PokerSolver
PokerSolver/4-max · 150bb · 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) · 150bb · CO limps, SB isolates to 2bb, CO 3-bets to 6bb · Small blind to act

4-max · 150bb · 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

472 of 1,326 combos get here
Fold 63.7%Call 21.8%Raise 13.8bb 8.9%All-in 149.84bb 5.5%
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 150bb?

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, 150bb: the small blind (SB) folds 63.7%, calls 21.8%, raises 13.8bb 8.9% and goes all-in 149.84bb 5.5%. Always call: 88, 33-55, A4s. Always all-in 149.84bb: KK, AKo. Mixed: AA, 99-QQ, 66-77, A5s+, A3s, K7s+, Q9s+, J8s+, T7s+, 98s, 87s, 64s+, 54s, AQo, KQo.

Always fold
K6s, K4s, K2s, Q8s, Q5s-Q6s, Q2s, T6s, 96s-97s, 86s, 75s+, 53s, ATo-AJo, A8o, KTo, QTo+, JTo, T9o, 65o
Always call
88, 33-55, A4s
Always raise 13.8bb
No hand plays this every time
Always all-in 149.84bb
KK, AKo
Mixed
AA, 99-QQ, 66-77, A5s+, A3s, K7s+, Q9s+, J8s+, T7s+, 98s, 87s, 64s+, 54s, AQo, KQo
Settings: 4-max · 150bb · 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, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.