Rene's Puzzles

[Rene]

For The Need For Speed (pixisop): gyxodef -- in 44 ticks

I would guess that you took the time to polish this puzzle so that every last bit counts -- even one open section in the upwards pipe slows down the crates too much to solve.

Actually, this was just the intro  . It's the second version that is polished so that every last bit counts; it is just solvable without going to an approach like Timbo's:

The Need For Speed 2: xyganeb

By the way, here is my solution for number 1: gaforyb

[jf]

For The Need For Speed (pixisop): notigug

Not every bit counts if you speed up a little bit. I even got 3 open section in the upwards pipe

That is pretty cool, Timbo.

For The Need For Speed 2 (xyganeb): gosomog

I think just two pieces changed, right? I just edited my first solution, making it into the second puzzle. There were a few more ticks to be squeezed out after all, n'est-ce pas? I would like to try the Timbo-style solution too.

I'm almost afraid to see what Speed 3 will look like. 

[Werbad]

For The Need For Speed 2 (xyganeb): zirekyc
At first I didn't realize that packers process after matchers, allowing for this kind of solution
I see that jf used that same trick.

[Rene]

I used the same peculiarity of Rubicon physics:

For The Need For Speed 2 (xyganeb): cybetas

Matchers are evaluated in the same bottom-to-top phase as packers/unpackers and gates. So you match a crate and remove it with a packer in the same tick. It works with the bottom of the matcher as well, due to the evaluation order in the phase; see for example taxexuc. It looks weird that half of the time there is no crate at all on the matcher, and it still happily lights up.

Here is your chance to try a Timbo-like solution:

The Need For Speed 3: hagedef
The Need For Speed 4: limamyf

Number 3 is just one tick faster than 2, but forces you to go the Timbo-way. Number 4 is a full 6 ticks faster than 3, and gives you an oppertunity to get the maximum out of your machine.
By the way, nice solution Timbo! Your solution should work for 3 with minor modiciations, for 4 you'll need to pull some new tricks 

[jnz]

For The Need for Speed (pixisop): fididul.  A Timbo-style solution but I only have one tick to spare.  It is going to be a lot of work to get it up to shape for the later puzzles in this series.

[Werbad]

For The Need For Speed 4 (limamyf): bugebus

[Rene]

Excellent solution for The Need For Speed 4, Werbad! I like especially the compact "receiver" side.
Here is my solution: sydohif