PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN open 2bb

BB vs BTN open 2bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · BTN opens 2bb · Big blind to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 4.46bbYour cards?
1bb
2bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 24.6%Call 54.4%Raise 4/6bb 21%
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 2bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

BTN opens 2bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 24.6%, calls 54.4% and raises 4/6bb 21%. Always call: 22-44, A7s, K7s-K8s, K2s-K5s, Q9s, Q2s-Q7s, J6s, J2s-J4s, T5s-T6s, T2s-T3s, 92s-95s, 82s-85s, 72s-75s, 62s-63s, 52s+, 42s+, 32s, A8o, A2o-A4o, K6o-K9o, K3o-K4o, Q9o, Q4o-Q7o, Q2o, J7o-J8o, 98o, 86o+, 75o+, 64o. Always raise 4/6bb: 77+, 55, A9s+, KQs, JTs, ATo+, KQo, QJo. Mixed: 66, A8s, A2s-A6s, K9s-KJs, K6s, QTs+, Q8s, J7s-J9s, J5s, T7s+, T4s, 96s+, 86s+, 76s, 64s+, A9o, A5o-A7o, KTo-KJo, K5o, K2o, QTo, Q8o, Q3o, J9o+, J6o, J3o, T6o+, 96o-97o, 85o, 65o, 53o+.

Always fold
J4o-J5o, J2o, T2o-T5o, 92o-95o, 82o-84o, 72o-74o, 62o-63o, 52o, 42o+, 32o
Always call
22-44, A7s, K7s-K8s, K2s-K5s, Q9s, Q2s-Q7s, J6s, J2s-J4s, T5s-T6s, T2s-T3s, 92s-95s, 82s-85s, 72s-75s, 62s-63s, 52s+, 42s+, 32s, A8o, A2o-A4o, K6o-K9o, K3o-K4o, Q9o, Q4o-Q7o, Q2o, J7o-J8o, 98o, 86o+, 75o+, 64o
Always raise 4/6bb
77+, 55, A9s+, KQs, JTs, ATo+, KQo, QJo
Mixed
66, A8s, A2s-A6s, K9s-KJs, K6s, QTs+, Q8s, J7s-J9s, J5s, T7s+, T4s, 96s+, 86s+, 76s, 64s+, A9o, A5o-A7o, KTo-KJo, K5o, K2o, QTo, Q8o, Q3o, J9o+, J6o, J3o, T6o+, 96o-97o, 85o, 65o, 53o+
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.