PokerSolver
PokerSolver/4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs CO 3-bet 6bb

SB vs CO 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 limps, SB isolates to 2bb, CO 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 9.64bbYour cards?
2bb
1bb
6bb

Tap your two cards.

Small blind's range

362 of 1,326 combos get here
Fold 59%Call 17.8%Raise 13.8bb 15.3%All-in 79.84bb 7.9%
Tap a hand, or type one above, to see its exact mix.

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

CO limps, SB isolates to 2bb, CO 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 59%, calls 17.8%, raises 13.8bb 15.3% and goes all-in 79.84bb 7.9%. Always call: 55. Always raise 13.8bb: AA. Mixed: 66-KK, A3s+, KTs+, K8s, K5s, Q9s+, Q7s, JTs, T9s, T7s, 98s, 87s, 76s, 64s+, 54s, AJo+, KQo, JTo.

Always fold
A2s, K9s, K7s, K3s-K4s, J8s-J9s, T8s, 96s-97s, 86s, 75s, 63s, 43s, ATo, KTo-KJo, QTo+
Always call
55
Always raise 13.8bb
AA
Always all-in 79.84bb
No hand plays this every time
Mixed
66-KK, A3s+, KTs+, K8s, K5s, Q9s+, Q7s, JTs, T9s, T7s, 98s, 87s, 76s, 64s+, 54s, AJo+, KQo, JTo
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.