PokerSolver
PokerSolver/4-max · 100bb · 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) · 100bb · BTN limps, SB isolates to 3bb, BTN 3-bets to 6bb · Small blind to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 10.64bbYour cards?
3bb
1bb
6bb

Tap your two cards.

Small blind's range

534 of 1,326 combos get here
Fold 50.4%Call 28.7%Raise 13.8bb 14.3%All-in 99.84bb 6.6%
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 3bb, BTN 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

BTN limps, SB isolates to 3bb, BTN 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the small blind (SB) folds 50.4%, calls 28.7%, raises 13.8bb 14.3% and goes all-in 99.84bb 6.6%. Always call: 99, A6s, K8s, Q8s, 74s, 54s. Always raise 13.8bb: AA. Mixed: TT-KK, 55-88, A7s+, A2s-A5s, K9s+, K6s-K7s, K3s-K4s, Q9s+, Q7s, Q2s, J8s+, J5s-J6s, T7s+, 96s+, 85s+, 76s, 65s, ATo+, KTo+, JTo.

Always fold
Q4s, 64s, 53s, A9o, A5o, QTo+, J9o
Always call
99, A6s, K8s, Q8s, 74s, 54s
Always raise 13.8bb
AA
Always all-in 99.84bb
No hand plays this every time
Mixed
TT-KK, 55-88, A7s+, A2s-A5s, K9s+, K6s-K7s, K3s-K4s, Q9s+, Q7s, Q2s, J8s+, J5s-J6s, T7s+, 96s+, 85s+, 76s, 65s, ATo+, KTo+, JTo
Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.