PokerSolver/4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 4-bet 13.8bb

BB vs SB 4-bet 13.8bb

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 6bb, SB 4-bets to 13.8bb · Big 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 20.44bbYour cards?

6bb

13.8bb

Tap your two cards.

Big blind's range

1,224 of 1,326 combos get here

Fold 75.7%Call 15.7%All-in 79.84bb 8.6%

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

SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the big blind (BB) folds 75.7%, calls 15.7% and goes all-in 79.84bb 8.6%. Always call: AA, 88, 55-66, AJs, JTs, T9s, AJo. Always all-in 79.84bb: QQ, AKs, A7s, QJs, AKo. Mixed: KK, 99-JJ, 77, 33-44, AQs, A8s-ATs, A2s-A6s, K9s+, K7s, K3s-K5s, Q5s-QTs, Q2s, J8s-J9s, J5s, T7s-T8s, T5s, 96s+, 85s+, 75s+, 62s+, 54s, 52s, 42s, AQo, A4o-A6o, KTo+, 98o.

Always fold: K2s, Q4s, J6s, J2s-J4s, T6s, T3s-T4s, 92s-95s, 72s-74s, 43s, 32s, A7o-ATo, A2o-A3o, K2o-K9o, QTo+, Q8o, Q4o-Q6o, Q2o, J4o+, J2o, T2o+, 92o-97o, 83o+, 74o+, 62o-64o, 52o+, 42o+
Always call: AA, 88, 55-66, AJs, JTs, T9s, AJo
Always all-in 79.84bb: QQ, AKs, A7s, QJs, AKo
Mixed: KK, 99-JJ, 77, 33-44, AQs, A8s-ATs, A2s-A6s, K9s+, K7s, K3s-K5s, Q5s-QTs, Q2s, J8s-J9s, J5s, T7s-T8s, T5s, 96s+, 85s+, 75s+, 62s+, 54s, 52s, 42s, AQo, A4o-A6o, KTo+, 98o

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.