PokerSolver
PokerSolver/6-max · 100bb · SB 0.4bb · 5% rake, cap 3bb/BB vs BTN open 3bb

BB vs BTN open 3bb

6-max · SB 0.4bb · 5% rake, cap 3bb (blinds 0.4/1bb) · 100bb · BTN opens 3bb · Big blind to act

6-max · 100bb · SB 0.4bb · 5% rake, cap 3bbChange game
Stacks (bb), if they differ
Pot 4.4bbYour cards?
1bb
3bb
0.4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 68.9%Call 19.3%Raise 6/9bb 11.8%
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 3bb in 6-max · SB 0.4bb · 5% rake, cap 3bb at 100bb?

BTN opens 3bb in 6-max · SB 0.4bb · 5% rake, cap 3bb, 100bb: the big blind (BB) folds 68.9%, calls 19.3% and raises 6/9bb 11.8%. Always call: 99, 22-33, A6s-ATs, A2s-A4s, K9s-KTs, K6s, K3s, QTs, Q6s, 86s, 64s, 53s, A8o-AJo, KJo, QTo. Always raise 6/9bb: JJ+, AJs+, A5s, KJs+, K5s, J8s, T9s, 76s, AKo. Mixed: TT, 44-88, K7s-K8s, K4s, K2s, QJs, Q7s-Q9s, Q4s-Q5s, J9s+, J7s, T7s-T8s, 97s+, 87s, 75s, 65s, 54s, AQo, A5o, KQo, KTo, QJo, JTo.

Always fold
Q2s-Q3s, J2s-J6s, T2s-T6s, 92s-96s, 82s-85s, 72s-74s, 62s-63s, 52s, 42s+, 32s, A6o-A7o, A2o-A4o, K2o-K9o, Q2o-Q9o, J2o-J9o, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
99, 22-33, A6s-ATs, A2s-A4s, K9s-KTs, K6s, K3s, QTs, Q6s, 86s, 64s, 53s, A8o-AJo, KJo, QTo
Always raise 6/9bb
JJ+, AJs+, A5s, KJs+, K5s, J8s, T9s, 76s, AKo
Mixed
TT, 44-88, K7s-K8s, K4s, K2s, QJs, Q7s-Q9s, Q4s-Q5s, J9s+, J7s, T7s-T8s, 97s+, 87s, 75s, 65s, 54s, AQo, A5o, KQo, KTo, QJo, JTo
Settings: 6-max · 100bb · SB 0.4bb · 5% rake, cap 3bb (small blind 0.4bb, big blind 1bb, 100bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC). 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 NL5, NL25; Natural8 Rush & Cash NL5, NL25.

Close: GGPoker regular cash NL500 (rake cap 1.6bb there, 3bb here).

Close: CoinPoker cash NL500 (rake cap 1.6bb there, 3bb here; only its tables without antes).

Close: WPT Global cash NL5 (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 NL50 (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: Natural8 regular cash NL500 (rake cap 1.6bb there, 3bb here).

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; 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).