PokerSolver
PokerSolver/Fast-fold NL200 6-max 20bb/BTN vs CO 3-bet 4bb

BTN vs CO 3-bet 4bb

Fast-fold NL200 6-max ($1/$2) · 20bb · HJ opens 2bb, CO 3-bets to 4bb · Button to act

Fast-fold NL200 · 6-max · 20bbChange game
Stacks (bb), if they differ
Pot 7.5bbYour cards?
0.5bb
1bb
2bb
4bb

Tap your two cards.

Button's range

1,326 of 1,326 combos get here
Fold 95.5%Call 1.5%All-in 20bb 3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when HJ opens 2bb, CO 3-bets to 4bb in Fast-fold NL200 6-max at 20bb?

HJ opens 2bb, CO 3-bets to 4bb in Fast-fold NL200 6-max, 20bb: the button (BTN) folds 95.5%, calls 1.5% and goes all-in 20bb 3%. Always call: AA, AQs. Always all-in 20bb: QQ-KK, AKs, AKo. Mixed: 99-JJ, A9s-AJs, A4s-A5s, A2s, KQs, AQo.

Always fold
22-88, A6s-A8s, A3s, K2s-KJs, Q2s+, J2s+, T2s+, 92s+, 82s+, 72s+, 62s+, 52s+, 42s+, 32s, A2o-AJo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
AA, AQs
Always all-in 20bb
QQ-KK, AKs, AKo
Mixed
99-JJ, A9s-AJs, A4s-A5s, A2s, KQs, AQo
Preset: Fast-fold, NL200 ($1/$2), 6-max, 20bb stacks, 5% rake capped at 3bb. Solver: HoldemResources Calculator (HRC) (HRC CI 24.03). 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.