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

BB vs CO 3-bet 4bb

Fast-fold NL200 6-max ($1/$2) · 20bb · CO limps, BB isolates to 2bb, CO 3-bets to 4bb · Big blind to act

Fast-fold NL200 · 6-max · 20bbChange game
Stacks (bb), if they differ
Pot 6.5bbYour cards?
2bb
4bb
0.5bb

Tap your two cards.

Big blind's range

436 of 1,326 combos get here
Fold 56%Call 12.4%All-in 20bb 31.6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO limps, BB isolates to 2bb, CO 3-bets to 4bb in Fast-fold NL200 6-max at 20bb?

CO limps, BB isolates to 2bb, CO 3-bets to 4bb in Fast-fold NL200 6-max, 20bb: the big blind (BB) folds 56%, calls 12.4% and goes all-in 20bb 31.6%. Always all-in 20bb: AQs, AKo. Mixed: 55+, AKs, ATs, A7s-A8s, A4s-A5s, A2s, KTs+, K3s, QJs, Q9s, J8s+, T8s+, 97s, 73s, 43s, A9o-AJo, KTo, JTo.

Always fold
K5s-K6s, Q5s, Q2s-Q3s, J2s, T5s, 98s, 75s, 65s, A7o, A4o, KJo, QJo
Always call
No hand plays this every time
Always all-in 20bb
AQs, AKo
Mixed
55+, AKs, ATs, A7s-A8s, A4s-A5s, A2s, KTs+, K3s, QJs, Q9s, J8s+, T8s+, 97s, 73s, 43s, A9o-AJo, KTo, JTo
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.