PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN all-in

BB vs BTN all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN limps, BB isolates to 3bb, BTN 3-bets to 6bb, BB 4-bets to 13.8bb, BTN goes all-in · Big blind to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 114.78bbYour cards?
13.8bb
99.84bb
0.5bb

Tap your two cards.

Big blind's range

448 of 1,326 combos get here
Fold 81.6%Call 18.4%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN limps, BB isolates to 3bb, BTN 3-bets to 6bb, BB 4-bets to 13.8bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

BTN limps, BB isolates to 3bb, BTN 3-bets to 6bb, BB 4-bets to 13.8bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 81.6% and calls 18.4%. Always call: QQ+, AKs, AKo. Mixed: 88-JJ, A9s-AQs, KQs, K9s-KTs, K7s, K5s, K3s, Q9s+, Q7s, J4s, T9s, 87s, 75s+, AQo.

Always fold
33-77, A3s-A8s, KJs, K8s, K6s, K4s, Q8s, J7s+, T6s-T8s, T3s-T4s, 96s+, 85s, 74s, 63s+, 53s+, ATo, KQo, KTo, QJo
Always call
QQ+, AKs, AKo
Mixed
88-JJ, A9s-AQs, KQs, K9s-KTs, K7s, K5s, K3s, Q9s+, Q7s, J4s, T9s, 87s, 75s+, AQo
Settings: 4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.