PokerSolver
PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · SB limps, BB isolates to 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
6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 6.96bbYour cards?
2bb
4bb

Tap your two cards.

Big blind's range

690 of 1,326 combos get here
Fold 19.4%Call 61.1%All-in 19.84bb 19.5%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB limps, BB isolates to 2bb, SB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

SB limps, BB isolates to 2bb, SB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the big blind (BB) folds 19.4%, calls 61.1% and goes all-in 19.84bb 19.5%. Always call: A3s, KJs, K8s-K9s, K6s, Q7s-Q9s, Q5s, Q3s, J8s, T7s, KJo, K5o-K6o, QTo+, Q6o, JTo, J6o, 84o, 76o. Always all-in 19.84bb: QQ+, AQs, ATs, AQo+, ATo, A6o. Mixed: A4s-A6s, A2s, K7s, J9s+, T8s+, 97s+, 95s, 87s, 76s, 54s, KQo, J5o, T3o-T6o, 94o-95o, 85o, 73o-75o, 64o.

Always fold
83o, 65o, 43o
Always call
A3s, KJs, K8s-K9s, K6s, Q7s-Q9s, Q5s, Q3s, J8s, T7s, KJo, K5o-K6o, QTo+, Q6o, JTo, J6o, 84o, 76o
Always all-in 19.84bb
QQ+, AQs, ATs, AQo+, ATo, A6o
Mixed
A4s-A6s, A2s, K7s, J9s+, T8s+, 97s+, 95s, 87s, 76s, 54s, KQo, J5o, T3o-T6o, 94o-95o, 85o, 73o-75o, 64o
Settings: 6-max · 20bb · 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, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.