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

BB vs BTN 4-bet 13.8bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN opens 2bb, BB 3-bets to 6bb, BTN 4-bets to 13.8bb · Big blind to act

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

646 of 1,326 combos get here
Fold 70.3%Call 20.4%Raise 30.36bb 5.7%All-in 249.84bb 3.7%
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 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

BTN opens 2bb, BB 3-bets to 6bb, BTN 4-bets to 13.8bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the big blind (BB) folds 70.3%, calls 20.4%, raises 30.36bb 5.7% and goes all-in 249.84bb 3.7%. Always call: 22-88. Always all-in 249.84bb: AKo. Mixed: 99+, A2s+, KTs+, K7s, Q9s+, Q7s, J9s+, J3s, T6s+, 97s, 87s, 76s, 64s+, 53s+, AQo.

Always fold
K8s, K4s-K6s, K2s, Q5s-Q6s, J7s-J8s, J4s, T3s-T5s, 98s, 96s, 92s-93s, 83s-86s, 74s-75s, 63s, 52s, 42s+, 32s, A9o-AJo, A5o, KTo+, K4o, QTo+, Q8o, J9o+, T7o+, 98o, 85o, 53o+
Always call
22-88
Always raise 30.36bb
No hand plays this every time
Always all-in 249.84bb
AKo
Mixed
99+, A2s+, KTs+, K7s, Q9s+, Q7s, J9s+, J3s, T6s+, 97s, 87s, 76s, 64s+, 53s+, AQo
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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.