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

BB vs BTN open 2bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · BTN 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 17.4%Call 68.1%Raise 4/6bb 14.5%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

BTN opens 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the big blind (BB) folds 17.4%, calls 68.1% and raises 4/6bb 14.5%. Always call: 22, K9s, K2s-K3s, Q8s, Q2s-Q6s, J6s-J7s, J2s-J4s, T2s-T5s, 96s, 92s-94s, 82s-84s, 73s-74s, 62s-63s, 52s, 42s+, A2o-A9o, K2o-KJo, Q2o-Q9o, J4o-J9o, T6o+, 96o+, 85o+, 74o+, 64o+, 54o. Always raise 4/6bb: JJ+, ATs+, KQs, QJs, J9s, T8s, AKo. Mixed: 33-TT, A2s-A9s, KTs-KJs, K4s-K8s, Q9s-QTs, Q7s, JTs, J8s, J5s, T9s, T6s-T7s, 97s+, 95s, 85s+, 75s+, 72s, 64s+, 53s+, 32s, ATo-AQo, KQo, QTo+, JTo, J2o, T4o-T5o, 95o, 53o, 43o.

Always fold
J3o, T2o-T3o, 92o-94o, 82o-84o, 72o-73o, 62o-63o, 52o, 42o, 32o
Always call
22, K9s, K2s-K3s, Q8s, Q2s-Q6s, J6s-J7s, J2s-J4s, T2s-T5s, 96s, 92s-94s, 82s-84s, 73s-74s, 62s-63s, 52s, 42s+, A2o-A9o, K2o-KJo, Q2o-Q9o, J4o-J9o, T6o+, 96o+, 85o+, 74o+, 64o+, 54o
Always raise 4/6bb
JJ+, ATs+, KQs, QJs, J9s, T8s, AKo
Mixed
33-TT, A2s-A9s, KTs-KJs, K4s-K8s, Q9s-QTs, Q7s, JTs, J8s, J5s, T9s, T6s-T7s, 97s+, 95s, 85s+, 75s+, 72s, 64s+, 53s+, 32s, ATo-AQo, KQo, QTo+, JTo, J2o, T4o-T5o, 95o, 53o, 43o
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.