PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 4-bet 11.5bb

BB vs SB 4-bet 11.5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb · Big blind to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 17.46bbYour cards?

5bb

11.5bb

Tap your two cards.

Big blind's range

974 of 1,326 combos get here

Fold 68%Call 17.9%All-in 39.84bb 14.1%

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

What is the GTO play for the big blind (BB) when SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 68%, calls 17.9% and goes all-in 39.84bb 14.1%. Always call: K8s, Q8s, T9s, KJo. Always all-in 39.84bb: TT-KK, 66, 44, AKs, AJs, KQs, AKo. Mixed: AA, 77-99, AQs, A8s-ATs, A2s-A3s, KTs-KJs, K5s, K3s, Q9s-QTs, Q6s-Q7s, J9s+, J3s-J6s, 97s+, 94s, 85s, 73s, 63s+, 52s, 43s, ATo-AQo, A8o, KQo, K9o, QJo, Q8o, JTo, T9o.

Always fold: T3s, 95s, 93s, 83s, 75s, 72s, 42s, A9o, A3o-A6o, K8o, K2o-K6o, Q2o-Q7o, J3o-J9o, T3o-T8o, 95o-97o, 84o-86o, 75o, 53o+
Always call: K8s, Q8s, T9s, KJo
Always all-in 39.84bb: TT-KK, 66, 44, AKs, AJs, KQs, AKo
Mixed: AA, 77-99, AQs, A8s-ATs, A2s-A3s, KTs-KJs, K5s, K3s, Q9s-QTs, Q6s-Q7s, J9s+, J3s-J6s, 97s+, 94s, 85s, 73s, 63s+, 52s, 43s, ATo-AQo, A8o, KQo, K9o, QJo, Q8o, JTo, T9o

Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.