PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB call

BB vs SB call

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO limps, BTN isolates to 2bb, SB calls · Big blind to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 6.64bbYour cards?
1bb
1bb
2bb
2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 86.9%Call 6.2%Raise 4/6bb 6.9%
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, SB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

CO limps, BTN isolates to 2bb, SB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the big blind (BB) folds 86.9%, calls 6.2% and raises 4/6bb 6.9%. Always raise 4/6bb: QQ+. Mixed: 22-JJ, A5s+, A3s, KQs, K8s-KTs, K4s-K5s, K2s, QJs, Q9s, Q5s-Q6s, JTs, J8s, J5s-J6s, T7s+, T2s, 92s, 87s, 75s+, 65s, 43s, AJo+, KQo.

Always fold
A4s, A2s, KJs, K6s-K7s, K3s, QTs, Q7s-Q8s, Q2s-Q4s, J9s, J7s, J2s-J4s, T3s-T6s, 93s+, 82s-86s, 72s-74s, 62s-64s, 52s+, 42s, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always raise 4/6bb
QQ+
Mixed
22-JJ, A5s+, A3s, KQs, K8s-KTs, K4s-K5s, K2s, QJs, Q9s, Q5s-Q6s, JTs, J8s, J5s-J6s, T7s+, T2s, 92s, 87s, 75s+, 65s, 43s, AJo+, KQo
Settings: 4-max · 150bb · 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, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.