PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs CO all-in

SB vs CO all-in

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · CO limps, SB isolates to 2.5bb, CO 3-bets to 5bb, SB 4-bets to 11.5bb, CO goes all-in · Small blind to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 53.3bbYour cards?
11.5bb
1bb
39.84bb

Tap your two cards.

Small blind's range

272 of 1,326 combos get here
Fold 67.1%Call 32.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when CO limps, SB isolates to 2.5bb, CO 3-bets to 5bb, SB 4-bets to 11.5bb, CO goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

CO limps, SB isolates to 2.5bb, CO 3-bets to 5bb, SB 4-bets to 11.5bb, CO goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the small blind (SB) folds 67.1% and calls 32.9%. Always call: TT+, AQs, AQo+. Mixed: 88-99, 66, ATs, A6s, KJs, ATo-AJo.

Always fold
A7s-A9s, A3s-A5s, KQs, K8s, QJs, Q9s, T8s, 97s+, 76s, 65s, 54s, A9o
Always call
TT+, AQs, AQo+
Mixed
88-99, 66, ATs, A6s, KJs, ATo-AJo
Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.