PokerSolver
PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/UTG vs CO 3-bet 4bb

UTG vs CO 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · UTG opens 2bb, CO 3-bets to 4bb · Under the gun to act

6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 8.46bbYour cards?
2bb
4bb
0.5bb
1bb

Tap your two cards.

Under the gun's range

308 of 1,326 combos get here
Fold 35.2%Call 35.5%All-in 19.84bb 29.3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the under the gun (UTG) when UTG opens 2bb, CO 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

UTG opens 2bb, CO 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the under the gun (UTG) folds 35.2%, calls 35.5% and goes all-in 19.84bb 29.3%. Always call: 55-77, ATs, KTs+, QTs+, J9s+, T9s, 98s, KQo. Always all-in 19.84bb: 88-KK, AQs+, AQo+. Mixed: AA, AJs, A2s-A8s, K7s-K9s, Q8s-Q9s, ATo-AJo.

Always fold
A8o-A9o, KTo-KJo, QTo+, JTo
Always call
55-77, ATs, KTs+, QTs+, J9s+, T9s, 98s, KQo
Always all-in 19.84bb
88-KK, AQs+, AQo+
Mixed
AA, AJs, A2s-A8s, K7s-K9s, Q8s-Q9s, ATo-AJo
Settings: 6-max · 20bb · 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, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.