PokerSolver/6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO all-in

BB vs CO all-in

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO limps, BB isolates to 3bb, CO 3-bets to 9bb, BB 4-bets to 20.7bb, CO goes all-in · Big blind to act

6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 272bbYour cards?

20.7bb

249.84bb

0.5bb

Tap your two cards.

Big blind's range

254 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 CO limps, BB isolates to 3bb, CO 3-bets to 9bb, BB 4-bets to 20.7bb, CO goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO limps, BB isolates to 3bb, CO 3-bets to 9bb, BB 4-bets to 20.7bb, CO goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the big blind (BB) folds 81.1% and calls 18.9%. Always call: AA. Mixed: QQ-KK, 77, AJs+, A8s-A9s, A6s, A2s, KQs, K9s-KTs, Q9s, JTs, T8s, 98s, 76s, AKo.

Always fold: JJ, 88, 55, ATs, A7s, A3s-A5s, KJs, QJs, J8s, T9s, 96s-97s, 86s, ATo
Always call: AA
Mixed: QQ-KK, 77, AJs+, A8s-A9s, A6s, A2s, KQs, K9s-KTs, Q9s, JTs, T8s, 98s, 76s, AKo

Settings: 6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 29.27). 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.