PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO 4-bet 9.2bb

BB vs CO 4-bet 9.2bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · CO opens 2bb, BB 3-bets to 4bb, CO 4-bets to 9.2bb · Big blind to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 14.66bbYour cards?
4bb
9.2bb
0.5bb

Tap your two cards.

Big blind's range

470 of 1,326 combos get here
Fold 70.7%Call 10.2%All-in 39.84bb 19.2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2bb, BB 3-bets to 4bb, CO 4-bets to 9.2bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

CO opens 2bb, BB 3-bets to 4bb, CO 4-bets to 9.2bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 70.7%, calls 10.2% and goes all-in 39.84bb 19.2%. Always all-in 39.84bb: KK, AQs+, AKo. Mixed: AA, QQ, 77-TT, A8s-AJs, A5s, A2s, KQs, KTs, QTs+, Q5s, JTs, 65s, ATo-AQo, A4o, KTo.

Always fold
Q9s, Q7s, J9s, T5s, 95s, 85s, 75s, 73s, A9o, KJo, QJo, JTo, T8o+, 98o
Always call
No hand plays this every time
Always all-in 39.84bb
KK, AQs+, AKo
Mixed
AA, QQ, 77-TT, A8s-AJs, A5s, A2s, KQs, KTs, QTs+, Q5s, JTs, 65s, ATo-AQo, A4o, KTo
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.

Rake sources for the games it fits: 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.