PokerSolver
PokerSolver/5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN opens 2bb, SB 3-bets to 4bb · Big blind to act

5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.8bbYour cards?
1bb
2bb
4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 85.5%Call 10.9%Raise 9.2bb 3.4%All-in 249.84bb 0.2%
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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

BTN opens 2bb, SB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the big blind (BB) folds 85.5%, calls 10.9%, raises 9.2bb 3.4% and goes all-in 249.84bb 0.2%. Always call: KK, 99-TT, 66-77, QTs, 54s. Mixed: AA, JJ-QQ, 88, 44-55, 22, A2s+, K8s+, K6s, K2s, QJs, Q8s-Q9s, Q5s, J7s+, T8s+, 97s+, 86s, 62s, AJo+, KQo, QJo.

Always fold
33, K7s, K3s-K5s, Q6s-Q7s, Q2s-Q4s, J2s-J6s, T2s-T7s, 92s-96s, 87s, 82s-85s, 72s+, 63s+, 52s-53s, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o-QTo, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
KK, 99-TT, 66-77, QTs, 54s
Always raise 9.2bb
No hand plays this every time
Always all-in 249.84bb
No hand plays this every time
Mixed
AA, JJ-QQ, 88, 44-55, 22, A2s+, K8s+, K6s, K2s, QJs, Q8s-Q9s, Q5s, J7s+, T8s+, 97s+, 86s, 62s, AJo+, KQo, QJo
Settings: 5-max · 250bb · 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, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.