PokerSolver
PokerSolver/6-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 12bb

BB vs SB 3-bet 12bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB limps, BB isolates to 4bb, SB 3-bets to 12bb · Big blind to act

6-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 16.96bbYour cards?
4bb
12bb

Tap your two cards.

Big blind's range

1,198 of 1,326 combos get here
Fold 62.8%Call 22.2%Raise 27.6bb 15%All-in 99.84bb 0.1%
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 4bb, SB 3-bets to 12bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

SB limps, BB isolates to 4bb, SB 3-bets to 12bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 62.8%, calls 22.2%, raises 27.6bb 15% and goes all-in 99.84bb 0.1%. Always call: 22-TT, A3s-AQs, K5s+, Q9s+, J8s+, T8s+, 97s+, 87s, 76s, 65s, 54s, AJo, KJo, JTo. Always raise 27.6bb: QQ+, AKs, K2s, Q2s-Q4s, AKo, A2o-A7o, QTo. Mixed: JJ, A2s, K3s-K4s, Q8s, 86s, 75s, AQo, ATo, A8o, KQo, KTo, K6o, QJo.

Always fold
T3s, 92s, 84s-85s, 73s-74s, 63s-64s, 52s-53s, 43s, A9o, K9o, K7o, K2o-K5o, Q8o-Q9o, Q2o-Q6o, J2o-J9o, T2o-T8o, 92o+, 84o-86o, 82o, 73o-75o, 62o+, 52o+, 42o+, 32o
Always call
22-TT, A3s-AQs, K5s+, Q9s+, J8s+, T8s+, 97s+, 87s, 76s, 65s, 54s, AJo, KJo, JTo
Always raise 27.6bb
QQ+, AKs, K2s, Q2s-Q4s, AKo, A2o-A7o, QTo
Always all-in 99.84bb
No hand plays this every time
Mixed
JJ, A2s, K3s-K4s, Q8s, 86s, 75s, AQo, ATo, A8o, KQo, KTo, K6o, QJo
Settings: 6-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.89). 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.

Tree: Two HRC solves of this game in one, callers first: the callers solve (its raises grow by 1bb, or 1x, for each player who called before) has every one of the 1,323 spots here, so the base solve gives none of them.

This spot: from the callers solve (sizes: opens 2.0bb + 1.0bb, 2.5bb + 1.0bb, 3.0bb + 1.0bb; 3-bets 2.0x + 1.0x, 3.0x + 1.0x; 4-bets 2.3x, all-in; 5-bets all-in; HRC CI 24.58).