PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN open 2bb

BB vs BTN open 2bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN opens 2bb · Big blind to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 4.14bbYour cards?
1bb
2bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 16.4%Call 70.4%Raise 4/6bb 13.2%
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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN opens 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 16.4%, calls 70.4% and raises 4/6bb 13.2%. Always call: 22, A8s, K5s, K2s, Q6s-Q7s, Q2s-Q4s, J2s-J7s, T2s-T6s, 92s-94s, 84s-85s, 82s, 72s-75s, 62s-63s, 52s-53s, 42s, 32s, A2o-AJo, KJo, K2o-K9o, Q2o-QTo, J3o-J9o, T6o+, 96o+, 85o+, 74o+, 64o+, 53o+, 43o. Always raise 4/6bb: QQ+, 77, AQs+, ATs, KJs+, QTs+, J9s+, AKo. Mixed: 88-JJ, 33-66, AJs, A9s, A2s-A7s, K6s-KTs, K3s-K4s, Q8s-Q9s, Q5s, J8s, T7s+, 95s+, 86s+, 83s, 76s, 64s+, 54s, 43s, AQo, KQo, KTo, QJo, JTo, J2o, T4o, 63o.

Always fold
T5o, T2o-T3o, 92o-95o, 82o-84o, 72o-73o, 62o, 52o, 42o, 32o
Always call
22, A8s, K5s, K2s, Q6s-Q7s, Q2s-Q4s, J2s-J7s, T2s-T6s, 92s-94s, 84s-85s, 82s, 72s-75s, 62s-63s, 52s-53s, 42s, 32s, A2o-AJo, KJo, K2o-K9o, Q2o-QTo, J3o-J9o, T6o+, 96o+, 85o+, 74o+, 64o+, 53o+, 43o
Always raise 4/6bb
QQ+, 77, AQs+, ATs, KJs+, QTs+, J9s+, AKo
Mixed
88-JJ, 33-66, AJs, A9s, A2s-A7s, K6s-KTs, K3s-K4s, Q8s-Q9s, Q5s, J8s, T7s+, 95s+, 86s+, 83s, 76s, 64s+, 54s, 43s, AQo, KQo, KTo, QJo, JTo, J2o, T4o, 63o
Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.