PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/CO vs BTN all-in

CO vs BTN all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 3bb, BTN 3-bets to 9bb, CO 4-bets to 20.7bb, BTN goes all-in · Cutoff to act

4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 222.68bbYour cards?
20.7bb
199.84bb
0.5bb
1bb

Tap your two cards.

Cutoff's range

204 of 1,326 combos get here
Fold 80.9%Call 19.1%
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, BTN 3-bets to 9bb, CO 4-bets to 20.7bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO opens 3bb, BTN 3-bets to 9bb, CO 4-bets to 20.7bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the cutoff (CO) folds 80.9% and calls 19.1%. Always call: QQ+, AKs. Mixed: 99-JJ, 55-77, AQs.

Always fold
88, A7s-AJs, A4s-A5s, K9s+, K7s, Q9s+, JTs, T9s, 98s, 87s, 76s, 65s, 54s, AQo
Always call
QQ+, AKs
Mixed
99-JJ, 55-77, AQs
Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.