The record score table was here, now moved to the new page
. I'm leaving the edit history behind.
Updates since moving to this page:
I got a slightly faster speed record for Engineers than jareds's with the same 29 part size. I imagine there's a lot of room to improve by adding parts to read two at a time.
J.P. shrunk Generals from my 21 to 19 parts and was also a third faster. He also has a 48 part (old record is 61!) Ophanim which I haven't added yet because it may have an unused part (yes, my test version of the program detects those now), and I'm waiting for an optimized version without it or confirmation that it is actually needed in an obscure yet untested case.
A bunch of speed records by jareds. He tweaks five parts off his fast Teachers with a marginal speed increase too, and two parts off his speedy Police. In Judiciary (84 parts) and Seraphim (66) he builds massive machinery to improve considerably on previous speeds achieved with naive solutions by me and Dernam.
This game forces you to create art sometimes. Now a beautiful butterfly joins the christmas tree and a number of perfect arrows and other assorted shapes in the records, as I made the really speed optimized Engineers I was hinting at above. And what a whopping speed increase it is: from 75360 down to 70444 steps, by spending 81 parts instead of 29. But it is actually eating two markers from both ends on each loop of the tape, and almost all of the idle traveling is once per loop, so it should really increase its lead on longer inputs than what are currently timed. Hum, I might add an informational extra column listing a performance measure on the longer inputs that are tested anyway.
(edit 1) A novel approach led to a 76k speed record in Robomecha, replacing jareds's 94k. The implementation may not be perfect, have fun trying to do better. (but no peeking!)
(edit 2) I'm on a roll! Beat Jani's Robocats speed record ever so slightly: 18 steps (out of 34k) and one part less.
(edit 3) J.P. finalized his submissions: added a 21 part Officers (3 part reduction from mine) to go with the Generals, and reduced his Ophanim to 46, slashing a nice 15 parts off Steve496's record 61.
(edit 4) I was half anticipating this: Seeing that such an improvement to his old record was possible, jareds improved my fresh speed record in Robomecha by about a thousand steps and one part. He certainly didn't peek at mine, and I still recommend anyone to try and discover the trick themselves instead, even more than any other level.
I packed my speed Engineers a little bit tighter, losing 4k steps and four parts.
(edit 5) Ball back to jareds. Robomecha gave up 3526 steps more when I went up to 49 parts.
(edit 6) Jani (not registered here) improved speed in three simple levels where I had hoped my records were already perfect. In Robofish he cuts just eight steps adding a part. In Robocats he improves from 34358 to 34070 and even gets by with 17 parts to my 19. In Robotanks the speed improvement is actually to the size record – keeping to 25 parts he cuts 50 steps.
(edit 7) Those were short lived. (sorry!) I came up with another six step improvement in Robofish (now going from 6 to 12 parts) that I really hope is finally optimal. In Robocats I went further down to 33958 in a hairy (fitting the level) solution that I'm quite sure isn't perfect itself, possibly far from that. I wish someone came up with an even better, elegant looking solution that I could look at and be convinced that it's perfect. For some reason this is a level I don't like optimizing for speed, no matter how much I like cats. Real cats though, maybe that's it.
Jareds has nice new speed in Robocats coming down to 33153 getting by with 20 parts instead of my 28, and improved his own speed record in Academics as well, down 8k out of 317k and keeping the part count at 75.
J.P. took Steve496's Metatron record down by both losing a part and gaining speed. It's now at 72 parts.
(edit 1) Finally I managed to break Seraphim for speed. I was just trying to reach jareds's record (it was frustrating to even approach) but happened to improve it slightly. I knocked 625 steps off 357k and managed with 60 parts to his 66.
(edit 2) I found a faster 25 part Engineers, slicing 5k off Dernam's 110k steps. It took a while to get under 27 parts at all.
(edit 3) Changing algorithm from my previous tries, I too managed a 33 part Police, and it happens to be noticeably faster than Steve496's otherwise equal size record.
(edit 4) Jani had a new speed record for Robospies, and we had a back and forth exchange finding even better ones, until settling at 10382 in 25 parts found first by myself helped by his hint. The previous record was 12453 steps in 13 parts by jareds. Another speed record I made was for Androids, down from jareds's 11.8k to 9.2k. I'm quite sure the approach can be stretched even further.
(edit 5) Another set from jareds. He cuts one piece from his Judiciary (now 44) and improves speeds for his fast Police (239k to 213k) and Judiciary (373k to 328k). He also takes back fast Seraphim from me, saving 1156 steps out of 356k. Added later: It's apparently very similar, since with a small modification I got exactly the same out of mine. It may well be the best possible result.
(edit 6) One more from jareds: 6k steps and two parts off his fast Academics.
(edit 7) I removed 442 steps and 3 parts from my Roboplanes speed record solving from scratch.
) Improved my fresh Androids speed with a simple twerk that killed 115 steps and two parts.
Jani started another escalation of Robocats speed records, this time ending with my 46 part solution that works in 30094 steps. Previous record was 33153 in 20 parts by jareds.
I managed to squeeze a relatively fast implementation of Ophanim to 44 parts, breaking J.P.'s size record of 46, with less than half the steps as well.
(edit 1) Again Jani found early levels that had lacking speed records, but unfortunately again I found a minor variation that improved them even further. Previously these had no separate speed records at all, now we save 8k steps in both Robocars and Robostilts by adding 8 parts to each.
(edit 2) I found a small improvement to Robolamp speed, improving my record by 110 steps, now in 19 parts.
I tuned my new small Ophanim for speed, and got 903k steps with 60 parts to replace my old 124 part record of 1M. It's still reading just one bit at a time.
(edit 1) Jani added a speed record to another level similar to those touched yesterday: Roborockets loses 4k steps by adding 4 parts.
The 110 part Metatron by jestingrabbit posted in the thread is in fact faster than what we've seen so far, saving a nice 1.77M steps from the 6.3M achieved by the still current size record, a 72 parter by J.P.
J.P. improved his size record in Officers by one part, now at 20.
(edit 2) Jani owned the board of Robolamp intermediates and put a speed record of 25085 in 24 parts on top, replacing my 25225.
Metatron speed record got better as jestingrabbit showed a 95 part, 4.0M step solution to beat his 110 part 4.5M stepper. Apparently it's not even final yet.
Jani beat my Robocats size record badly in speed. Still in 11 parts he manages it in 34312 steps laughing at my 38400.
2010-06-11 Moved the updated table and scores.txt to the new page. Edit history continues there