You all thought the 1 hour run was insane and no one should have the patience to beat that, but one man decided to test this and beat my record with a 1:21:30:663 run (see pinned comment in previous video). This is the wr retake and also the proof that a 2 hour stall is possible.
EDIT: this got beaten by rainwing with a time of 2:17:16:550. The wr retake will happen, expect new video soon!



Behind this run, there's actually a lot of details and ways to prevent pieces from locking temporarily.



Keeping stack as low as possible allows piece to fall further into the board and therefore gains time. Having said that, sometimes uneven board states favour certain pieces, as mentioned later in this description.

It's totally needed to hold every piece to gain time from stalling double the amount of pieces. That also means you need to know in advance how to stack your field, taking also into account the previous point.

Also knowing how to use the rotations is key, as it sometimes saves seconds per piece due to it having more falling time.

As for the stall itself, there's 2 mechanics that are completely essential, which are the wallbug and the imput rule at a certain height. These will be developed after a brief description piece by piece.

The wallbug is a mechanic that allows for the piece to actually "float" if you do certain rotations on a side wall (no need to be the board wall, it can be a wall made by actual pieces). It works for 31 rotation imputs from the spawn of the piece, and resets when holding or placing a piece.

The 15-imput rule is the way in which TETR.IO avoids the piece to stay on the board infinitely. It mainly means in case you move around or rotate the piece, it will lock in a given row in the 15th imput. If after the 15th imput piece is floating it stays in its lock delay state until an imput is done in a different row, or locks if it comes back to the same row. If piece does not rotate or move within 30 frames (around 0.5 seconds) it locks.

In the case of the O piece, there's no wallbug possibility, and best case scenario is a jagged up board (staircase) where the 15-imput rule can be exploited at its best.

In the case of the L/J/T piece, the wallbug is doable with alternating rotations or spamming 180 spins. Flat boards allow for a long stall as alternating rotations makes piece fall 1 row every 2 rotations. Staircase stall is also possible with these pieces.

As for S/Z pieces, wallbug is doable with ccw-cw rotations, IN THIS ORDER. Both staircase and flat boards give the same result per row with 180 spins.

S/Z and L/J have cases where it's possible to stall a piece during 31 rotations, but this won't be explained as it's a rare theme.

I piece is the one piece with most stalling potential, as it does have wallbug with almost every rotation and alternate rotating can make piece fall 2 rows every 2 rotations. It also allows for staircase stalling with 180 spins.

This run is not optimal, it does have some mistakes and suboptimal stalling that can be refined. A time of 2:30 hours should be doable with near-perfection.

свернуть