PokerSolver
PokerSolver/Heads-up · 100bb · 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) · 100bb · SB opens 2bb, 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
Heads-up · 100bb · 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

922 of 1,326 combos get here
Fold 65.4%Call 25.6%All-in 99.84bb 9%
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 Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB opens 2bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the big blind (BB) folds 65.4%, calls 25.6% and goes all-in 99.84bb 9%. Always call: 22-88, A9s, KTs, Q9s-QTs, J8s, T8s+, 87s, ATo-AJo, KJo, QJo. Always all-in 99.84bb: QQ-KK, TT, AKs, AKo. Mixed: AA, JJ, 99, ATs-AQs, A2s-A8s, KJs+, K9s, K5s-K7s, K3s, QJs, Q8s, Q3s-Q4s, J9s+, J5s-J7s, T7s, T5s, 97s+, 86s, 75s+, 64s+, 62s, 53s+, 43s, AQo, A4o-A5o, KQo, KTo, QTo, 76o.

Always fold
K8s, K4s, K2s, Q5s-Q7s, Q2s, J2s-J4s, T6s, T3s-T4s, 92s-96s, 82s-85s, 72s-74s, 63s, 42s, 32s, A7o-A9o, A3o, K8o-K9o, Q9o, J8o+, T7o+, 97o+, 87o, 75o, 65o, 54o
Always call
22-88, A9s, KTs, Q9s-QTs, J8s, T8s+, 87s, ATo-AJo, KJo, QJo
Always all-in 99.84bb
QQ-KK, TT, AKs, AKo
Mixed
AA, JJ, 99, ATs-AQs, A2s-A8s, KJs+, K9s, K5s-K7s, K3s, QJs, Q8s, Q3s-Q4s, J9s+, J5s-J7s, T7s, T5s, 97s+, 86s, 75s+, 64s+, 62s, 53s+, 43s, AQo, A4o-A5o, KQo, KTo, QTo, 76o
Settings: Heads-up · 100bb · 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, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.