CO vs SB all-in
4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO opens 3bb, SB 3-bets to 6bb, CO 4-bets to 13.8bb, SB goes all-in · Cutoff to act
4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 95.28bbYour cards?
13.8bb
79.84bb
1bb
Tap your two cards.
Cutoff's range
432 of 1,326 combos get hereFold 88%Call 12%
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, SB 3-bets to 6bb, CO 4-bets to 13.8bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?
CO opens 3bb, SB 3-bets to 6bb, CO 4-bets to 13.8bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the cutoff (CO) folds 88% and calls 12%. Always call: TT+, AKs, AKo. Mixed: 99, AQs, ATs.
- Always fold
- AJs, A8s-A9s, A3s-A6s, KJs+, K5s-K9s, K2s-K3s, QTs+, Q8s, Q4s-Q5s, J9s, J6s-J7s, T6s-T7s, 97s+, 87s, 75s+, 54s, A4o-AQo, K9o+, Q9o+, J9o, T9o
- Always call
- TT+, AKs, AKo
- Mixed
- 99, AQs, ATs
Settings: 4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 4.8bb; 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.