How to play
Mob: guess any Minecraft mob. You'll see whether the answer came out in the same update, has the same health, lives in the same dimension, acts the same way (passive, neutral, hostile or boss) and is the same type (animal, undead, aquatic...).
Item: guess any item or block. You'll see the update it came out in, its category, how many stack together, and whether it can be crafted.
Versions are grouped by major update, so 1.20.5 counts as 1.20 and every 1.21 drop counts as 1.21. "Pre-1.0" means Classic, Alpha and Beta. 26.1, 26.2 and 26.3 are the newer year-numbered releases, and "Snapshot" is what the latest snapshot has added so far. You get 10 guesses for each puzzle; after that the answer is shown. New puzzles start every day at midnight Central time.