SB 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) · 40bb · BTN opens 3bb, SB 3-bets to 6bb, BTN 4-bets to 13.8bb · Small blind to act
Fits exactlyno game we have checked
CloseCP1 games
- CPCoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 21.76bbYour cards?
6bb
1bb
13.8bb
Tap your two cards.
Small blind's range
286 of 1,326 combos get hereFold 50.6%Call 13.1%All-in 39.84bb 36.3%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the small blind (SB) when BTN opens 3bb, SB 3-bets to 6bb, BTN 4-bets to 13.8bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?
BTN opens 3bb, SB 3-bets to 6bb, BTN 4-bets to 13.8bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the small blind (SB) folds 50.6%, calls 13.1% and goes all-in 39.84bb 36.3%. Always call: 88, A9s. Always all-in 39.84bb: TT+, 66, AJs+, AQo+. Mixed: 99, 55, ATs, A7s-A8s, A3s-A5s, K9s-KTs, QTs+, AJo, KQo.
- Always fold
- A6s, A2s, Q9s, J9s+, T9s, A9o-ATo, KTo-KJo, QTo+
- Always call
- 88, A9s
- Always all-in 39.84bb
- TT+, 66, AJs+, AQo+
- Mixed
- 99, 55, ATs, A7s-A8s, A3s-A5s, K9s-KTs, QTs+, AJo, KQo
Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.