PokerSolver
PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO open 2bb

BB vs CO open 2bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 2bb · Big blind to act

5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 4.3bbYour cards?
1bb
2bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 29.7%Call 61.1%Raise 4/6bb 9.3%
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 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

CO opens 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the big blind (BB) folds 29.7%, calls 61.1% and raises 4/6bb 9.3%. Always call: 22-33, A6s, A2s-A3s, K7s, K2s-K5s, Q7s-Q9s, Q2s-Q5s, J2s-J7s, T2s-T7s, 98s, 92s-96s, 82s-86s, 72s-75s, 62s-63s, 52s+, 42s+, 32s, A2o-AJo, K4o+, Q7o+, Q5o, J8o+, T7o+, 97o+, 86o+, 75o+, 64o+, 54o. Always raise 4/6bb: QQ+, AJs+, A8s, KTs, JTs, T9s. Mixed: 44-JJ, A9s-ATs, A7s, A4s-A5s, KJs+, K8s-K9s, K6s, QTs+, Q6s, J8s-J9s, T8s, 97s, 87s, 76s, 64s+, AQo+, K3o, Q6o, Q4o, J7o, 96o, 85o.

Always fold
K2o, Q2o-Q3o, J2o-J6o, T2o-T6o, 92o-95o, 82o-84o, 72o-74o, 62o-63o, 52o-53o, 42o+, 32o
Always call
22-33, A6s, A2s-A3s, K7s, K2s-K5s, Q7s-Q9s, Q2s-Q5s, J2s-J7s, T2s-T7s, 98s, 92s-96s, 82s-86s, 72s-75s, 62s-63s, 52s+, 42s+, 32s, A2o-AJo, K4o+, Q7o+, Q5o, J8o+, T7o+, 97o+, 86o+, 75o+, 64o+, 54o
Always raise 4/6bb
QQ+, AJs+, A8s, KTs, JTs, T9s
Mixed
44-JJ, A9s-ATs, A7s, A4s-A5s, KJs+, K8s-K9s, K6s, QTs+, Q6s, J8s-J9s, T8s, 97s, 87s, 76s, 64s+, AQo+, K3o, Q6o, Q4o, J7o, 96o, 85o
Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.