PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN vs CO 4-bet 13.8bb

BTN vs CO 4-bet 13.8bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 2bb, BTN 3-bets to 6bb, CO 4-bets to 13.8bb · Button to act

4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 21.94bbYour cards?
6bb
0.5bb
1bb
13.8bb

Tap your two cards.

Button's range

442 of 1,326 combos get here
Fold 32.8%Call 57.2%Raise 30.36bb 9.5%All-in 199.84bb 0.5%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO opens 2bb, BTN 3-bets to 6bb, CO 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO opens 2bb, BTN 3-bets to 6bb, CO 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the button (BTN) folds 32.8%, calls 57.2%, raises 30.36bb 9.5% and goes all-in 199.84bb 0.5%. Always call: QQ, TT, 22-88, AJs-AQs, A6s-A8s, A2s-A3s, K9s-KTs, K2s, QJs, J9s, T9s, 97s, 75s+, 64s+, 53s+. Always raise 30.36bb: AA. Mixed: KK, JJ, 99, AKs, A9s-ATs, A4s-A5s, KJs+, K3s-K8s, Q8s-QTs, JTs, J8s, T7s-T8s, 98s, 86s+, 74s, ATo+, KJo+.

Always fold
Q2s, A8o-A9o, KTo, QTo+, JTo
Always call
QQ, TT, 22-88, AJs-AQs, A6s-A8s, A2s-A3s, K9s-KTs, K2s, QJs, J9s, T9s, 97s, 75s+, 64s+, 53s+
Always raise 30.36bb
AA
Always all-in 199.84bb
No hand plays this every time
Mixed
KK, JJ, 99, AKs, A9s-ATs, A4s-A5s, KJs+, K3s-K8s, Q8s-QTs, JTs, J8s, T7s-T8s, 98s, 86s+, 74s, ATo+, KJo+
Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.