PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 3-bet 6bb

BB vs SB 3-bet 6bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO opens 2bb, SB 3-bets to 6bb · Big blind to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 9.64bbYour cards?
1bb
2bb
6bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 88.7%Call 6.4%Raise 13.8bb 4.2%All-in 99.84bb 0.7%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2bb, SB 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

CO opens 2bb, SB 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 88.7%, calls 6.4%, raises 13.8bb 4.2% and goes all-in 99.84bb 0.7%. Always call: 88, AQs, 65s. Always raise 13.8bb: AA. Mixed: 99-KK, 33-77, AKs, A3s-AJs, KTs+, K8s, QTs+, J9s+, T8s+, 98s, 87s, 76s, 64s, AQo+, KQo.

Always fold
22, A2s, K9s, K2s-K7s, Q2s-Q9s, J2s-J8s, T2s-T7s, 92s-97s, 82s-86s, 72s-75s, 62s-63s, 52s+, 42s+, 32s, A2o-AJo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
88, AQs, 65s
Always raise 13.8bb
AA
Always all-in 99.84bb
No hand plays this every time
Mixed
99-KK, 33-77, AKs, A3s-AJs, KTs+, K8s, QTs+, J9s+, T8s+, 98s, 87s, 76s, 64s, AQo+, KQo
Settings: 4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.