PokerSolver
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 2.5bb, 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
Stacks (bb), if they differ
Pot 6.96bbYour cards?
1bb
2.5bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 68.1%Call 18.3%Raise 5/7.5bb 13.6%
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 2.5bb, SB calls in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

CO opens 2.5bb, SB calls in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the big blind (BB) folds 68.1%, calls 18.3% and raises 5/7.5bb 13.6%. Always call: 22-55, K6s-K8s, Q8s, T6s, 98s, 96s, 87s, 76s, 65s, 54s, 43s, KTo, QJo. Always raise 5/7.5bb: 66+, ATs+, QTs, ATo+, KQo. Mixed: A2s-A9s, K9s+, K3s-K5s, QJs, Q9s, Q3s-Q7s, J7s+, T7s+, T4s, T2s, 97s, 95s, 85s-86s, 72s-75s, 63s-64s, 53s, 42s, 32s, A8o-A9o, A4o, KJo, K9o, QTo, JTo, T8o, 65o.

Always fold
K2s, Q2s, J2s-J6s, T5s, T3s, 92s-94s, 82s-84s, 62s, 52s, A5o-A7o, A2o-A3o, K2o-K8o, Q2o-Q9o, J2o-J9o, T9o, T2o-T7o, 92o+, 82o+, 72o+, 62o-64o, 52o+, 42o+, 32o
Always call
22-55, K6s-K8s, Q8s, T6s, 98s, 96s, 87s, 76s, 65s, 54s, 43s, KTo, QJo
Always raise 5/7.5bb
66+, ATs+, QTs, ATo+, KQo
Mixed
A2s-A9s, K9s+, K3s-K5s, QJs, Q9s, Q3s-Q7s, J7s+, T7s+, T4s, T2s, 97s, 95s, 85s-86s, 72s-75s, 63s-64s, 53s, 42s, 32s, A8o-A9o, A4o, KJo, K9o, QTo, JTo, T8o, 65o
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.