PokerSolver
PokerSolver/6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs SB 4-bet 20.7bb

CO vs SB 4-bet 20.7bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB 4-bets to 20.7bb · Cutoff to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 31.66bbYour cards?
9bb
20.7bb
1bb

Tap your two cards.

Cutoff's range

218 of 1,326 combos get here
Fold 33.5%Call 61%All-in 149.84bb 5.4%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the cutoff (CO) folds 33.5%, calls 61% and goes all-in 149.84bb 5.4%. Always call: QQ, 88, 66, AQs, KTs-KJs, T9s, 98s, 76s. Mixed: KK+, AKs, A2s-A3s, KJo.

Always fold
Q8s, A9o, KQo
Always call
QQ, 88, 66, AQs, KTs-KJs, T9s, 98s, 76s
Always all-in 149.84bb
No hand plays this every time
Mixed
KK+, AKs, A2s-A3s, KJo
Settings: 6-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.4). 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.

Rake sources for the games it fits: 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.