PokerSolver
PokerSolver/6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO 4-bet 13.8bb

BB vs CO 4-bet 13.8bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO opens 3bb, BB 3-bets to 6bb, CO 4-bets to 13.8bb · 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 21.26bbYour cards?
6bb
13.8bb
0.5bb

Tap your two cards.

Big blind's range

178 of 1,326 combos get here
Fold 14.4%Call 77.2%Raise 30.36bb 8%All-in 249.84bb 0.4%
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 3bb, BB 3-bets to 6bb, CO 4-bets to 13.8bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO opens 3bb, BB 3-bets to 6bb, CO 4-bets to 13.8bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the big blind (BB) folds 14.4%, calls 77.2%, raises 30.36bb 8% and goes all-in 249.84bb 0.4%. Always call: 99-JJ, 55-77, ATs, KQs, QTs+, 87s, 76s, 65s, AKo. Always raise 30.36bb: AA. Mixed: QQ-KK, 88, AKs, AJs, A9s, A5s, KTs-KJs, T9s.

Always fold
K9s
Always call
99-JJ, 55-77, ATs, KQs, QTs+, 87s, 76s, 65s, AKo
Always raise 30.36bb
AA
Always all-in 249.84bb
No hand plays this every time
Mixed
QQ-KK, 88, AKs, AJs, A9s, A5s, KTs-KJs, T9s
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.