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

BB vs SB call

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · BTN opens 2.5bb, SB calls · 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 6.96bbYour cards?

1bb

2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 60.8%Call 22.2%Raise 5/7.5bb 17%

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 2.5bb, SB calls in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

BTN opens 2.5bb, SB calls in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 60.8%, calls 22.2% and raises 5/7.5bb 17%. Always call: 22-55, A6s-A7s, A2s, K6s-K9s, K2s-K3s, Q7s-Q9s, Q4s, J7s, 97s+, 86s, 75s, 65s, 63s, 54s, A6o, KTo. Always raise 5/7.5bb: 66+, A9s+, KJs+, QTs+, J9s, A9o+, KQo. Mixed: A8s, A3s-A5s, KTs, K4s-K5s, Q5s-Q6s, Q2s-Q3s, JTs, J8s, J2s-J6s, T7s+, T4s, 96s, 87s, 85s, 76s, 74s, 64s, 53s, 42s+, A7o-A8o, A3o-A5o, KJo, K9o, Q9o+, J9o+, T9o, 97o, 87o, 65o.

Always fold: T5s-T6s, T2s-T3s, 92s-95s, 82s-84s, 72s-73s, 62s, 52s, 32s, A2o, K2o-K8o, Q2o-Q8o, J2o-J8o, T2o-T8o, 98o, 92o-96o, 82o-86o, 72o+, 62o-64o, 52o+, 42o+, 32o
Always call: 22-55, A6s-A7s, A2s, K6s-K9s, K2s-K3s, Q7s-Q9s, Q4s, J7s, 97s+, 86s, 75s, 65s, 63s, 54s, A6o, KTo
Always raise 5/7.5bb: 66+, A9s+, KJs+, QTs+, J9s, A9o+, KQo
Mixed: A8s, A3s-A5s, KTs, K4s-K5s, Q5s-Q6s, Q2s-Q3s, JTs, J8s, J2s-J6s, T7s+, T4s, 96s, 87s, 85s, 76s, 74s, 64s, 53s, 42s+, A7o-A8o, A3o-A5o, KJo, K9o, Q9o+, J9o+, T9o, 97o, 87o, 65o

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.