PokerSolver
PokerSolver/6-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs BB iso raise 4bb

CO vs BB iso raise 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, BB isolates to 4bb · 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 · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 6.46bbYour cards?
1bb
0.5bb
4bb

Tap your two cards.

Cutoff's range

410 of 1,326 combos get here
Fold 38.7%Call 51.5%Raise 8/12bb 9.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO limps, BB isolates to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO limps, BB isolates to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the cutoff (CO) folds 38.7%, calls 51.5% and raises 8/12bb 9.8%. Always call: 55-TT, A3s-A8s, K9s-KTs, Q9s-QTs, J9s+, T8s+, AJo-AQo, KQo, QJo. Always raise 8/12bb: KK, AKs. Mixed: JJ, 33-44, AQs, K6s-K8s, Q8s, 97s+, 87s, 76s, 65s, ATo, KJo, JTo.

Always fold
22, Q7s, J8s, T7s, 86s, 54s, A9o, KTo, QTo, T9o
Always call
55-TT, A3s-A8s, K9s-KTs, Q9s-QTs, J9s+, T8s+, AJo-AQo, KQo, QJo
Always raise 8/12bb
KK, AKs
Mixed
JJ, 33-44, AQs, K6s-K8s, Q8s, 97s+, 87s, 76s, 65s, ATo, KJo, JTo
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.

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).

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.