BB vs SB all-in
Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB opens 3bb, BB 3-bets to 6bb, SB goes all-in · Big blind to act
Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 106.16bbYour cards?
6bb
99.84bb
Tap your two cards.
Big blind's range
518 of 1,326 combos get hereFold 85%Call 15%
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What is the GTO play for the big blind (BB) when SB opens 3bb, BB 3-bets to 6bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?
SB opens 3bb, BB 3-bets to 6bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the big blind (BB) folds 85% and calls 15%. Always call: 99+, AJs+, AQo+. Mixed: 66-88.
- Always fold
- 22-55, A7s-A9s, A2s-A5s, KQs, K6s-K8s, QJs, Q8s-Q9s, J9s+, J7s, T6s+, 97s+, 95s, 85s+, 75s+, 64s+, 54s, A8o-AJo, KTo+, QJo, Q8o-Q9o, T9o, 98o, 76o
- Always call
- 99+, AJs+, AQo+
- Mixed
- 66-88
Settings: Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.
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.