PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN 3-bet 4bb

BB vs BTN 3-bet 4bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 2bb, BTN 3-bets to 4bb · 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 · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 8.14bbYour cards?

1bb

2bb

4bb

0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 88.7%Call 8.1%Raise 9.2bb 1.5%All-in 199.84bb 1.8%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2bb, BTN 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO opens 2bb, BTN 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the big blind (BB) folds 88.7%, calls 8.1%, raises 9.2bb 1.5% and goes all-in 199.84bb 1.8%. Always call: QQ, TT, 44, AJs, A8s. Mixed: KK+, JJ, 55-99, 22-33, AQs+, A9s-ATs, A3s-A7s, KJs+, K8s-K9s, K4s, Q9s+, Q6s, J9s+, T9s, 98s, 96s, 85s, AQo+, KQo.

Always fold: A2s, KTs, K5s-K7s, K2s-K3s, Q7s-Q8s, Q2s-Q5s, J2s-J8s, T2s-T8s, 97s, 92s-95s, 86s+, 82s-84s, 72s+, 62s+, 52s+, 42s+, 32s, A2o-AJo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: QQ, TT, 44, AJs, A8s
Always raise 9.2bb: No hand plays this every time
Always all-in 199.84bb: No hand plays this every time
Mixed: KK+, JJ, 55-99, 22-33, AQs+, A9s-ATs, A3s-A7s, KJs+, K8s-K9s, K4s, Q9s+, Q6s, J9s+, T9s, 98s, 96s, 85s, AQo+, KQo

Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.