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

BB vs BTN call

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · CO opens 2.5bb, BTN calls · Big blind to act

Fits exactlyno game we have checked

Close1 games

CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here

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

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 7.46bbYour cards?

1bb

2.5bb

0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 70.7%Call 16.4%Raise 5/7.5bb 12.9%

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

What is the GTO play for the big blind (BB) when CO opens 2.5bb, BTN calls in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

CO opens 2.5bb, BTN calls in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 70.7%, calls 16.4% and raises 5/7.5bb 12.9%. Always call: 22-66, A8s, A5s-A6s, A2s-A3s, K4s-K8s, Q8s, J8s, T7s-T8s, 96s-97s, 85s-86s, 75s, 64s+, 53s+, 43s, KQo, QTo. Always raise 5/7.5bb: 88+, AJs+, KTs+, QTs+, AJo+. Mixed: 77, A9s-ATs, A7s, A4s, K9s, K3s, Q9s, Q5s-Q7s, J9s+, J7s, T9s, 98s, 87s, 76s, 74s, 52s, A9o-ATo, KTo-KJo, QJo.

Always fold: K2s, Q2s-Q4s, J2s-J6s, T2s-T6s, 92s-95s, 82s-84s, 72s-73s, 62s-63s, 42s, 32s, A2o-A8o, K2o-K9o, Q2o-Q9o, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 22-66, A8s, A5s-A6s, A2s-A3s, K4s-K8s, Q8s, J8s, T7s-T8s, 96s-97s, 85s-86s, 75s, 64s+, 53s+, 43s, KQo, QTo
Always raise 5/7.5bb: 88+, AJs+, KTs+, QTs+, AJo+
Mixed: 77, A9s-ATs, A7s, A4s, K9s, K3s, Q9s, Q5s-Q7s, J9s+, J7s, T9s, 98s, 87s, 76s, 74s, 52s, A9o-ATo, KTo-KJo, QJo

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.

Rake sources for the games it fits: 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.