CO vs BTN all-in
6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · CO opens 2.5bb, BTN 3-bets to 5bb, CO 4-bets to 11.5bb, BTN goes all-in · Cutoff to act
6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 53.8bbYour cards?
11.5bb
39.84bb
0.5bb
1bb
Tap your two cards.
Cutoff's range
370 of 1,326 combos get hereFold 72%Call 28%
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, BTN 3-bets to 5bb, CO 4-bets to 11.5bb, BTN goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?
CO opens 2.5bb, BTN 3-bets to 5bb, CO 4-bets to 11.5bb, BTN goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the cutoff (CO) folds 72% and calls 28%. Always call: 66+, ATs+, AQo+. Mixed: A8s-A9s, AJo.
- Always fold
- A6s-A7s, A4s, A2s, K2s-K9s, Q4s-Q8s, J7s-J8s, T9s, A8o-ATo, A4o-A6o, KTo-KJo, QTo+
- Always call
- 66+, ATs+, AQo+
- Mixed
- A8s-A9s, AJo
Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.