo+
Settings: 5-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.