[Reason077]

I got the chess one pretty easily but I'm stuck on "The elements in your password must have atomic numbers that add up to 200". I haven't found a way to satisfy both this and "The roman numerals in your password should multiply to 35" simultaneously. Iodine (I) and Uranium (U) have high atomic numbers which blow out way higher than 200 and I haven't found a way to avoid them.

Edit: OK, just realised that it's case sensitive. So I can use a lower case "u" to avoid it being interpreted as an element.

[porphyra]

I had a chess move that's Rg8+ but Rg has an atomic number of 111...

[dreday]

You wanna start the chess move with Q...

[plewd]

Many of the puzzles are different for each player, I personally had Rf8+

[dunham]

Yeah, I got an Rf8+ and between that and the roman numerals, didn't know how to get down to 200. Then I tried to move the egg to a different spot and the chicken died.

[porphyra]

But the best move in the chess puzzle I got requires moving the rook.

[sobriquet9]

Qxg7+. Chess subreddit has a counter of days without a puzzle that starts with a queen sacrifice.

[sicariusnoctis]

Technically impossible since queens cannot materialize out of thin air, except in crazyhouse.

Also Rg1+ is a rather pretty attraction/clearance sacrifice/double check/mate-in-2.

[porphyra]

The chess puzzle is different for everyone...

[halestock]

XXXV also works for the roman numerals.

[sobriquet9]

XXXV * I = 35. Po (from Poland), V, and I add up to 160, so you need to add Zr.

[andy_ppp]

Seems to accept Qxh6+ as well as the other answer given here, I guess both work!