PokerSolver
PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 5bb

BB vs SB 3-bet 5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · BTN opens 2.5bb, SB 3-bets to 5bb · Big blind to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 9.46bbYour cards?
1bb
2.5bb
5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 89.5%Call 0.7%All-in 19.84bb 9.8%
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 2.5bb, SB 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

BTN opens 2.5bb, SB 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the big blind (BB) folds 89.5%, calls 0.7% and goes all-in 19.84bb 9.8%. Always all-in 19.84bb: 77-KK, ATs+, KJs+, AJo+. Mixed: AA, 55-66, A9s, A7s, A5s, K9s-KTs, QJs, ATo, KQo.

Always fold
22-44, A8s, A6s, A2s-A4s, K2s-K8s, Q2s-QTs, J2s+, T2s+, 92s+, 82s+, 72s+, 62s+, 52s+, 42s+, 32s, A2o-A9o, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always all-in 19.84bb
77-KK, ATs+, KJs+, AJo+
Mixed
AA, 55-66, A9s, A7s, A5s, K9s-KTs, QJs, ATo, KQo
Settings: 6-max · 20bb · 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, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.

Rake sources for the games it fits: 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.