PokerSolver
PokerSolver/6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs BTN 3-bet 9bb

CO vs BTN 3-bet 9bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO opens 3bb, BTN 3-bets to 9bb · Cutoff to act

6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 14.46bbYour cards?
3bb
9bb
0.5bb
1bb

Tap your two cards.

Cutoff's range

538 of 1,326 combos get here
Fold 61.5%Call 14.3%Raise 20.7bb 18.7%All-in 79.84bb 5.5%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO opens 3bb, BTN 3-bets to 9bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

CO opens 3bb, BTN 3-bets to 9bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the cutoff (CO) folds 61.5%, calls 14.3%, raises 20.7bb 18.7% and goes all-in 79.84bb 5.5%. Always call: 88, 66, ATs-AJs, KQs, T9s. Always raise 20.7bb: QQ+, AKs, A9s, A6s, K9s, ATo. Mixed: 99-JJ, 77, 33-55, AQs, A7s-A8s, A2s-A5s, KTs-KJs, K5s, Q9s+, Q5s, JTs, 76s, 65s, 54s, AJo+, KQo.

Always fold
22, K6s-K8s, K2s-K4s, Q6s-Q8s, Q4s, J5s-J9s, T6s-T8s, 97s+, 86s+, 75s, A3o-A9o, K8o-KJo, Q9o+, J9o+, T9o
Always call
88, 66, ATs-AJs, KQs, T9s
Always raise 20.7bb
QQ+, AKs, A9s, A6s, K9s, ATo
Always all-in 79.84bb
No hand plays this every time
Mixed
99-JJ, 77, 33-55, AQs, A7s-A8s, A2s-A5s, KTs-KJs, K5s, Q9s+, Q5s, JTs, 76s, 65s, 54s, AJo+, KQo
Settings: 6-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.92). 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.