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

SB vs CO 3-bet 6bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · CO limps, SB isolates to 2bb, CO 3-bets to 6bb · Small blind to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 9.96bbYour cards?
2bb
1bb
6bb

Tap your two cards.

Small blind's range

408 of 1,326 combos get here
Fold 66%Call 6.5%Raise 13.8bb 10.7%All-in 39.84bb 16.8%
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 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

CO limps, SB isolates to 2bb, CO 3-bets to 6bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the small blind (SB) folds 66%, calls 6.5%, raises 13.8bb 10.7% and goes all-in 39.84bb 16.8%. Always raise 13.8bb: AA. Mixed: 88-KK, 66, A9s-AJs, A3s-A7s, K8s+, Q8s+, 87s, A9o+, KJo+.

Always fold
77, 55, K7s, J8s-J9s, T7s+, 96s+, 85s-86s, 74s+, 65s, 54s, A8o, KTo, QJo, JTo
Always call
No hand plays this every time
Always raise 13.8bb
AA
Always all-in 39.84bb
No hand plays this every time
Mixed
88-KK, 66, A9s-AJs, A3s-A7s, K8s+, Q8s+, 87s, A9o+, KJo+
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.

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.