PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs CO 4-bet 9.2bb

BB vs CO 4-bet 9.2bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · 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
4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 14.34bbYour cards?
4bb
9.2bb
0.5bb

Tap your two cards.

Big blind's range

374 of 1,326 combos get here
Fold 58.8%Call 33.6%All-in 99.84bb 7.6%
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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

CO opens 2bb, BB 3-bets to 4bb, CO 4-bets to 9.2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 58.8%, calls 33.6% and goes all-in 99.84bb 7.6%. Always call: JJ, 77-99, 44-55, AQs, A9s. Always all-in 99.84bb: KK+. Mixed: QQ, TT, AKs, ATs-AJs, A7s, A5s, A2s-A3s, KTs+, QTs+, J9s+, T7s+, 97s, 86s+, 75s+, 64s, AQo+, ATo.

Always fold
Q6s, J7s-J8s, J5s, T5s, 98s, 85s, 63s, 54s, 42s, QJo, 65o
Always call
JJ, 77-99, 44-55, AQs, A9s
Always all-in 99.84bb
KK+
Mixed
QQ, TT, AKs, ATs-AJs, A7s, A5s, A2s-A3s, KTs+, QTs+, J9s+, T7s+, 97s, 86s+, 75s+, 64s, AQo+, ATo
Settings: 4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.