PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO 3-bet 5bb

BB vs CO 3-bet 5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · CO limps, BB isolates to 2.5bb, CO 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 · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 8.96bbYour cards?
2.5bb
5bb
0.5bb

Tap your two cards.

Big blind's range

444 of 1,326 combos get here
Fold 53.7%Call 19.8%Raise 11.5bb 20.6%All-in 39.84bb 5.9%
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 2.5bb, CO 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

CO limps, BB isolates to 2.5bb, CO 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the big blind (BB) folds 53.7%, calls 19.8%, raises 11.5bb 20.6% and goes all-in 39.84bb 5.9%. Always call: 77, AJo. Always raise 11.5bb: AA. Mixed: TT-KK, 88, 55-66, A5s+, A2s-A3s, KJs+, K9s, QTs+, JTs, T8s+, 98s, 87s, 85s, 76s, 65s, 54s, 32s, AQo+, A9o-ATo, A7o, K9o+, JTo.

Always fold
Q8s, J7s-J8s, 75s, T9o
Always call
77, AJo
Always raise 11.5bb
AA
Always all-in 39.84bb
No hand plays this every time
Mixed
TT-KK, 88, 55-66, A5s+, A2s-A3s, KJs+, K9s, QTs+, JTs, T8s+, 98s, 87s, 85s, 76s, 65s, 54s, 32s, AQo+, A9o-ATo, A7o, K9o+, JTo
Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.