PokerSolver
PokerSolver/4-max · 250bb · 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) · 250bb · BTN limps, BB isolates to 2bb, BTN 3-bets to 4bb, BB 4-bets to 9.2bb, BTN goes all-in · Big blind to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 260.18bbYour cards?
9.2bb
249.84bb
0.5bb

Tap your two cards.

Big blind's range

340 of 1,326 combos get here
Fold 79.4%Call 20.6%
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 2bb, BTN 3-bets to 4bb, BB 4-bets to 9.2bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN limps, BB isolates to 2bb, BTN 3-bets to 4bb, BB 4-bets to 9.2bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 79.4% and calls 20.6%. Always call: AA, QQ. Mixed: KK, JJ, 99, 66-77, AJs+, A8s-A9s, A5s, A3s, KTs+, K2s-K3s, J8s, J5s, T7s, 86s, 64s, 53s, AKo.

Always fold
ATs, A7s, A2s, K7s, Q9s+, Q6s, JTs, J2s, T8s+, T6s, 87s, 83s, 76s, KQo
Always call
AA, QQ
Mixed
KK, JJ, 99, 66-77, AJs+, A8s-A9s, A5s, A3s, KTs+, K2s-K3s, J8s, J5s, T7s, 86s, 64s, 53s, AKo
Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.