PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 4-bet 13.8bb

BB vs SB 4-bet 13.8bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb · Big blind to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 20.76bbYour cards?
6bb
13.8bb

Tap your two cards.

Big blind's range

1,246 of 1,326 combos get here
Fold 78.7%Call 7.9%All-in 39.84bb 13.4%
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 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 78.7%, calls 7.9% and goes all-in 39.84bb 13.4%. Always call: A7s. Always all-in 39.84bb: 88-KK, 44, AJs+, AJo+. Mixed: AA, 77, 55, A8s-ATs, A2s-A5s, K8s+, K3s-K6s, Q8s+, JTs, J7s, J4s, T8s+, 96s+, 85s+, 83s, 54s, A8o-ATo, KTo+, QJo, Q9o, JTo.

Always fold
K2s, Q5s-Q6s, Q3s, J8s, J5s, J2s-J3s, T5s-T7s, T3s, 92s-94s, 84s, 82s, 72s-74s, 65s, 62s, 52s-53s, 42s+, 32s, A2o-A6o, K9o, K3o-K6o, Q8o, Q2o-Q6o, J2o-J9o, T2o+, 92o+, 82o+, 75o+, 73o, 65o, 63o, 54o, 52o, 43o
Always call
A7s
Always all-in 39.84bb
88-KK, 44, AJs+, AJo+
Mixed
AA, 77, 55, A8s-ATs, A2s-A5s, K8s+, K3s-K6s, Q8s+, JTs, J7s, J4s, T8s+, 96s+, 85s+, 83s, 54s, A8o-ATo, KTo+, QJo, Q9o, JTo
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.