PokerSolver
PokerSolver/4-max · 100bb · 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) · 100bb · SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb · Big blind to act

4-max · 100bb · 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

1,242 of 1,326 combos get here
Fold 71.4%Call 22.6%All-in 99.84bb 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 100bb?

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, 100bb: the big blind (BB) folds 71.4%, calls 22.6% and goes all-in 99.84bb 6%. Always call: AA, 22-TT, AJs-AQs, K8s+, K6s, K4s, Q9s+, Q6s, J8s+, T6s+, 97s+, 86s, 64s+, 54s, KJo+. Always all-in 99.84bb: QQ-KK, AKo. Mixed: JJ, AKs, A2s-ATs, K7s, K5s, K3s, Q7s-Q8s, Q5s, Q2s, J4s, J2s, 96s, 94s, 87s, 85s, 75s+, 62s-63s, 52s-53s, 42s, ATo-AQo, A4o, KTo, QTo+, JTo.

Always fold
J3s, T5s, T2s-T3s, 95s, 92s-93s, 82s-83s, 72s, 32s, A8o, A5o-A6o, A2o-A3o, K8o, K4o-K6o, K2o, Q4o-Q9o, Q2o, J2o-J9o, T2o+, 92o-97o, 84o+, 73o+, 63o+, 54o, 52o, 42o+, 32o
Always call
AA, 22-TT, AJs-AQs, K8s+, K6s, K4s, Q9s+, Q6s, J8s+, T6s+, 97s+, 86s, 64s+, 54s, KJo+
Always all-in 99.84bb
QQ-KK, AKo
Mixed
JJ, AKs, A2s-ATs, K7s, K5s, K3s, Q7s-Q8s, Q5s, Q2s, J4s, J2s, 96s, 94s, 87s, 85s, 75s+, 62s-63s, 52s-53s, 42s, ATo-AQo, A4o, KTo, QTo+, JTo
Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.