Drill PokerEight blinds on the cutoff means exactly a third of the deck shoves: 67 hands, 33% of combos. It's one of the most frequent and most forgiving push/fold marks — the range is so wide that the only way to make a serious mistake is excessive caution.
Push from CO, 8 BB stack
The base: every pair and any ace — suited or offsuit — kings from K5s and KTo, queens from Q6s, and the broadway-and-connector cluster: QJo, QTo, JTo, JTs, T9s, 98s, J8s, T7s.
Against 5 BB the range trimmed neatly along the bottom edge: K9o, Q9o, J9o and T9o are gone. The boundary is easy to remember: offsuit hands without an ace have to reach KTo/QTo/JTo at 8 BB, and everything "nine-kicker" is already a fold. The suited hands barely suffered — K5s, Q6s and T7s hold their place in the range: the suit adds exactly the equity their offsuit neighbours are missing.
With antes it all comes back: the range widens by about a third, and yesterday's folds shove again. That's why it pays to know not one grid but the direction of the shift — and the trainer builds that faster than rote memorising: 150–200 decisions per stack zone, and the line holds on its own.