PokerSolver
PokerSolver/6-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 2bb, SB 3-bets to 4bb · Big blind to act

6-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.96bbYour cards?
1bb
2bb
4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 86.3%Call 11.3%Raise 9.2bb 1.8%All-in 199.84bb 0.6%
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 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

CO opens 2bb, SB 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the big blind (BB) folds 86.3%, calls 11.3%, raises 9.2bb 1.8% and goes all-in 199.84bb 0.6%. Always call: QQ, 77-88, A4s, A2s. Mixed: KK+, 99-JJ, 22-66, A5s+, A3s, KTs+, K5s-K6s, K2s, QTs+, J9s+, T9s, 97s+, 95s, 86s, 65s, 53s, AJo+, KQo, QTo+.

Always fold
K7s-K9s, K3s-K4s, Q2s-Q9s, J2s-J8s, T2s-T8s, 96s, 92s-94s, 87s, 82s-85s, 72s+, 62s-64s, 54s, 52s, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o-Q9o, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
QQ, 77-88, A4s, A2s
Always raise 9.2bb
No hand plays this every time
Always all-in 199.84bb
No hand plays this every time
Mixed
KK+, 99-JJ, 22-66, A5s+, A3s, KTs+, K5s-K6s, K2s, QTs+, J9s+, T9s, 97s+, 95s, 86s, 65s, 53s, AJo+, KQo, QTo+
Settings: 6-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 28.67). 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.