|Level set||Chip's Challenge Level Pack 2|
|Hint||Wow! You made it this far?!|
|Bold time||481 (the Melinda time is unknown)|
Keep Trying is the 140th level in Chip's Challenge Level Pack 2. As indicated, Chip will run into a lot of deadly obstacles while playing Keep Trying. Eric Schmidt did not specify a time limit in the original level, but the addition of one makes Keep Trying one of the hardest bolds currently in existence, due to the long random force floor section at the end. This is hard enough that Keep Trying is one of only three bolds David Stolp has not yet matched. The route requires odd step.
Run west and teleport >LU, and Chip will arrive at four red keys. Retreat >RL to reach their locks, steal the three yellow keys from the pink balls, and move to the single yellow lock to the north to collect a block and move it into the teleport. Wait  and follow it to the red key corridor, which produces a secret route to the top. It may have been that the intention was to play the block RD 3R, then sneak above it through the teleport and then move the block D and west, and use the other three blocks to reach the bottom section, or it may have been intentional.
Move through the tank maze to the right, take the chip and green key, wait  and take the yellow keys, and retreat back out to the pink balls on the left. Climb the east wall: 3U  4U for two keys; in the southwest is a blue key under a block, which can only be taken from the southwest corner. Run 2D 4L 2D 2L and then collect it, then run across the extreme west, through the two locks on the left, to a teeth's lair. Using this odd step route, dart 3U 9R 2U into a blue wall maze and 2R 3D R 2D 2R U out of it.
To collect the five chips from the teeth, Chip has to walk to the right and separate them, so he can collect them from right to left. Walk to the far right column, then 2L DU 2L  3L to collect all the chips. Note that the DU move is used instead of  because this moves the block D, allowing Chip to walk back through the gravel to the northeast quicker. Open all the locks on the far right side (no further keys are required), then move across the extreme right and zigzag through the chips downwards to pass into the socket. Now comes the hard part!
Fit through the next three toggle walls, then turn to the south and move west. Chip should get to the fourth toggle wall at about 518.6; at the end are fire boots, which should be collected by about 515.5, and Chip should be able to go back to toggle wall 4 at about 512 or 510. Chip should escape entirely at about 509.0, and should reach [24, 11] at 508.0 or earlier. 508.2 is optimum, but 508.0 will allow Chip to pass the tank with one move less to work with in the far west section, with a slightly lower chance of reaching the bold.
At this point, distinctions should be made between the four different main routes through this level. The currently directed route is the 481 route, which can be seen at the public TWS; the AVI contains a route to 477, which is slightly behind the route for 479. The reason why the AVI remains at 477 is because it is much harder to perform the route in MS: noticably different strategies would have to be used based on events occurring within tenths of seconds. In all routes except the 481, do not wait for the tank after taking the green key; the toggle wall pattern is slightly different for the 481. Also, in the 479 route, hit one extra button in the  wait. In the 480 route, do not perform this, and come to the gravel at 506.8. More on this route will be seen later.
These many separate routes are a result of a laboratory struggle to maximize the efficiency of moving through each toggle wall at the correct intervals, as directed by the numerous random force floors, by subtly changing the polyrhythm of green buttons in places such as the tank ladder and the southwest area. Andrew Bennett began this, boring the previous record of 476 out to 477, 479, and 480 by using both this and several overlooked timesavers in non-random sections. Eventually, John Lewis took this one step further. The reason that the Melinda time is currently unknown is because of the changes to the non-random areas; the calculation is best left to a supercomputer or a deity to figure out. Andrew still has the 480 route on TWS; as the 481 route overwrit the 480 in the public TWS, the best way to get the 480 route is to ask Andrew directly.
Now, go back to the block on the gravel and move it D, meanwhile listening to the bouncing tank to the left; when the blue wall was removed, the tank will now bounce like a pink ball would in this situation. It takes 6 moves for Chip to hold the brown button down, and if a 6-move wait would lessen the wait for the tank, do it now; otherwise, deal with the button later. What to do depends on the current state of the level. For 481 and 477, Chip should go to the button, and for 480 and 479 Chip should leave it.
Sneak past the tank, turn to the north and open the first wall under the fire, then move through these floors and turn down to collect the suction boots. The current 481 route was an almost completely perfect run to the suction boots; further improvements could be made if this were perfect, but there's already been enough luck to hope for that. The chance of this area being perfect is 1/256.
Now, come back out past the tank, then hit the green button one extra time, hold the brown button down if you left it behind, and follow back through the force floor area and through the top two toggle walls, which will hold Chip up noticably less than if he didn't touch the button. In the 480 route, the final two toggle walls do not hold Chip up; further tweaking to the 481 route, where they do, may lead to a 482 route in the future. This still-unfinished struggle has made Keep Trying one of the most famous random levels in Chip's Challenge history, ranking with Blobnet in the scope of strategy usable to combat random elements. If some other levels are equivalent to War in cards, Keep Trying is equal to Spider.
Unsolvability in Lynx
As if the random force floors are not troublesome enough in MS, they also render Keep Trying unsolvable in Lynx. In Lynx, there is no randomness involved in traversing the sections with these cyclically multidirectional force floors, so any significant movement comes from overriding them appropriately. However, overrides are not possible twice in a row, nor in the exact opposite direction that the floor is trying to force upon Chip. As a result, the corridor leading to the suction Suction boots is inaccessible. If Chip is pushed from [9,6] to [8,6] involuntarily, the floor will next try to force him north, so he is not able to override to the south. If Chip overrides the floor at [9,6] westward onto [8,6] the next direction must be forced, but for this to happen southward the override must have been against an eastward force, which again is not possible.
A fix for this problem is to change the westward force floors at [8,5] and [8,7] into random force floors. This allows for the needed overrides. Alternatively, you could add some element, such as a block or monster, somewhere else in the level that could affect the force floor cycle while Chip is retrieving the boots. There is room for such a contraption in the south-east corner of the map, if you are willing to change the aesthetics there.
WalkthroughCCLP2 level 140 solution - 477 seconds(02:08)
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