ParlorGame
Game found in the Parlor.
Note found in the room containing instructions.
"There will always be at least one box which displays only true statements"
"There will always be at least one box which displays only false statements"
"Only one box has a prize within. The other 2 are always empty"
"The true box does not always contain the prize"
Results
Day 1
Blue: "All three boxes contain gems", contradicts rules, FALSE
White: "The other two boxes contain gems", contradicts rules, FALSE
Black: "This box contains gems", true box must exist and others have been false, TRUE
Sucessfully chose Black containing 2 Gem