PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN 3-bet 4bb

SB vs BTN 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · BTN limps, SB isolates to 2bb, BTN 3-bets to 4bb · Small 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 · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.96bbYour cards?
2bb
1bb
4bb

Tap your two cards.

Small blind's range

430 of 1,326 combos get here
Fold 35.4%Call 22.6%Raise 9.2bb 15.7%All-in 39.84bb 26.3%
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 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

BTN limps, SB isolates to 2bb, BTN 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the small blind (SB) folds 35.4%, calls 22.6%, raises 9.2bb 15.7% and goes all-in 39.84bb 26.3%. Always all-in 39.84bb: 77. Mixed: 88-JJ, 55-66, AKs, AJs, A3s-A9s, KQs, K5s-KTs, Q6s-QTs, JTs, J7s-J8s, T8s+, 97s, 86s+, 75s+, 65s, 54s, A8o+, KJo+, QTo+, JTo.

Always fold
J9s, T7s, KTo, T9o
Always call
No hand plays this every time
Always raise 9.2bb
No hand plays this every time
Always all-in 39.84bb
77
Mixed
88-JJ, 55-66, AKs, AJs, A3s-A9s, KQs, K5s-KTs, Q6s-QTs, JTs, J7s-J8s, T8s+, 97s, 86s+, 75s+, 65s, 54s, A8o+, KJo+, QTo+, JTo
Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.