Most advanced charts are grouped in 2-blind increments (14–16, 12–14, 10–12, etc.). To build them, we always started from the middle level.
For example, the 14–16bb chart is based on a study at 15bb.
What if you have 14bb?
Should you look at the 14–16 chart or the 12–14 chart?
In reality, it doesn’t matter. If one chart shows a limp and the other shows a shove, it means the hand lies in a close EV zone: both limp and shove will yield very similar results.
These charts work a little differently from the others, as some are actually push-or-fold charts running from 0bb up to 6bb.
If you see any of the following notations in a chart cell, it’s a push-or-fold chart, and you can use it all the way down to 0bb:
Some intermediate colors in the 4–6bb charts don’t carry a particular meaning: they simply help visualize how the ranges evolve as stacks shrink.
Roughly speaking, the lighter the color, the earlier the hand becomes a push at short stack.
To aid memorization, the minimum push/call thresholds are written:
These thresholds are crucial to memorize.
Concrete example, BB vs SB all-in in Heads-up below 6bb:
You can call all offsuit hands below 2.7bb (🔴), and all suited hands below 3.4bb (🟢).