PokerSolver
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 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb, SB goes all-in · Big blind to act

Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 113.96bbYour cards?
13.8bb
99.84bb

Tap your two cards.

Big blind's range

498 of 1,326 combos get here
Fold 80.1%Call 19.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the big blind (BB) folds 80.1% and calls 19.9%. Always call: 99+, AQs, AQo+. Mixed: 77-88, 33, ATs, A5s, J9s, ATo-AJo, KJo.

Always fold
55, A2s-A4s, K7s-KTs, K3s-K5s, QJs, Q9s, Q7s, Q5s, T7s+, 97s+, 95s, 65s, 54s, A9o, A5o, KQo, QTo+, 75o
Always call
99+, AQs, AQo+
Mixed
77-88, 33, ATs, A5s, J9s, ATo-AJo, KJo
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.