PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB open 3bb

BB vs SB open 3bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · SB opens 3bb · Big blind to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 4.96bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 29.6%Call 55.7%Raise 6/9bb 14.7%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB opens 3bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

SB opens 3bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 29.6%, calls 55.7% and raises 6/9bb 14.7%. Always call: 22-77, A2s-A9s, K2s+, Q2s+, J2s+, T2s+, 92s+, 82s+, 73s+, 63s+, 52s+, 42s+, 32s, A7o-A9o, A4o-A5o, K5o+, Q7o+, J8o+, T8o+, 97o+, 87o, 76o, 65o, 54o. Always raise 6/9bb: 99+, ATs+, AJo+, A2o, Q5o, T6o. Mixed: 88, 62s, ATo, A6o, A3o, K2o-K4o, Q6o, Q4o, J7o, J2o-J5o, T7o.

Always fold: 72s, Q2o-Q3o, J6o, T2o-T5o, 92o-96o, 82o-86o, 72o-75o, 62o-64o, 52o-53o, 42o+, 32o
Always call: 22-77, A2s-A9s, K2s+, Q2s+, J2s+, T2s+, 92s+, 82s+, 73s+, 63s+, 52s+, 42s+, 32s, A7o-A9o, A4o-A5o, K5o+, Q7o+, J8o+, T8o+, 97o+, 87o, 76o, 65o, 54o
Always raise 6/9bb: 99+, ATs+, AJo+, A2o, Q5o, T6o
Mixed: 88, 62s, ATo, A6o, A3o, K2o-K4o, Q6o, Q4o, J7o, J2o-J5o, T7o

Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.