PokerSolver
PokerSolver/6-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 4-bet 9.2bb

BB vs BTN 4-bet 9.2bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN opens 2bb, BB 3-bets to 4bb, BTN 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 · 100bb · 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

350 of 1,326 combos get here
Fold 33.5%Call 45.5%All-in 99.84bb 20.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2bb, BB 3-bets to 4bb, BTN 4-bets to 9.2bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

BTN opens 2bb, BB 3-bets to 4bb, BTN 4-bets to 9.2bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 33.5%, calls 45.5% and goes all-in 99.84bb 20.9%. Always call: 55-66, KQs, J9s. Always all-in 99.84bb: AKs. Mixed: KK, TT-JJ, 77-88, A2s-ATs, K7s-KJs, K3s, QJs, Q8s-Q9s, JTs, J8s, T8s+, 97s, 86s, 76s, 65s, 53s, AQo, ATo, KJo+, QJo.

Always fold
96s, JTo
Always call
55-66, KQs, J9s
Always all-in 99.84bb
AKs
Mixed
KK, TT-JJ, 77-88, A2s-ATs, K7s-KJs, K3s, QJs, Q8s-Q9s, JTs, J8s, T8s+, 97s, 86s, 76s, 65s, 53s, AQo, ATo, KJo+, QJo
Settings: 6-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.89). 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.

Tree: Two HRC solves of this game in one, callers first: the callers solve (its raises grow by 1bb, or 1x, for each player who called before) has every one of the 1,323 spots here, so the base solve gives none of them.

This spot: from the callers solve (sizes: opens 2.0bb + 1.0bb, 2.5bb + 1.0bb, 3.0bb + 1.0bb; 3-bets 2.0x + 1.0x, 3.0x + 1.0x; 4-bets 2.3x, all-in; 5-bets all-in; HRC CI 24.58).

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.