PokerSolver
PokerSolver/5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO 3-bet 4bb

BB vs CO 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · HJ opens 2bb, CO 3-bets to 4bb · Big blind to act

5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 8.3bbYour cards?
1bb
2bb
4bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 93.1%Call 1.8%Raise 9.2bb 3.2%All-in 59.84bb 2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when HJ opens 2bb, CO 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 60bb?

HJ opens 2bb, CO 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the big blind (BB) folds 93.1%, calls 1.8%, raises 9.2bb 3.2% and goes all-in 59.84bb 2%. Always all-in 59.84bb: JJ. Mixed: QQ+, 88-TT, 55-66, 33, A7s+, A4s-A5s, KTs, Q9s, J3s, T7s, 96s, 76s, AQo+.

Always fold
77, 44, 22, A6s, A2s-A3s, KJs+, K2s-K9s, QTs+, Q2s-Q8s, J4s+, J2s, T8s+, T2s-T6s, 97s+, 92s-95s, 82s+, 72s-75s, 62s+, 52s+, 42s+, 32s, A2o-AJo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always raise 9.2bb
No hand plays this every time
Always all-in 59.84bb
JJ
Mixed
QQ+, 88-TT, 55-66, 33, A7s+, A4s-A5s, KTs, Q9s, J3s, T7s, 96s, 76s, AQo+
Settings: 5-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 24.3). 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.