PokerSolver
PokerSolver/6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO opens 2bb, SB 3-bets to 4bb · Big blind to act

6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.96bbYour cards?
1bb
2bb
4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 89.9%Call 5.7%Raise 9.2bb 3.7%All-in 149.84bb 0.7%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2bb, SB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

CO opens 2bb, SB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the big blind (BB) folds 89.9%, calls 5.7%, raises 9.2bb 3.7% and goes all-in 149.84bb 0.7%. Always call: KJs. Always raise 9.2bb: AA. Mixed: 33-KK, A2s+, KQs, KTs, K8s, K3s, QJs, Q8s-Q9s, Q6s, JTs, J8s, T9s, 96s, 85s, 75s+, 54s, 43s, AQo+, KQo, JTo.

Always fold
22, K9s, K4s-K7s, K2s, QTs, Q7s, Q2s-Q5s, J9s, J2s-J7s, T2s-T8s, 97s+, 92s-95s, 86s+, 82s-84s, 72s-74s, 62s+, 52s-53s, 42s, 32s, A2o-AJo, K2o-KJo, Q2o+, J2o-J9o, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
KJs
Always raise 9.2bb
AA
Always all-in 149.84bb
No hand plays this every time
Mixed
33-KK, A2s+, KQs, KTs, K8s, K3s, QJs, Q8s-Q9s, Q6s, JTs, J8s, T9s, 96s, 85s, 75s+, 54s, 43s, AQo+, KQo, JTo
Settings: 6-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.4). 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.