I can't help it, I get bored at such long routes with nothing special to do on the way. I will therefore not rate it.
On my first try I was 2 off, and there was no way I was going to repeat it to cut the 2. Maybe a smaller scale?
Today - FINALLY - I achieved to break through and reach target!
Ok, in 308 steps, but well, it can only improve from there... :D
* 10 minutes later: 2 off! Usually, I feel sad at reaching 2 off, but in this case, am so happy to be that close... LOL
** 1 minute later: Gooooot iiiiit! (Bouncing around my chair)... It makes my day.
What kept me stuck without breaking through for so long, is that the way to park the block to free the unidirectional one is - for me - totally counter intuitive.
hmmm... Out of control. No method. Intuition of no help. I just did lot of testing and tried to optimize the first route leading me 4 off. I was very lucky to win, because I'm sure there are different routes leading 4 off. It's pure luck that I caught the correct one.
That was a story in 3 episodes for me:
1. Totally confused.
2. A 4 off route.
3. Realizing a key thing about that board, allowing me to win the immediate next try.
Very interesting all along.
Insights