Complicated Gen Check (Long Lines 3+ Pages)
Step 1: Go to your wolf's page and open the bloodline tab. For this example I will be using my deceased wolf, Loki's, bloodlines.

Step 2: Okay, since this line is several pages, we're going to work backward, starting with Loki. If you'd like you may work through the check normally, but I find it easier to go backward in longer lines. Loki will be thought of as G1 for now.
Step 3: Since we're going backward we're going to mark Loki's parents as G2. Remember: We are going backward, Loki's parents obviously are not actually 2nd generation.
Step 4: Continue to mark each line accordingly until you reach the end of the first page.

Dasvidaniya-
Dionysus- Step 7: Repeat step 6. Lay out each wolf's bloodline and cross out the overlapping lines until one wolf's lineage remains. You will now have a number on the very last line. If you counted and did this check correctly, this will be your wolf's current generation number. Loki's generation goes back way farther than visually possible to record.
*These longer checks typically aren't practical unless you're checking for inbreeding. I, personally, don't care how many generations down a wolf is, as it doesn't affect the quality of a pup, but some people just want designer wolves. As a rule of thumb, the lower gen, the better :)