PokerSolver
PokerSolver/6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN open 3bb

BB vs BTN open 3bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · BTN opens 3bb · Big blind to act

6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.46bbYour cards?
1bb
3bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 51.9%Call 32.5%Raise 6/9bb 15.6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 3bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

BTN opens 3bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 51.9%, calls 32.5% and raises 6/9bb 15.6%. Always call: 77-88, 22-44, A6s-A9s, A2s-A3s, K7s-K9s, K3s, Q8s-Q9s, Q2s-Q5s, J8s-J9s, J2s-J5s, T7s+, T3s-T4s, 97s+, 74s, 63s+, 52s-53s, 43s, A7o-ATo, K8o-KJo, QTo+. Always raise 6/9bb: TT+, ATs+, KJs+, K4s, QJs, T5s, 95s, AQo+. Mixed: 99, 55-66, A4s-A5s, KTs, K5s-K6s, K2s, QTs, Q6s-Q7s, JTs, J6s-J7s, T6s, 96s, 85s+, 75s+, 54s, AJo, A2o-A6o, KQo, K6o-K7o, Q8o-Q9o, J8o+, T8o+, 76o.

Always fold
T2s, 92s-94s, 82s-84s, 72s-73s, 62s, 42s, 32s, K2o-K5o, Q2o-Q7o, J2o-J7o, T2o-T7o, 92o+, 82o+, 72o-75o, 62o+, 52o+, 42o+, 32o
Always call
77-88, 22-44, A6s-A9s, A2s-A3s, K7s-K9s, K3s, Q8s-Q9s, Q2s-Q5s, J8s-J9s, J2s-J5s, T7s+, T3s-T4s, 97s+, 74s, 63s+, 52s-53s, 43s, A7o-ATo, K8o-KJo, QTo+
Always raise 6/9bb
TT+, ATs+, KJs+, K4s, QJs, T5s, 95s, AQo+
Mixed
99, 55-66, A4s-A5s, KTs, K5s-K6s, K2s, QTs, Q6s-Q7s, JTs, J6s-J7s, T6s, 96s, 85s+, 75s+, 54s, AJo, A2o-A6o, KQo, K6o-K7o, Q8o-Q9o, J8o+, T8o+, 76o
Settings: 6-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.92). 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.