PokerSolver
PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO all-in

BB vs CO all-in

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO limps, BB isolates to 3bb, CO 3-bets to 6bb, BB 4-bets to 13.8bb, CO goes all-in · Big blind to act

5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 214.94bbYour cards?
13.8bb
199.84bb
0.5bb

Tap your two cards.

Big blind's range

342 of 1,326 combos get here
Fold 74.2%Call 25.8%
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 6bb, BB 4-bets to 13.8bb, CO goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

CO limps, BB isolates to 3bb, CO 3-bets to 6bb, BB 4-bets to 13.8bb, CO goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the big blind (BB) folds 74.2% and calls 25.8%. Always call: AA, 55. Mixed: JJ-KK, 77-99, 33-44, AJs+, A7s-A9s, A4s-A5s, A2s, KTs-KJs, K8s, K4s, Q6s, J9s+, T9s, 97s+, 76s, AKo, ATo, KQo.

Always fold
ATs, A6s, A3s, K9s, K7s, Q8s+, T7s-T8s, 96s, 75s, 53s, QJo
Always call
AA, 55
Mixed
JJ-KK, 77-99, 33-44, AJs+, A7s-A9s, A4s-A5s, A2s, KTs-KJs, K8s, K4s, Q6s, J9s+, T9s, 97s+, 76s, AKo, ATo, KQo
Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.