PokerSolver
PokerSolver/Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB 4-bet 13.8bb

BB vs SB 4-bet 13.8bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (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

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
Tournament
Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 20.12bbYour cards?
6bb
13.8bb

Tap your two cards.

Big blind's range

680 of 1,326 combos get here
Fold 57.5%Call 33.8%All-in 79.84bb 8.7%
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 Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 80bb?

SB opens 3bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 80bb: the big blind (BB) folds 57.5%, calls 33.8% and goes all-in 79.84bb 8.7%. Always call: 66, 44, ATs-AJs, A8s, K9s-KJs, K3s, QTs+, JTs, 64s+, ATo-AQo, KQo. Always all-in 79.84bb: JJ-KK, AKs, AKo. Mixed: AA, 77-TT, 55, 33, AQs, A9s, A2s-A7s, KQs, K4s-K8s, Q6s-Q9s, Q2s, J7s-J8s, T8s+, 97s+, 86s+, 75s+, 73s, 54s, 43s, KTo-KJo, QJo.

Always fold
J9s, J5s, T4s-T7s, 93s-95s, 84s-85s, 74s, 53s, A8o-A9o, A5o, A3o, K7o-K9o, QTo, Q8o, J9o, T9o, T7o, 97o+, 86o+
Always call
66, 44, ATs-AJs, A8s, K9s-KJs, K3s, QTs+, JTs, 64s+, ATo-AQo, KQo
Always all-in 79.84bb
JJ-KK, AKs, AKo
Mixed
AA, 77-TT, 55, 33, AQs, A9s, A2s-A7s, KQs, K4s-K8s, Q6s-Q9s, Q2s, J7s-J8s, T8s+, 97s+, 86s+, 75s+, 73s, 54s, 43s, KTo-KJo, QJo
Settings: Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 22.38). 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.

Rake sources for the games it fits: 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.