PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · 5% rake, cap 3bb/BB vs SB open 2bb

BB vs SB open 2bb

4-max · SB 0.5bb · 5% rake, cap 3bb (blinds 0.5/1bb) · 100bb · SB opens 2bb · Big blind to act

4-max · 100bb · SB 0.5bb · 5% rake, cap 3bbChange game
Stacks (bb), if they differ
Pot 3bbYour cards?
1bb
2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 22.3%Call 52.8%Raise 4/6bb 24.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB opens 2bb in 4-max · SB 0.5bb · 5% rake, cap 3bb at 100bb?

SB opens 2bb in 4-max · SB 0.5bb · 5% rake, cap 3bb, 100bb: the big blind (BB) folds 22.3%, calls 52.8% and raises 4/6bb 24.9%. Always call: K7s, K2s-K4s, Q7s, Q5s, Q2s-Q3s, J7s, J2s-J4s, T4s-T6s, T2s, 94s, 85s, 82s, 74s, 72s, 52s, 32s, A4o-ATo, KJo, K9o, K3o-K4o, Q9o+, Q4o-Q5o, J7o, T8o, 97o, 86o+, 75o+, 65o, 54o. Always raise 4/6bb: 55+, ATs+, A3s-A5s, KQs, KTs, K8s, QTs+, J9s+, T8s+, 98s, 65s, AQo+. Mixed: 22-44, A6s-A9s, A2s, KJs, K9s, K5s-K6s, Q8s-Q9s, Q6s, Q4s, J8s, J5s-J6s, T7s, T3s, 95s-97s, 92s-93s, 86s+, 83s-84s, 75s+, 73s, 62s-64s, 53s+, 42s+, AJo, A2o-A3o, KQo, KTo, K5o-K8o, K2o, Q6o-Q8o, Q3o, J8o+, J4o-J6o, T9o, T6o-T7o, 98o, 96o, 85o, 64o, 53o, 43o.

Always fold
Q2o, J2o-J3o, T2o-T5o, 92o-95o, 82o-84o, 72o-74o, 62o-63o, 52o, 42o, 32o
Always call
K7s, K2s-K4s, Q7s, Q5s, Q2s-Q3s, J7s, J2s-J4s, T4s-T6s, T2s, 94s, 85s, 82s, 74s, 72s, 52s, 32s, A4o-ATo, KJo, K9o, K3o-K4o, Q9o+, Q4o-Q5o, J7o, T8o, 97o, 86o+, 75o+, 65o, 54o
Always raise 4/6bb
55+, ATs+, A3s-A5s, KQs, KTs, K8s, QTs+, J9s+, T8s+, 98s, 65s, AQo+
Mixed
22-44, A6s-A9s, A2s, KJs, K9s, K5s-K6s, Q8s-Q9s, Q6s, Q4s, J8s, J5s-J6s, T7s, T3s, 95s-97s, 92s-93s, 86s+, 83s-84s, 75s+, 73s, 62s-64s, 53s+, 42s+, AJo, A2o-A3o, KQo, KTo, K5o-K8o, K2o, Q6o-Q8o, Q3o, J8o+, J4o-J6o, T9o, T6o-T7o, 98o, 96o, 85o, 64o, 53o, 43o
Settings: 4-max · 100bb · SB 0.5bb · 5% rake, cap 3bb (small blind 0.5bb, big blind 1bb, 100bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC) (HRC CI 20.31). 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: GGPoker regular cash NL50 (rake cap 6bb there, 3bb here).

Close: GGPoker regular cash NL100 (rake cap 3.75bb there, 3bb here).

Close: GGPoker regular cash NL200 (rake cap 2.25bb there, 3bb here).

Close: PokerStars cash NL50 (rake cap 1.5bb there, 3bb here; no rake when no flop is dealt there).

Close: CoinPoker cash NL2, NL10 (rake cap 6bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL50 (rake cap 4.8bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL100 (only its tables without antes).

Close: CoinPoker cash NL200 (rake cap 1.8bb there, 3bb here; only its tables without antes).

Close: WPT Global cash NL10, NL20 (4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: WPT Global cash NL100, NL200 (rake cap 2bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: Natural8 regular cash NL50 (rake cap 6bb there, 3bb here).

Close: Natural8 regular cash NL100 (rake cap 3.75bb there, 3bb here).

Close: Natural8 regular cash NL200 (rake cap 2.25bb there, 3bb here).

Close: ACR Poker cash NL50 (rake cap 4bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL100 (rake cap 2bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

CoinPoker tables with antes: their own chart.

Rake sources: ggpoker.com/poker-games/texas-holdem (fetched 2026-10-31); Rush rake and preflop rake confirmed on our own GG exports (972 of 1,034 pots, 210 of 211); regular tables' preflop rule from natural8.com/en/poker/texas-holdem (same network, fetched 2026-10-31); pokerstars.com/poker/room/rake (fetched 2026-10-31); coinpoker.com/games/texas-holdem/ (caps and the preflop rule) and coinpoker.com/guides/poker-rake/ (5%), fetched 2026-10-31; wptglobal.com/poker/poker-table-rake (fetched 2026-10-31); natural8.com/en/poker/texas-holdem (fetched 2026-10-31; caps by players dealt in, 3-bet pots raked before the flop); acrpoker.eu/real-money/poker-rake-calculation/ (fetched 2026-10-31).

Rake: Wrong rake for GG: this solve caps the rake at 3bb, but GG caps NL200 at $4.50 (2.25bb) with 4 players dealt in and $3 (1.5bb) with 3. A solve with GG's caps is queued.