PokerSolver
PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs BB 3-bet 5bb

CO vs BB 3-bet 5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · CO opens 2.5bb, BB 3-bets to 5bb · Cutoff to act

6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 8.96bbYour cards?
2.5bb
0.5bb
5bb

Tap your two cards.

Cutoff's range

448 of 1,326 combos get here
Fold 31.9%Call 38.2%All-in 19.84bb 29.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO opens 2.5bb, BB 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

CO opens 2.5bb, BB 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the cutoff (CO) folds 31.9%, calls 38.2% and goes all-in 19.84bb 29.9%. Always call: AA, A8s-A9s, KQs, KTs, Q8s+, J8s+, T9s, A8o-A9o, KQo, QJo. Always all-in 19.84bb: 99-QQ, 55, AJs-AQs, K9s, ATo+, A5o. Mixed: KK, 66-88, AKs, ATs, A7s, KJs, K3s-K7s, Q6s, J7s, T7s, 98s, 87s, A7o, QTo, J9o, T9o.

Always fold
Q5s, A6o, A3o-A4o, K9o-KTo, Q9o, JTo
Always call
AA, A8s-A9s, KQs, KTs, Q8s+, J8s+, T9s, A8o-A9o, KQo, QJo
Always all-in 19.84bb
99-QQ, 55, AJs-AQs, K9s, ATo+, A5o
Mixed
KK, 66-88, AKs, ATs, A7s, KJs, K3s-K7s, Q6s, J7s, T7s, 98s, 87s, A7o, QTo, J9o, T9o
Settings: 6-max · 20bb · 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, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.