PokerSolver
PokerSolver/4-max · 80bb · 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) · 80bb · CO opens 2bb, BTN 3-bets to 6bb · Small blind to act

4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 10.14bbYour cards?
0.5bb
1bb
2bb
6bb

Tap your two cards.

Small blind's range

1,326 of 1,326 combos get here
Fold 92.8%Call 0.4%Raise 13.8bb 4.8%All-in 79.84bb 2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when CO opens 2bb, BTN 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?

CO opens 2bb, BTN 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 92.8%, calls 0.4%, raises 13.8bb 4.8% and goes all-in 79.84bb 2%. Always raise 13.8bb: QQ+, AKs, AQo. Always all-in 79.84bb: KQs. Mixed: 88-JJ, 66, AJs-AQs, A7s-A8s, A5s, A3s, K9s-KJs, QJs, JTs, AKo.

Always fold
77, 22-55, A9s-ATs, A6s, A4s, A2s, K2s-K8s, Q2s-QTs, J2s-J9s, T2s+, 92s+, 82s+, 72s+, 62s+, 52s+, 42s+, 32s, A2o-AJo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always raise 13.8bb
QQ+, AKs, AQo
Always all-in 79.84bb
KQs
Mixed
88-JJ, 66, AJs-AQs, A7s-A8s, A5s, A3s, K9s-KJs, QJs, JTs, AKo
Settings: 4-max · 80bb · 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, 80bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.