PokerSolver
PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs BTN 3-bet 4bb

CO vs BTN 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 2bb, BTN 3-bets to 4bb · Cutoff to act

5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 8.3bbYour cards?
2bb
4bb
0.5bb
1bb

Tap your two cards.

Cutoff's range

442 of 1,326 combos get here
Fold 0.1%Call 85.5%Raise 9.2bb 8.8%All-in 199.84bb 5.6%
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, BTN 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

CO opens 2bb, BTN 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the cutoff (CO) folds 0.1%, calls 85.5%, raises 9.2bb 8.8% and goes all-in 199.84bb 5.6%. Always call: 22-TT, A8s, A6s, A3s-A4s, K5s-K9s, Q7s+, J7s+, T7s+, 97s+, 86s+, 75s+, 65s, 54s, A8o-AJo, KTo+, QTo+, JTo, T9o. Always raise 9.2bb: AQs, KQs. Always all-in 199.84bb: AKo. Mixed: JJ+, AKs, A9s-ATs, A7s, A5s, A2s, KTs-KJs, AQo.

Always fold
No hand plays this every time
Always call
22-TT, A8s, A6s, A3s-A4s, K5s-K9s, Q7s+, J7s+, T7s+, 97s+, 86s+, 75s+, 65s, 54s, A8o-AJo, KTo+, QTo+, JTo, T9o
Always raise 9.2bb
AQs, KQs
Always all-in 199.84bb
AKo
Mixed
JJ+, AKs, A9s-ATs, A7s, A5s, A2s, KTs-KJs, AQo
Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.