Rust lake's dying strategy, how does rust lake play chess?

Get the knife on the right, and then use this knife to cut the potatoes in Frank's hand into kings. Down 1, up 1, up 2, up 1, up 1, the horse can only walk on the diagonal of 3X2, but can't walk where X is. That's it.

Rust lake's dying strategy, rust lake's specific steps:

Chess-1926 autumn, black wallpaper on the second floor, Frank can stand up and walk, Albert is a horse, Frank is a bishop, Frank kills Albert, gets Albert's brain, and the Albert line ends.

Get the knife on the right and use it to cut the potatoes in Frank's hand into kings. Down 1, up 1, down 2, up 2, up 1, up 1, start playing chess. Horses can only walk on the diagonal of 3X2, not where X is. Get Albert's brain and put it in a bottle (eat it! ) This level is over.

3. In the second game, take the letter cerebrum, M as the chess king. Then I went back to the main interface and found Frank holding Kim with a dagger (or not? I can't remember), then take the brain and soak it in a bottle.

There is only one way to solve this problem, and that is dispensing medicine. First, we saw a sign on the wall: +→ 1→ 2.

Using the balance on the side, we can easily calculate ~→3, →→→→ 5×→ 4, so the formula of alchemy medicine is ~→ 3 +×→ 4 +×→ 4 +×→ 5.