PokerSolver
PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs BB 3-bet 4bb

BTN vs BB 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · BTN opens 2bb, BB 3-bets to 4bb · Button to act

6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.46bbYour cards?
2bb
0.5bb
4bb

Tap your two cards.

Button's range

614 of 1,326 combos get here
Fold 21.6%Call 51.1%All-in 19.84bb 27.3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when BTN opens 2bb, BB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

BTN opens 2bb, BB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the button (BTN) folds 21.6%, calls 51.1% and goes all-in 19.84bb 27.3%. Always call: AA, 55, A8s, KQs, KTs, K6s-K7s, K4s, QJs, Q7s-Q8s, J9s+, J7s, T8s+, T6s, 87s, 75s, KQo, KTo, QTo+, JTo. Always all-in 19.84bb: TT-JJ, AKs, AJs, ATo+. Mixed: QQ-KK, 66-99, 44, AQs, A9s-ATs, A3s-A7s, KJs, K8s, K5s, K3s, Q9s-QTs, Q4s-Q6s, J8s, J5s, T7s, T5s, 96s+, 86s, A2o-A9o, KJo, K8o-K9o, Q8o-Q9o, J8o-J9o, T8o+, 98o.

Always fold
J6s, K6o-K7o
Always call
AA, 55, A8s, KQs, KTs, K6s-K7s, K4s, QJs, Q7s-Q8s, J9s+, J7s, T8s+, T6s, 87s, 75s, KQo, KTo, QTo+, JTo
Always all-in 19.84bb
TT-JJ, AKs, AJs, ATo+
Mixed
QQ-KK, 66-99, 44, AQs, A9s-ATs, A3s-A7s, KJs, K8s, K5s, K3s, Q9s-QTs, Q4s-Q6s, J8s, J5s, T7s, T5s, 96s+, 86s, A2o-A9o, KJo, K8o-K9o, Q8o-Q9o, J8o-J9o, T8o+, 98o
Settings: 6-max · 20bb · 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, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.