PokerSolver
PokerSolver/5-max · 80bb · 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) · 80bb · CO opens 2bb, SB 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
5-max · 80bb · 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 92%Call 3%Raise 9.2bb 3.9%All-in 79.84bb 1.1%
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, SB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

CO opens 2bb, SB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 92%, calls 3%, raises 9.2bb 3.9% and goes all-in 79.84bb 1.1%. Always raise 9.2bb: AA, JJ. Mixed: QQ-KK, 77-TT, 33, A8s+, A2s-A4s, K8s+, K3s, QJs, Q8s-Q9s, J9s+, J5s, T8s, T6s, T3s, 87s, 83s, 54s, AJo+.

Always fold
44-66, 22, A5s-A7s, K4s-K7s, K2s, QTs, Q2s-Q7s, J6s-J8s, J2s-J4s, T9s, T7s, T4s-T5s, T2s, 92s+, 84s-86s, 82s, 72s+, 62s+, 52s-53s, 42s+, 32s, A2o-ATo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always raise 9.2bb
AA, JJ
Always all-in 79.84bb
No hand plays this every time
Mixed
QQ-KK, 77-TT, 33, A8s+, A2s-A4s, K8s+, K3s, QJs, Q8s-Q9s, J9s+, J5s, T8s, T6s, T3s, 87s, 83s, 54s, AJo+
Settings: 5-max · 80bb · 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, 80bb stacks, 5% rake capped at 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.