CO vs BB all-in
5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO opens 3bb, BB 3-bets to 9bb, CO 4-bets to 20.7bb, BB goes all-in · Cutoff to act
5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 271.84bbYour cards?
20.7bb
0.5bb
249.84bb
Tap your two cards.
Cutoff's range
386 of 1,326 combos get hereFold 94.8%Call 5.2%
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, BB 3-bets to 9bb, CO 4-bets to 20.7bb, BB goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?
CO opens 3bb, BB 3-bets to 9bb, CO 4-bets to 20.7bb, BB goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the cutoff (CO) folds 94.8% and calls 5.2%. Always call: KK+. Mixed: QQ, 66-88, AKs.
- Always fold
- 99-JJ, 33-55, AQs, ATs, A7s, A2s-A5s, K3s-K9s, QJs, Q8s-Q9s, J8s+, T7s+, 97s, 87s, 75s+, 65s, 54s, ATo+, A5o, KTo+, QTo+, JTo
- Always call
- KK+
- Mixed
- QQ, 66-88, AKs
Settings: 5-max · 250bb · 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, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.