PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN opens 2bb, SB 3-bets to 4bb · Big blind to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 7.64bbYour cards?

1bb

2bb

4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 86.8%Call 9.2%Raise 9.2bb 3.7%All-in 249.84bb 0.3%

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, SB 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN opens 2bb, SB 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 86.8%, calls 9.2%, raises 9.2bb 3.7% and goes all-in 249.84bb 0.3%. Always call: 77-88, AJs, KQs, JTs. Mixed: 99+, 22-66, AQs+, ATs, A2s-A8s, K9s-KJs, K5s-K6s, QTs+, Q7s, J8s, T8s+, T6s, 98s, 86s+, 76s, 65s, 52s-53s, AQo+, KQo, JTo.

Always fold: A9s, K7s-K8s, K2s-K4s, Q8s-Q9s, Q2s-Q6s, J9s, J2s-J7s, T7s, T2s-T5s, 92s-97s, 82s-85s, 72s-75s, 62s-64s, 54s, 42s+, 32s, A2o-AJo, K2o-KJo, Q2o+, J2o-J9o, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 77-88, AJs, KQs, JTs
Always raise 9.2bb: No hand plays this every time
Always all-in 249.84bb: No hand plays this every time
Mixed: 99+, 22-66, AQs+, ATs, A2s-A8s, K9s-KJs, K5s-K6s, QTs+, Q7s, J8s, T8s+, T6s, 98s, 86s+, 76s, 65s, 52s-53s, AQo+, KQo, JTo

Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.