PokerSolver
PokerSolver/Fast-fold NL200 6-max 15bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

Fast-fold NL200 6-max ($1/$2) · 15bb · SB limps, BB isolates to 2bb, SB 3-bets to 4bb · Big blind to act

Fast-fold NL200 · 6-max · 15bbChange game
Stacks (bb), if they differ
Pot 6bbYour cards?
2bb
4bb

Tap your two cards.

Big blind's range

1,196 of 1,326 combos get here
Fold 63%Call 19.1%All-in 15bb 17.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB limps, BB isolates to 2bb, SB 3-bets to 4bb in Fast-fold NL200 6-max at 15bb?

SB limps, BB isolates to 2bb, SB 3-bets to 4bb in Fast-fold NL200 6-max, 15bb: the big blind (BB) folds 63%, calls 19.1% and goes all-in 15bb 17.8%. Always call: AA, Q5s, 97s. Always all-in 15bb: TT, AQs+, ATs, A2s, ATo+. Mixed: JJ-KK, 55-99, AJs, A3s-A9s, K3s+, Q6s+, Q3s-Q4s, J7s+, J5s, T7s+, 98s, 96s, 94s, 87s, 74s, 64s, 54s, A8o-A9o, A5o-A6o, A3o, K4o+, Q8o+, T9o.

Always fold
44, K2s, Q2s, J6s, J2s-J4s, T2s-T5s, 95s, 83s-86s, 76s, 72s-73s, 65s, 63s, 52s, 42s, K2o-K3o, Q6o-Q7o, J8o-J9o, J4o-J6o, J2o, T5o-T8o, T2o, 97o+, 94o-95o, 83o+, 74o, 72o, 65o, 62o-63o, 54o, 42o+, 32o
Always call
AA, Q5s, 97s
Always all-in 15bb
TT, AQs+, ATs, A2s, ATo+
Mixed
JJ-KK, 55-99, AJs, A3s-A9s, K3s+, Q6s+, Q3s-Q4s, J7s+, J5s, T7s+, 98s, 96s, 94s, 87s, 74s, 64s, 54s, A8o-A9o, A5o-A6o, A3o, K4o+, Q8o+, T9o
Preset: Fast-fold, NL200 ($1/$2), 6-max, 15bb stacks, 5% rake capped at 3bb. Solver: HoldemResources Calculator (HRC) (HRC CI 9.8). 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.