PokerSolver
PokerSolver/6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO 3-bet 4bb

BB vs CO 3-bet 4bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO limps, BB isolates to 2bb, CO 3-bets to 4bb · 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 · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.46bbYour cards?
2bb
4bb
0.5bb

Tap your two cards.

Big blind's range

446 of 1,326 combos get here
Fold 27.9%Call 59.5%Raise 9.2bb 11.5%All-in 249.84bb 1.1%
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 2bb, CO 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO limps, BB isolates to 2bb, CO 3-bets to 4bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the big blind (BB) folds 27.9%, calls 59.5%, raises 9.2bb 11.5% and goes all-in 249.84bb 1.1%. Always call: JJ-QQ, 77-99, 55, 33, A6s, A2s, KJs, K7s-K8s, K4s, QJs, 76s, AQo, A9o, KJo, JTo. Mixed: KK+, TT, 66, 44, 22, A7s+, A3s-A4s, K9s-KTs, K5s, Q9s-QTs, Q4s-Q5s, J8s+, J6s, T6s+, 97s+, 86s+, 75s, 64s, 52s, AKo, KQo, KTo, K7o, QTo.

Always fold
J5s, T4s, 65s, T7o
Always call
JJ-QQ, 77-99, 55, 33, A6s, A2s, KJs, K7s-K8s, K4s, QJs, 76s, AQo, A9o, KJo, JTo
Always raise 9.2bb
No hand plays this every time
Always all-in 249.84bb
No hand plays this every time
Mixed
KK+, TT, 66, 44, 22, A7s+, A3s-A4s, K9s-KTs, K5s, Q9s-QTs, Q4s-Q5s, J8s+, J6s, T6s+, 97s+, 86s+, 75s, 64s, 52s, AKo, KQo, KTo, K7o, QTo
Settings: 6-max · 250bb · 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, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 29.27). 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.