Using outdated puzzles from lichess

[Cannonbait]

Hi, lichess has two different sets of puzzles, where the older one is deprecated due to faulty generation. The exact ID can be found here

See this commit. I noticed that blitz-tactics uses these puzzles, which in turn breaks the "View Puzzle on Lichess" button served under, for example.

I don't know the exact details of why these puzzles are considered faulty

[linrock]

Thanks for reporting! I've removed usage of the older lichess puzzles from all game modes except Repetition so far. I'll close this issue once the Repetition levels are fixed.

I don't know the exact details of why these puzzles are considered faulty

i think a high number of the older puzzles had issues like counting good-but-not-best as incorrect and presenting a lot of positions where you could "retry" after playing a sub-optimal move. the newer puzzles are consistently more accurate as valid puzzles.