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

BB vs SB iso raise 2bb

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 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

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

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 4.64bbYour cards?

1bb

2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 73.5%Call 16.5%Raise 4/6bb 10%

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

BTN limps, SB isolates to 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 73.5%, calls 16.5% and raises 4/6bb 10%. Always call: JJ, 66, Q9s. Always raise 4/6bb: AA, 88, 33-44. Mixed: QQ-KK, 99-TT, 77, 55, 22, A2s+, K2s+, QTs+, Q8s, Q6s, Q4s, Q2s, J7s+, J2s-J3s, T8s+, T5s-T6s, 96s+, 93s, 86s+, 76s, 63s+, 53s+, ATo+, A8o, A5o-A6o, A3o, KTo+, QTo+, J8o+, T9o, 98o, 87o, 76o, 65o, 52o.

Always fold: Q7s, Q5s, Q3s, J4s-J6s, T7s, T2s-T4s, 94s-95s, 92s, 82s-85s, 72s-75s, 62s, 52s, 42s+, 32s, A9o, A7o, A4o, A2o, K2o-K9o, Q2o-Q9o, J2o-J7o, T2o-T8o, 92o-97o, 82o-86o, 72o-75o, 62o-64o, 53o+, 42o+, 32o
Always call: JJ, 66, Q9s
Always raise 4/6bb: AA, 88, 33-44
Mixed: QQ-KK, 99-TT, 77, 55, 22, A2s+, K2s+, QTs+, Q8s, Q6s, Q4s, Q2s, J7s+, J2s-J3s, T8s+, T5s-T6s, 96s+, 93s, 86s+, 76s, 63s+, 53s+, ATo+, A8o, A5o-A6o, A3o, KTo+, QTo+, J8o+, T9o, 98o, 87o, 76o, 65o, 52o

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.