PokerSolver
PokerSolver/4-max · 200bb · 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) · 200bb · 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 · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 210.18bbYour cards?
9.2bb
199.84bb
0.5bb

Tap your two cards.

Big blind's range

306 of 1,326 combos get here
Fold 81.1%Call 18.9%
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 200bb?

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, 200bb: the big blind (BB) folds 81.1% and calls 18.9%. Always call: AA, QQ. Mixed: KK, JJ, 88, 44, AKs, AJs, A9s, A5s, KJs, T9s, T5s, 65s, AKo.

Always fold
99, 55, 22, ATs, A7s, A4s, KQs, K9s, K7s, K2s, Q8s-QTs, Q2s-Q3s, JTs, T7s, 76s, 53s, QJo, JTo, T9o
Always call
AA, QQ
Mixed
KK, JJ, 88, 44, AKs, AJs, A9s, A5s, KJs, T9s, T5s, 65s, AKo
Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.