PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB iso raise 2bb

BB vs SB iso raise 2bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · CO limps, SB isolates to 2bb · 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

Tournament

6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 4.96bbYour cards?

1bb

2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 61.9%Call 22.6%Raise 4/6bb 15.5%

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

What is the GTO play for the big blind (BB) when CO limps, SB isolates to 2bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

CO limps, SB isolates to 2bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the big blind (BB) folds 61.9%, calls 22.6% and raises 4/6bb 15.5%. Always call: 22-33, A2s-A5s, KJs+, K8s-K9s, Q3s-Q4s, T6s, 86s, A8o, QJo. Always raise 4/6bb: 66+, ATs+, QJs, T9s, ATo+. Mixed: 44-55, A6s-A9s, KTs, K3s-K7s, Q5s-QTs, Q2s, J5s+, J2s, T7s-T8s, 96s+, 87s, 85s, 82s, 74s+, 63s+, 52s+, 43s, A9o, A4o-A7o, K9o+, QTo, JTo, T8o+, 86o, 75o+, 65o, 54o.

Always fold: K2s, J3s-J4s, T2s-T5s, 92s-95s, 83s-84s, 72s-73s, 62s, 42s, 32s, A2o-A3o, K2o-K8o, Q2o-Q9o, J2o-J9o, T2o-T7o, 92o+, 87o, 82o-85o, 72o-74o, 62o-64o, 52o-53o, 42o+, 32o
Always call: 22-33, A2s-A5s, KJs+, K8s-K9s, Q3s-Q4s, T6s, 86s, A8o, QJo
Always raise 4/6bb: 66+, ATs+, QJs, T9s, ATo+
Mixed: 44-55, A6s-A9s, KTs, K3s-K7s, Q5s-QTs, Q2s, J5s+, J2s, T7s-T8s, 96s+, 87s, 85s, 82s, 74s+, 63s+, 52s+, 43s, A9o, A4o-A7o, K9o+, QTo, JTo, T8o+, 86o, 75o+, 65o, 54o

Settings: 6-max · 20bb · 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, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.