PokerSolver/Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB all-in

BB vs SB all-in

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB limps, BB isolates to 3bb, SB 3-bets to 9bb, BB 4-bets to 20.7bb, SB goes all-in · Big blind to act

Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differSBBB

Pot 120.86bbYour cards?

20.7bb

99.84bb

Tap your two cards.

Big blind's range

610 of 1,326 combos get here

Fold 83.8%Call 16.2%

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

What is the GTO play for the big blind (BB) when SB limps, BB isolates to 3bb, SB 3-bets to 9bb, BB 4-bets to 20.7bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB limps, BB isolates to 3bb, SB 3-bets to 9bb, BB 4-bets to 20.7bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the big blind (BB) folds 83.8% and calls 16.2%. Always call: TT+, AJs+, AQo+. Mixed: 55-99, 33, ATs, KTs+, QTs+, JTs.

Always fold: A2s-A9s, K3s-K9s, Q6s-Q9s, Q2s-Q4s, J5s-J9s, T2s+, 95s+, 85s+, 75s+, 73s, 64s+, 62s, 52s+, A7o-AJo, A5o, K9o+, QTo+, J9o+, 65o
Always call: TT+, AJs+, AQo+
Mixed: 55-99, 33, ATs, KTs+, QTs+, JTs

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.

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.