PokerSolver
PokerSolver/6-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs HJ 4-bet 20.7bb

CO vs HJ 4-bet 20.7bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · HJ opens 3bb, CO 3-bets to 9bb, HJ 4-bets to 20.7bb · Cutoff to act

6-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 32.16bbYour cards?
9bb
0.5bb
1bb
20.7bb

Tap your two cards.

Cutoff's range

284 of 1,326 combos get here
Fold 48.4%Call 37.2%All-in 99.84bb 14.3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when HJ opens 3bb, CO 3-bets to 9bb, HJ 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

HJ opens 3bb, CO 3-bets to 9bb, HJ 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the cutoff (CO) folds 48.4%, calls 37.2% and goes all-in 99.84bb 14.3%. Always call: 55-TT, AQs, A9s, KTs+, QTs+, JTs, T9s, 76s, 65s, 54s. Always all-in 99.84bb: QQ-KK, AKs, A4s, AKo. Mixed: AA, JJ, A5s, A3s, AQo.

Always fold
A6s-A8s, A2s, K3s-K9s, Q9s, ATo-AJo, A5o, KJo+, QJo
Always call
55-TT, AQs, A9s, KTs+, QTs+, JTs, T9s, 76s, 65s, 54s
Always all-in 99.84bb
QQ-KK, AKs, A4s, AKo
Mixed
AA, JJ, A5s, A3s, AQo
Settings: 6-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.89). 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.

Tree: Two HRC solves of this game in one, callers first: the callers solve (its raises grow by 1bb, or 1x, for each player who called before) has every one of the 1,323 spots here, so the base solve gives none of them.

This spot: from the callers solve (sizes: opens 2.0bb + 1.0bb, 2.5bb + 1.0bb, 3.0bb + 1.0bb; 3-bets 2.0x + 1.0x, 3.0x + 1.0x; 4-bets 2.3x, all-in; 5-bets all-in; HRC CI 24.58).