PokerSolver
PokerSolver/6-max · 20bb · SB 0.5bb · 5% rake, cap 3bb/BB vs SB 3-bet 6bb

BB vs SB 3-bet 6bb

6-max · SB 0.5bb · 5% rake, cap 3bb (blinds 0.5/1bb) · 20bb · SB limps, BB isolates to 3bb, SB 3-bets to 6bb · Big blind to act

6-max · 20bb · SB 0.5bb · 5% rake, cap 3bbChange game
Stacks (bb), if they differ
Pot 9bbYour cards?
3bb
6bb

Tap your two cards.

Big blind's range

1,286 of 1,326 combos get here
Fold 66.4%Call 19.1%All-in 20bb 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 SB limps, BB isolates to 3bb, SB 3-bets to 6bb in 6-max · SB 0.5bb · 5% rake, cap 3bb at 20bb?

SB limps, BB isolates to 3bb, SB 3-bets to 6bb in 6-max · SB 0.5bb · 5% rake, cap 3bb, 20bb: the big blind (BB) folds 66.4%, calls 19.1% and goes all-in 20bb 14.5%. Always call: K9s-KTs, QJo. Always all-in 20bb: KK, TT-JJ, 88, 44-66, AQs+, ATs, ATo+, KQo. Mixed: AA, QQ, 99, 77, 22-33, AJs, A3s-A9s, KJs+, K2s-K8s, Q6s+, Q2s-Q4s, J5s+, J3s, T2s+, 98s, 94s-96s, 86s+, 83s, 76s, 64s+, 54s, 42s, A4o-A9o, K9o-KJo, K5o, K3o, Q9o-QTo, JTo, J8o, T8o+, 98o, 76o, 53o.

Always fold
Q5s, J4s, 97s, 92s-93s, 84s-85s, 72s-75s, 62s-63s, 52s-53s, 43s, 32s, A2o-A3o, K6o-K8o, K4o, Q4o-Q8o, J9o, J2o-J7o, T2o-T7o, 95o-97o, 92o-93o, 82o+, 74o-75o, 72o, 62o+, 54o, 42o+, 32o
Always call
K9s-KTs, QJo
Always all-in 20bb
KK, TT-JJ, 88, 44-66, AQs+, ATs, ATo+, KQo
Mixed
AA, QQ, 99, 77, 22-33, AJs, A3s-A9s, KJs+, K2s-K8s, Q6s+, Q2s-Q4s, J5s+, J3s, T2s+, 98s, 94s-96s, 86s+, 83s, 76s, 64s+, 54s, 42s, A4o-A9o, K9o-KJo, K5o, K3o, Q9o-QTo, JTo, J8o, T8o+, 98o, 76o, 53o
Settings: 6-max · 20bb · SB 0.5bb · 5% rake, cap 3bb (small blind 0.5bb, big blind 1bb, 20bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC) (HRC CI 24.03). 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: GGPoker Rush & Cash NL2, NL10, NL50, NL100, NL200; GGPoker regular cash NL200; Natural8 Rush & Cash NL2, NL10, NL50, NL100, NL200; Natural8 regular cash NL200.

Close: GGPoker regular cash NL2, NL10 (rake cap 10bb there, 3bb here).

Close: GGPoker regular cash NL50 (rake cap 8bb there, 3bb here).

Close: GGPoker regular cash NL100 (rake cap 5bb there, 3bb here).

Close: PokerStars Zoom NL10 (rake cap 15bb there, 3bb here; 4.5% rake there, 5% here; no rake when no flop is dealt there).

Close: PokerStars Zoom NL50 (rake cap 4bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars Zoom NL100 (rake cap 2.5bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars cash NL10 (rake cap 15bb there, 3bb here; 4.25% rake there, 5% here; no rake when no flop is dealt there).

Close: PokerStars cash NL50 (rake cap 4bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars cash NL100 (rake cap 2.5bb there, 3bb here; no rake when no flop is dealt there).

Close: CoinPoker cash NL2, NL10 (rake cap 10bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL50 (rake cap 8bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL100 (rake cap 5bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL200 (only its tables without antes).

Close: WPT Global cash NL10, NL20 (rake cap 6bb there, 3bb here; 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 4bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: WPT Global cash NL400, NL600, NL1000 (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 NL2, NL10 (rake cap 10bb there, 3bb here).

Close: Natural8 regular cash NL50 (rake cap 8bb there, 3bb here).

Close: Natural8 regular cash NL100 (rake cap 5bb there, 3bb here).

Close: ACR Poker cash NL2 (rake cap 150bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL10 (rake cap 30bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL50 (rake cap 6bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL100 (its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL200 (rake cap 1.5bb 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); natural8.com/en/poker/rush-and-cash (fetched 2026-10-31; caps $0.06 to $6, 3bb at every stake); the same GGNetwork pools as GGPoker, whose preflop rake we confirmed on GG exports; natural8.com/en/poker/texas-holdem (fetched 2026-10-31; caps by players dealt in, 3-bet pots raked before the flop); 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); acrpoker.eu/real-money/poker-rake-calculation/ (fetched 2026-10-31).