PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB call

BB vs SB call

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · CO opens 3bb, SB calls · 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

6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 7.96bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 77.8%Call 8.9%Raise 6bb 1.8%All-in 19.84bb 11.5%

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

What is the GTO play for the big blind (BB) when CO opens 3bb, SB calls in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

CO opens 3bb, SB calls in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the big blind (BB) folds 77.8%, calls 8.9%, raises 6bb 1.8% and goes all-in 19.84bb 11.5%. Always call: K5s. Always all-in 19.84bb: 99-JJ, 77, AKs, ATs, KQs, ATo-AQo. Mixed: QQ+, 88, 22-66, AJs-AQs, A2s-A9s, K7s-KJs, K2s-K4s, Q8s+, Q5s-Q6s, Q2s, J6s+, J2s, T4s+, 96s+, 85s+, 74s+, 64s, 53s+, 42s, AKo, A9o, KTo+, QTo+, Q8o.

Always fold: K6s, Q7s, Q3s-Q4s, J3s-J5s, T2s-T3s, 92s-95s, 82s-84s, 72s-73s, 65s, 62s-63s, 52s, 43s, 32s, A2o-A8o, K2o-K9o, Q9o, Q2o-Q7o, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: K5s
Always raise 6bb: No hand plays this every time
Always all-in 19.84bb: 99-JJ, 77, AKs, ATs, KQs, ATo-AQo
Mixed: QQ+, 88, 22-66, AJs-AQs, A2s-A9s, K7s-KJs, K2s-K4s, Q8s+, Q5s-Q6s, Q2s, J6s+, J2s, T4s+, 96s+, 85s+, 74s+, 64s, 53s+, 42s, AKo, A9o, KTo+, QTo+, Q8o

Settings: 6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.