PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB iso raise 3bb

BB vs SB iso raise 3bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN limps, SB isolates to 3bb · 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 5.64bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 81.6%Call 10.3%Raise 6/9bb 8.1%

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

What is the GTO play for the big blind (BB) when BTN limps, SB isolates to 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN limps, SB isolates to 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 81.6%, calls 10.3% and raises 6/9bb 8.1%. Always call: 99, 33, AQs. Always raise 6/9bb: AA, KQs. Mixed: TT-KK, 44-88, 22, AKs, A2s-AJs, K3s-KJs, Q9s+, J8s+, T7s+, 97s+, 86s+, 84s, 75s+, 64s+, 54s, ATo+, KTo+, QTo+, JTo, T9o.

Always fold: K2s, Q2s-Q8s, J2s-J7s, T2s-T6s, 92s-96s, 85s, 82s-83s, 72s-74s, 62s-63s, 52s-53s, 42s+, 32s, A2o-A9o, K2o-K9o, Q2o-Q9o, J2o-J9o, T2o-T8o, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 99, 33, AQs
Always raise 6/9bb: AA, KQs
Mixed: TT-KK, 44-88, 22, AKs, A2s-AJs, K3s-KJs, Q9s+, J8s+, T7s+, 97s+, 86s+, 84s, 75s+, 64s+, 54s, ATo+, KTo+, QTo+, JTo, T9o

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.