PokerSolver
PokerSolver/6-max · 150bb · 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) · 150bb · CO limps, BB isolates to 2.5bb, CO 3-bets to 7.5bb, BB 4-bets to 17.25bb, CO goes all-in · Big blind to act

6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 168.55bbYour cards?
17.25bb
149.84bb
0.5bb

Tap your two cards.

Big blind's range

284 of 1,326 combos get here
Fold 78.3%Call 21.7%
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 2.5bb, CO 3-bets to 7.5bb, BB 4-bets to 17.25bb, CO goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

CO limps, BB isolates to 2.5bb, CO 3-bets to 7.5bb, BB 4-bets to 17.25bb, CO goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the big blind (BB) folds 78.3% and calls 21.7%. Always call: AA, 88. Mixed: 99-KK, 66, ATs+, A6s, A3s-A4s, K9s+, Q9s, J9s, T8s+, AQo+, ATo, KQo.

Always fold
55, A7s-A8s, A5s, K8s, K6s, QTs+, JTs, T7s, 97s+, 87s, 65s
Always call
AA, 88
Mixed
99-KK, 66, ATs+, A6s, A3s-A4s, K9s+, Q9s, J9s, T8s+, AQo+, ATo, KQo
Settings: 6-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.4). 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.