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

CO vs SB 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · CO opens 2bb, SB 3-bets to 4bb · Cutoff to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.96bbYour cards?
2bb
4bb
1bb

Tap your two cards.

Cutoff's range

422 of 1,326 combos get here
Fold 4.5%Call 82.4%Raise 9.2bb 10.3%All-in 39.84bb 2.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO opens 2bb, SB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

CO opens 2bb, SB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the cutoff (CO) folds 4.5%, calls 82.4%, raises 9.2bb 10.3% and goes all-in 39.84bb 2.8%. Always call: 33-77, A4s-A9s, KJs, K5s-K9s, Q8s+, J9s+, J7s, T7s+, 97s+, 87s, 76s, 65s, A4o, KJo+, K9o, JTo. Always raise 9.2bb: KK+, AKs. Mixed: TT-QQ, 88, ATs-AQs, AJo, A6o-A9o, KTo, QTo, T9o.

Always fold
No hand plays this every time
Always call
33-77, A4s-A9s, KJs, K5s-K9s, Q8s+, J9s+, J7s, T7s+, 97s+, 87s, 76s, 65s, A4o, KJo+, K9o, JTo
Always raise 9.2bb
KK+, AKs
Always all-in 39.84bb
No hand plays this every time
Mixed
TT-QQ, 88, ATs-AQs, AJo, A6o-A9o, KTo, QTo, T9o
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.