PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/CO vs BB all-in

CO vs BB all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO opens 2.5bb, BB 3-bets to 5bb, CO 4-bets to 11.5bb, BB goes all-in · Cutoff to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 262.48bbYour cards?
11.5bb
0.5bb
249.84bb

Tap your two cards.

Cutoff's range

352 of 1,326 combos get here
Fold 93.1%Call 6.9%
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, CO 4-bets to 11.5bb, BB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

CO opens 2.5bb, BB 3-bets to 5bb, CO 4-bets to 11.5bb, BB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the cutoff (CO) folds 93.1% and calls 6.9%. Always call: AA. Mixed: JJ-KK, 99, 77, 55, AKs, AKo.

Always fold
TT, 88, 66, 22-33, A9s-AQs, A2s-A7s, KQs, K9s-KTs, K7s, K5s, K2s-K3s, QJs, Q9s, J8s+, T9s, T7s, 97s+, 86s+, 76s, 65s, AQo, A9o-ATo, A5o, KTo-KJo
Always call
AA
Mixed
JJ-KK, 99, 77, 55, AKs, AKo
Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.