PokerSolver
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 3bb, 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
Stacks (bb), if they differ
Pot 20.44bbYour cards?
6bb
13.8bb

Tap your two cards.

Big blind's range

710 of 1,326 combos get here
Fold 54.4%Call 38.2%All-in 79.84bb 7.5%
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 3bb, 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 3bb, 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 54.4%, calls 38.2% and goes all-in 79.84bb 7.5%. Always call: 55, AJs, A9s, K9s-KTs, K2s-K6s, QTs+, JTs, J8s, T8s+, 96s+, 85s+, 76s, 65s, 54s, AJo, KJo+, K9o. Always all-in 79.84bb: QQ-KK, AKs, AKo. Mixed: AA, 99-JJ, AQs, ATs, A3s-A5s, KJs+, J6s, 32s, AQo, A9o, A5o, T9o.

Always fold
J4s, T5s-T6s, T3s, 92s-94s, 84s, A6o, A2o-A4o, K4o, K2o, Q4o-Q7o, J5o-J8o, T6o-T7o, 96o+
Always call
55, AJs, A9s, K9s-KTs, K2s-K6s, QTs+, JTs, J8s, T8s+, 96s+, 85s+, 76s, 65s, 54s, AJo, KJo+, K9o
Always all-in 79.84bb
QQ-KK, AKs, AKo
Mixed
AA, 99-JJ, AQs, ATs, A3s-A5s, KJs+, J6s, 32s, AQo, A9o, A5o, T9o
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.