PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN 3-bet 6bb

SB vs BTN 3-bet 6bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · BTN limps, SB isolates to 2bb, BTN 3-bets to 6bb · Small blind to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 9.64bbYour cards?
2bb
1bb
6bb

Tap your two cards.

Small blind's range

534 of 1,326 combos get here
Fold 52.3%Call 30.2%Raise 13.8bb 11.9%All-in 149.84bb 5.7%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when BTN limps, SB isolates to 2bb, BTN 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

BTN limps, SB isolates to 2bb, BTN 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the small blind (SB) folds 52.3%, calls 30.2%, raises 13.8bb 11.9% and goes all-in 149.84bb 5.7%. Always call: TT-JJ, 88, 22-55, ATs, A7s, A4s-A5s, K6s, 54s. Always raise 13.8bb: AA, KQs. Always all-in 149.84bb: AKo. Mixed: QQ-KK, 99, 66-77, AJs+, A8s-A9s, A6s, A3s, K7s-KJs, K4s-K5s, K2s, Q5s+, J7s+, T8s+, 97s+, 86s+, 75s+, 65s, ATo-AQo, KJo+.

Always fold
Q4s, Q2s, T7s, 96s, 74s, 64s, 53s, A7o-A9o, A5o, K9o-KTo, QTo+, J9o+, T8o+, 98o, 65o
Always call
TT-JJ, 88, 22-55, ATs, A7s, A4s-A5s, K6s, 54s
Always raise 13.8bb
AA, KQs
Always all-in 149.84bb
AKo
Mixed
QQ-KK, 99, 66-77, AJs+, A8s-A9s, A6s, A3s, K7s-KJs, K4s-K5s, K2s, Q5s+, J7s+, T8s+, 97s+, 86s+, 75s+, 65s, ATo-AQo, KJo+
Settings: 4-max · 150bb · 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, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.