PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN 4-bet 13.8bb

BB vs BTN 4-bet 13.8bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (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

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 20.94bbYour cards?
6bb
13.8bb
0.5bb

Tap your two cards.

Big blind's range

562 of 1,326 combos get here
Fold 63.9%Call 25%Raise 30.36bb 7%All-in 249.84bb 4.2%
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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN opens 2bb, BB 3-bets to 6bb, BTN 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 63.9%, calls 25%, raises 30.36bb 7% and goes all-in 249.84bb 4.2%. Always call: 66-77, 33-44. Mixed: 88+, 55, 22, A9s+, A2s-A7s, K8s+, K4s-K6s, Q9s+, Q6s-Q7s, Q3s, J8s+, T7s+, 96s+, 86s+, 75s+, 64s+, 53s+, 43s, 32s, AQo+.

Always fold
K7s, K3s, Q8s, Q5s, J3s, T3s-T6s, 95s, 85s, 82s, 74s, 72s, 63s, 42s, A7o, KTo+, QTo+, JTo
Always call
66-77, 33-44
Always raise 30.36bb
No hand plays this every time
Always all-in 249.84bb
No hand plays this every time
Mixed
88+, 55, 22, A9s+, A2s-A7s, K8s+, K4s-K6s, Q9s+, Q6s-Q7s, Q3s, J8s+, T7s+, 96s+, 86s+, 75s+, 64s+, 53s+, 43s, 32s, AQo+
Settings: 4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.