PokerSolver/4-max · 200bb · 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) · 200bb · CO 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 · 200bb · 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 86.7%Call 8.3%Raise 6/9bb 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 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO limps, SB isolates to 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the big blind (BB) folds 86.7%, calls 8.3% and raises 6/9bb 5%. Always call: 99. Always raise 6/9bb: AA, AKs, KQs. Mixed: TT-KK, 22-88, A2s-AQs, KTs-KJs, K6s-K7s, Q9s+, J9s+, J5s, J3s, T9s, T7s, 97s+, 87s, 53s+, 42s, AQo+, A5o, KQo.

Always fold: K8s-K9s, K2s-K5s, Q2s-Q8s, J6s-J8s, J4s, J2s, T8s, T2s-T6s, 92s-96s, 82s-86s, 72s+, 62s+, 52s, 43s, 32s, A6o-AJo, A2o-A4o, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 99
Always raise 6/9bb: AA, AKs, KQs
Mixed: TT-KK, 22-88, A2s-AQs, KTs-KJs, K6s-K7s, Q9s+, J9s+, J5s, J3s, T9s, T7s, 97s+, 87s, 53s+, 42s, AQo+, A5o, KQo

Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.