PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 4-bet 13.8bb

BB vs BTN 4-bet 13.8bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN opens 2bb, BB 3-bets to 6bb, BTN 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
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 21.1bbYour cards?
6bb
13.8bb
0.5bb

Tap your two cards.

Big blind's range

686 of 1,326 combos get here
Fold 74.1%Call 14.3%All-in 99.84bb 11.6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2bb, BB 3-bets to 6bb, BTN 4-bets to 13.8bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

BTN opens 2bb, BB 3-bets to 6bb, BTN 4-bets to 13.8bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 74.1%, calls 14.3% and goes all-in 99.84bb 11.6%. Always call: 88, 44, AJs, KQs. Always all-in 99.84bb: QQ-KK, AKs, AKo. Mixed: AA, 99-JJ, 55-77, AQs, ATs, A2s-A8s, K9s-KJs, Q9s-QTs, Q7s, J9s+, J5s, T9s, T7s, 98s, 86s+, 76s, 64s+, 43s, ATo-AQo, A4o-A5o.

Always fold
K3s-K8s, QJs, Q8s, Q5s, Q3s, J6s-J8s, J2s-J3s, T8s, T4s-T6s, T2s, 95s-97s, 75s, 72s, 62s, 53s+, 42s, 32s, A7o, A3o, KTo+, K3o, QJo, J9o+, T8o+, 75o+, 65o
Always call
88, 44, AJs, KQs
Always all-in 99.84bb
QQ-KK, AKs, AKo
Mixed
AA, 99-JJ, 55-77, AQs, ATs, A2s-A8s, K9s-KJs, Q9s-QTs, Q7s, J9s+, J5s, T9s, T7s, 98s, 86s+, 76s, 64s+, 43s, ATo-AQo, A4o-A5o
Settings: 5-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.