PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 3-bet 4bb

BB vs BTN 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 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

Tournament

5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differHJCOBTNSBBB

Pot 8.3bbYour cards?

1bb

2bb

4bb

0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 87.8%Call 8.6%Raise 9.2bb 1.5%All-in 199.84bb 2.1%

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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

CO opens 2bb, BTN 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the big blind (BB) folds 87.8%, calls 8.6%, raises 9.2bb 1.5% and goes all-in 199.84bb 2.1%. Always call: JJ, 55, A8s, A4s, AQo. Mixed: QQ+, 66-TT, 44, 22, A9s+, A5s-A7s, A2s-A3s, K7s+, K5s, K2s, Q9s+, Q7s, Q4s, 97s+, 87s, 76s, 74s, 64s, 54s, AKo, AJo, KQo.

Always fold: 33, K6s, K3s-K4s, Q8s, Q5s-Q6s, Q2s-Q3s, J2s+, T2s+, 92s-96s, 82s-86s, 75s, 72s-73s, 65s, 62s-63s, 52s-53s, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: JJ, 55, A8s, A4s, AQo
Always raise 9.2bb: No hand plays this every time
Always all-in 199.84bb: No hand plays this every time
Mixed: QQ+, 66-TT, 44, 22, A9s+, A5s-A7s, A2s-A3s, K7s+, K5s, K2s, Q9s+, Q7s, Q4s, 97s+, 87s, 76s, 74s, 64s, 54s, AKo, AJo, KQo

Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.