In 2.16:

3 says I'm wrong for saying its alive. It's clearly alive. It's a big black formation with one eye in the corner and one eye at the bottom

4 Says I'm wrong for saying its alive. It's clearly alive. It's a big black formation with two eyes diagonal from each other, one on the edge.

In 2.17:

2 shows me a black formation with two eyes already made and says "white to play. Make two eyes."

3 is doable but it also says "white to play" while showing a black formation.

4 shows me a black formation with two eyes already made and says "white to play. Make two eyes."

5 shows me a black formation with two eyes already made and says "white to play. Make two eyes."

6 shows me a black formation with two eyes already made and says "white to play. Make two eyes."

FYI I'm using firefox

Just an additional clarification in case the other reply doesn't help: Your phrasing of "shows me a black formation" doesn't make sense unless it is rendering the page wrong for you. All the problems you've listed show both white and black stones on the board.

For example:

> In 2.16:

> 3 says I'm wrong for saying its alive. It's clearly alive. It's a big black formation with one eye in the corner and one eye at the bottom

Should look like:

  |
  | w w w w w
  | b b b b w
  |   w   b w
  ^^^^^^^^^^^^^

(I'm also using Firefox and it's rendering correctly for me)

For me 2.16 3 looks like:

|

| B B B B B

| B B B B B

| _ B _ B B

^^^^^^^

Link to screenshot: https://imgur.com/a/odDYg9K

When I use Librewolf I think I get the intended render, but using Firefox this is what I get

The lessons are correct, but may be more obvious with better definitions.

"Alive" pieces remain permanent throughout the game. In both 2.16 examples, white can capture black by filling the gaps.

"Eyes" only have one space each and are fully surrounded by a single color. In both 2.16 examples. there are no eyes. Look at 2.17 with this new definition to see where the gaps are not yet eyes.

2.17 (3) is asking you to place a white piece within the black formation. This renders correctly for me in firefox.

Here's a link to a screenshot of what I see so you can see what I'm talking about: https://imgur.com/a/odDYg9K

Ah, I see. Not rendering white makes these lessons impossible.

It's interesting that the shading for the white pieces is preserved. I wonder if a dark mode extension is affecting the colors.

oooo I'm dumb lol. Yea I'm forcing dark mode

I'm glad we figured it out! Have fun.