PokerSolver
PokerSolver/6-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs CO open 3bb

BTN vs CO open 3bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · CO opens 3bb · Button to act

6-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.46bbYour cards?
0.5bb
1bb
3bb

Tap your two cards.

Button's range

1,326 of 1,326 combos get here
Fold 80.8%Call 7.6%Raise 6/9bb 11.6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO opens 3bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 60bb?

CO opens 3bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the button (BTN) folds 80.8%, calls 7.6% and raises 6/9bb 11.6%. Always call: 99, A9s-AJs, K9s-KTs, QTs+, J9s. Always raise 6/9bb: TT+, AQs+, A2s-A3s, K8s, AKo, AJo. Mixed: 33-88, A4s-A8s, KJs+, K5s-K7s, Q8s-Q9s, JTs, T8s+, 98s, 87s, 65s, AQo, ATo, KTo+, QTo+.

Always fold
22, K2s-K4s, Q2s-Q7s, J2s-J8s, T2s-T7s, 92s-97s, 82s-86s, 72s+, 62s-64s, 52s+, 42s+, 32s, A2o-A9o, K2o-K9o, Q2o-Q9o, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
99, A9s-AJs, K9s-KTs, QTs+, J9s
Always raise 6/9bb
TT+, AQs+, A2s-A3s, K8s, AKo, AJo
Mixed
33-88, A4s-A8s, KJs+, K5s-K7s, Q8s-Q9s, JTs, T8s+, 98s, 87s, 65s, AQo, ATo, KTo+, QTo+
Settings: 6-max · 60bb · 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, 60bb stacks, 5% rake capped at 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.