PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN iso raise 2bb

BB vs BTN iso raise 2bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO limps, BTN 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

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 5.14bbYour cards?

1bb

2bb

0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 75.9%Call 16.9%Raise 4/6bb 7.2%

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, BTN isolates to 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

CO limps, BTN isolates to 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 75.9%, calls 16.9% and raises 4/6bb 7.2%. Always call: KK, K7s, Q4s, 43s, AKo, AJo, KQo. Always raise 4/6bb: AJs, KTs-KJs, QJs. Mixed: AA, 22-QQ, AQs+, A2s-ATs, KQs, K8s-K9s, K3s-K6s, Q8s-QTs, Q6s, J9s+, T9s, 97s, 86s+, 75s+, 65s, 63s, 54s, AQo, A9o-ATo, KTo-KJo, QTo+, T9o, 86o, 75o+, 65o, 54o.

Always fold: K2s, Q7s, Q5s, Q2s-Q3s, J2s-J8s, T2s-T8s, 98s, 92s-96s, 82s-85s, 72s-74s, 64s, 62s, 52s-53s, 42s, 32s, A2o-A8o, K2o-K9o, Q2o-Q9o, J2o+, T2o-T8o, 92o+, 87o, 82o-85o, 72o-74o, 62o-64o, 52o-53o, 42o+, 32o
Always call: KK, K7s, Q4s, 43s, AKo, AJo, KQo
Always raise 4/6bb: AJs, KTs-KJs, QJs
Mixed: AA, 22-QQ, AQs+, A2s-ATs, KQs, K8s-K9s, K3s-K6s, Q8s-QTs, Q6s, J9s+, T9s, 97s, 86s+, 75s+, 65s, 63s, 54s, AQo, A9o-ATo, KTo-KJo, QTo+, T9o, 86o, 75o+, 65o, 54o

Settings: 4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.