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

SB vs BB 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 limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb · Small blind / button to act

Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differSBBB

Pot 20.12bbYour cards?

6bb

13.8bb

Tap your two cards.

Small blind / button's range

762 of 1,326 combos get here

Fold 49.3%Call 39.5%All-in 79.84bb 11.2%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind / button (SB) when SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 80bb?

SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 80bb: the small blind / button (SB) folds 49.3%, calls 39.5% and goes all-in 79.84bb 11.2%. Always call: AA, K7s, Q5s, ATo-AJo, A5o, KJo, QTo, T9o. Always all-in 79.84bb: KK, 99, AKs, AQo. Mixed: TT-QQ, 66-88, 22-33, AQs, A7s, K9s, K6s, K3s, Q2s-Q3s, J2s, T6s, 95s-97s, 86s, 74s, 52s, AKo, A6o-A9o, A2o-A4o, KQo, K8o-KTo, QJo, Q9o, J9o+, 76o.

Always fold: J5s, T3s, 94s, 92s, 84s, 82s, 32s, K7o, Q4o-Q5o, Q2o, J5o, T4o-T5o, 84o, 64o, 43o
Always call: AA, K7s, Q5s, ATo-AJo, A5o, KJo, QTo, T9o
Always all-in 79.84bb: KK, 99, AKs, AQo
Mixed: TT-QQ, 66-88, 22-33, AQs, A7s, K9s, K6s, K3s, Q2s-Q3s, J2s, T6s, 95s-97s, 86s, 74s, 52s, AKo, A6o-A9o, A2o-A4o, KQo, K8o-KTo, QJo, Q9o, J9o+, 76o

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.

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.