What percentage of hands does Hijack open at 20bb?

Hijack open-raises 21% of hands at 20bb effective, 9-max - 38 of the 169 starting hands go in at full frequency.

Is this a GTO or an exploit range?

This is a GTO (game-theory-optimal) chip-EV range, balanced to be unexploitable against any opponent. Exploit ranges that deviate from this against a specific known tendency are a separate, Pro-tier solve.

Ranges / Hijack 20bb

Hijack push/fold chart - 20bb, 9-max

Hijack open-raises 21% of hands here at 20bb effective (38 of 169 starting hands go in at full frequency). The hijack has just two players left to act before the button, so the range opens up a step from under the gun.

At this depth you're deep enough that a few of the weakest hands here play slightly better as a raise you can fold to real aggression than as a flat shove, though shoving stays close to optimal for the bulk of this range.

ShoveFold

Hijack shove range at 20bb, hand by hand

Always shove — 38 of the 169 starting hands: 33+, A4s+, K9s+, Q9s+, J9s+, T9s, 98s, ATo+, KQo

Less than always — 17 hands the solver shoves only some of the time: J8s (99%), T8s (99%), 22 (99%), A2s (98%), K7s (98%), A3s (97%), KJo (91%), QTo (86%), K8s (60%), Q8s (49%), 87s (48%), KTo (34%), QJo (32%), JTo (26%), K6s (13%), A9o (4%), 97s (2%).

Across every hand dealt, that is 21% of hands played, weighted by how often each one is dealt.

Compared to 25bb

Hijack shoves 12 hands at 20bb that it folds at 25bb: A7s, A6s, A3s, A2s, K8s, K7s, J8s, ATo, QTo, T8s, 98s, 22.

Hands right on the edge

These aren't clean shove-or-fold decisions - the solver mixes its strategy on each one: K8s (60% shove), Q8s (49% shove), QJo (32% shove), KTo (34% shove), JTo (26% shove), 87s (48% shove).

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Hijack at other stack depths

Other positions at 20bb

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Learn the theory behind this chart

How to Read a Push/Fold Chartguide
Short Stack Poker Strategyguide
What Is an Effective Stack? A Guide to Stack Depthguide
Push/Fold Strategy by Stack Depth: 5bb vs. 10bb vs. 15bbguide
Push/Fold Pokerglossary
Shoving Rangeglossary

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