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

BB vs CO 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 limps, BB isolates to 3bb, CO 3-bets to 6bb · 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
4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 10.14bbYour cards?
3bb
6bb
0.5bb

Tap your two cards.

Big blind's range

494 of 1,326 combos get here
Fold 57.9%Call 23.3%Raise 13.8bb 12.5%All-in 99.84bb 6.3%
Tap a hand, or type one above, to see its exact mix.

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

CO limps, BB isolates to 3bb, CO 3-bets to 6bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 57.9%, calls 23.3%, raises 13.8bb 12.5% and goes all-in 99.84bb 6.3%. Always call: 99, 66, AJs. Mixed: TT+, 77-88, 33-55, AQs+, A2s-ATs, KTs+, K5s-K7s, K3s, QJs, Q7s-Q9s, J7s+, J2s, T8s+, T6s, 96s+, 86s+, 76s, 62s+, 52s+, ATo+, A8o, KQo, KTo.

Always fold
K8s, QTs, Q4s, J5s-J6s, T7s, 32s, QTo, J9o+
Always call
99, 66, AJs
Always raise 13.8bb
No hand plays this every time
Always all-in 99.84bb
No hand plays this every time
Mixed
TT+, 77-88, 33-55, AQs+, A2s-ATs, KTs+, K5s-K7s, K3s, QJs, Q7s-Q9s, J7s+, J2s, T8s+, T6s, 96s+, 86s+, 76s, 62s+, 52s+, ATo+, A8o, KQo, KTo
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.

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.