PokerSolver
PokerSolver/Fast-fold NL200 6-max 40bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

Fast-fold NL200 6-max ($1/$2) · 40bb · CO opens 2bb, SB 3-bets to 4bb · Big blind to act

Fast-fold NL200 · 6-max · 40bbChange game
Stacks (bb), if they differ
Pot 7bbYour cards?
1bb
2bb
4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 93.4%Call 1.2%Raise 9.2bb 4.4%All-in 40bb 1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2bb, SB 3-bets to 4bb in Fast-fold NL200 6-max at 40bb?

CO opens 2bb, SB 3-bets to 4bb in Fast-fold NL200 6-max, 40bb: the big blind (BB) folds 93.4%, calls 1.2%, raises 9.2bb 4.4% and goes all-in 40bb 1%. Always raise 9.2bb: AA, AQo. Mixed: 88-KK, 22, A8s+, A2s, KTs+, 86s, 64s, AKo.

Always fold
33-77, A3s-A7s, K2s-K9s, Q2s+, J2s+, T2s+, 92s+, 87s, 82s-85s, 72s+, 65s, 62s-63s, 52s+, 42s+, 32s, A2o-AJo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always raise 9.2bb
AA, AQo
Always all-in 40bb
No hand plays this every time
Mixed
88-KK, 22, A8s+, A2s, KTs+, 86s, 64s, AKo
Preset: Fast-fold, NL200 ($1/$2), 6-max, 40bb stacks, 5% rake capped at 3bb. Solver: HoldemResources Calculator (HRC) (HRC CI 24.4). 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.