Saucer A
2.00 : 1.00
Soy2.00
Vinegar1.00
Total3.00
Jon once wrote about a tiny dinner-table puzzle: two saucers should each end up with equal parts soy sauce and vinegar, but one saucer got twice as much soy as it needed. This page turns that little domestic brainteaser into a polished lacquer-and-amber puzzle bench.
Each saucer should end with 1 part soy and 1 part vinegar. You can pour between saucers or top up from the bottles.
Can you match Mila's almost-annoyingly-calm three-move solve?
The left saucer is the troublemaker. It has too much soy. The right saucer only has vinegar so far. Your job: make them equally full and perfectly balanced.
Use the custom controls if you want to freestyle, or tap one of the quick moves if you already smell the solution.
For a satisfying shortcut, these buttons perform the exact fractions that matter.
When you pour half of Saucer A into Saucer B, you split its extra soy burden across both saucers. Then each saucer is missing only one pure ingredient: vinegar on the left, soy on the right. Neat little invariant, that.