BTN 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 · CO limps, BTN isolates to 2bb, CO 3-bets to 4bb · Button to act
Fits exactlyno game we have checked
CloseCP1 games
- CPCoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 8.46bbYour cards?
2bb
0.5bb
1bb
4bb
Tap your two cards.
Button's range
312 of 1,326 combos get hereFold 21.3%Call 36.8%All-in 19.84bb 42%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the button (BTN) when CO limps, BTN isolates to 2bb, CO 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?
CO limps, BTN isolates to 2bb, CO 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the button (BTN) folds 21.3%, calls 36.8% and goes all-in 19.84bb 42%. Always all-in 19.84bb: KK, JJ, 77-88, AJs, AJo+. Mixed: 99-TT, 44-66, AQs, A2s-ATs, K9s+, Q8s+, J8s+, T8s+, 97s+, 87s, A8o-ATo, KTo+, QJo.
- Always fold
- K8s
- Always call
- No hand plays this every time
- Always all-in 19.84bb
- KK, JJ, 77-88, AJs, AJo+
- Mixed
- 99-TT, 44-66, AQs, A2s-ATs, K9s+, Q8s+, J8s+, T8s+, 97s+, 87s, A8o-ATo, KTo+, QJo
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.
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.