PokerSolver/6-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 4-bet 20.7bb

BB vs SB 4-bet 20.7bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · SB opens 3bb, BB 3-bets to 9bb, SB 4-bets to 20.7bb · Big blind to act

6-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 30.66bbYour cards?

9bb

20.7bb

Tap your two cards.

Big blind's range

658 of 1,326 combos get here

Fold 67.1%Call 7.3%All-in 59.84bb 25.6%

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 3bb, BB 3-bets to 9bb, SB 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 60bb?

SB opens 3bb, BB 3-bets to 9bb, SB 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the big blind (BB) folds 67.1%, calls 7.3% and goes all-in 59.84bb 25.6%. Always call: 86s. Always all-in 59.84bb: 88-KK, 44-66, AQs+, KTs+, QTs+, JTs, AQo+, KJo+. Mixed: AA, AJs, ATo-AJo, KTo, QJo, JTo.

Always fold: T2s, 92s-94s, 83s, A9o, A2o-A6o, K9o, K2o-K5o, Q4o-Q9o, J7o-J9o, J5o, T9o, T6o-T7o, 96o+
Always call: 86s
Always all-in 59.84bb: 88-KK, 44-66, AQs+, KTs+, QTs+, JTs, AQo+, KJo+
Mixed: AA, AJs, ATo-AJo, KTo, QJo, JTo

Settings: 6-max · 60bb · 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, 60bb stacks, 5% rake capped at 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.