How Did I Complete This IMPOSSIBLE Tetris Challenge!?!?

[@fractal161]

Thanks for all of the support so far! Now that it's been a couple of weeks, here's a general update on the state of, err, checkerboard related discourse. First, a *bunch* of people have also completed the challenge. The ones who uploaded their runs to youtube are in the links below, but others that I can think of off the top of my head are hana, HydrantDude, and meme. - triskai: kzbin.info/www/bejne/n5DFkoF3iLl1i5Y - xeno: kzbin.info/www/bejne/iZ2mkJ2Bl8qjY68 Special shoutouts to meme for clearing this height from a level *5* start and to Hydrant for holding the efficiency record with 101 lines! Second, I've actually completed another checkerboard type: 29-3. It's a very different challenge that tests rolling speed and consistency like no other mode, and I personally found it more difficult. Currently I'm the only victor, but that could change at any moment. I'd appreciate it if you could check out the video here! kzbin.info/www/bejne/q4DZqmBpgZimhbs

[@cantsu]

[@kyokajiro1808]

what was your worst choke when grinding for this?

[@pojuh645]

Bro, it’s just rng! Go learn something that involves the necessity of skill.

[@Jesusisreal-k6h]

Nice job and also good luck on trying to get the rebirth 👍

[@celestialTangle]

*hits level 3* "that's so fast"

[@justblue425]

for that height, it is so fast

[@7venxce]

lmao right, and u can also sense his nervousness even though he's already halfway through the board he still sometimes stop pressing down

[@LucianDevine]

@@justblue425 Oh for sure! It's still kind of funny to hear when it's going so comparatively slow though.

[@jdguglielmetti77]

Also fractal: achieves colors at level 137

[@maxhaibara8828]

Everyone is rolling at lvl 29, while fractal os rolling at lvl 1. This is peak Classic Tetris!

[@BlazeIsEpic]

I bet he could have done the whole thing with DAS lol

[@LucianDevine]

Gotta keep those muscles loose for when you need them if you need them!

[@sawyermerkle8835]

level 0*

[@BackwardsC]

Fractal OS moment

[@YunxiaoChu]

Lol

[@SirCat07]

"this is so fast!" - the man who got to the glitched colors in tetris, 2022

[@infrences]

He crashed the game last week too

[@elianhg2144]

⁠@@infrencesthis comment is 1 year old lol

[@theunknown4834]

@@elianhg2144 this reply is 17 hours old lol

[@elianhg2144]

@@theunknown4834 this reply is 5 hours old lol

[@felipecardope]

@@elianhg2144This reply is 2 hours old lol

[@dennisamelunxen8283]

This chessboard pattern is very interesting; basically every single dropped piece must be completely burned away before one can make any progress further down. This could actually make for some interesting competition (not starting that high of course). Of course the seed must be the same and looking at the opponent's screen must not be allowed, but then it would be interesting because the "smart" play would be more important than fast button presses... Anyway, GG!

[@naphackDT]

Compete based on fewest pieces required to clear the board, with score as a tiebreaker? Sounds fun.

[@好吧-h6k]

for a second I thought you said something

[@M4C3W1]

Sorta sounds like Tetris with a doctor Mario format, I’m into it

[@samuels1123]

Possible challenges: Standard competitive where clearing lines adds garbage to other person Get a clear field before opponent Clear all of the checkerboard

[@EliosMoonElios]

Are stupid? This Top Tier Guy spend all the game saying he was LUCKY!!! At the end he say he spend lost of too many hours in the first 6 lines ergo , a competitive event will end in minutes and the chances for one player to reach the 6th line is minimal.

[@aGameScout]

2:14 that line piece in the center was a super interesting move...I would’ve thought you’d put it all the way to the right!

[@josiahhumber4775]

I think he was going to until he saw the t in the window!

[@jonathanbarkins8480]

@@josiahhumber4775 Yeah. It was probably the best move but I would've been too afraid to do it since I don't know the topout conditions too well in this game. Shows his knowledge and ability to utilize it.

[@NoNameAtAll2]

2:11 *

[@ktmahko]

It was more optimal to use the t piece which was next

[@justblue425]

same man

[@andrewroes7942]

nearly had a heart attack seeing this recommended cause I thought you started from an empty board and built a checkerboard LOL, that'd be insane but tbf it would fit the "impossible" title lmao. Anyways, massively impressive dude good stuff.

[@punchingplayerpenguin3291]

I just did the math and stuff and testing with the block tool, but hypothetically, it could take as low as 74 pieces to actually clear out this checkerboard, taking abusing the top row glitch to the next level. you need 5 pieces to get it set up to do this trick over and over again. Then you need two squares, and throw one to the far left and far right then you get an L block, and need to place it to the left so that the top long part is hanging rightward, and get a J block and mirror the L blocks positioning. This will clear the top row with only four blocks and push the stack down each time, and then, because of the placements of the L and J pieces, set it up to do the glitch again. you need to do the glitch 17 times once you get the set up from the beginning, using 68 pieces to do so, bringing the piece count up to 73, but then you need a single piece to clear the bottom row that will, by now, be a clean spot to slot something in to finish the challenge. This brings you up to a total of 74 pieces. obviously you're not gonna get luck like this in a real run, but it's a fun hypothetical what a funny challenge idea :)

[@punchingplayerpenguin3291]

okay I did a TAS thing for it, and it actually took me 70 pieces, not sure how the math got oofed up or what I did wrong, I probably calculated too many lines regarding what needs to be pushed down from the top row clears

[@tolstoj_]

"Parity" is a term used by many to describe a jagged stack. But not many really understand the actual concept behind it. The idea is to look at the playfield (matrix) as a checkerboard with black and white checkers*. You basically count the minos of your stack that occupy black checkers and subtract the ones on white checkers. If the resulting number is not 0, you have "parity issues" that can accumulate over time. The T-piece is the only piece that does not fall on 2 black and 2 white checkers, which means that every time a T-piece is introduced, the stack parity is shifted in either way, depending on where you place it. This results in the parity value getting closer to 0 (better stack) or drifting away from it (worse stack). With this in mind, it becomes apparent that solving the checkerboard pattern (aka. parity nightmare) is a pretty challenging task. -*2 types of checkers build pairs, hence the term parity... I think-

[@phonyfelony3935]

do a height 9. :D

[@Snake_In_The_Box]

So can parity also change when you clean a single row as the stack on top falls down？

[@lilysowden4035]

it can and that's the only other way to alter parity - when an odd number of minos are above a line clear

[@canaDavid1]

Parity also changes when a line drops after a line clears below it, and when clearing the last line

[@EebstertheGreat]

The etymology of "parity" isn't pairs of black and white but just the idea of evenness or oddness. The "parity" of a whole number is either even or odd depending on whether or not it is divisible by 2, sometimes represented with 0 and 1. But by analogy, "parity" has other meanings too. For instance, the parity of a permutation is either "even" or "odd" depending on the number of transpositions. The parity of a cell in a Tetris matrix, then, is either 1 or -1 (in a checkerboard pattern). So the "parity" of a whole board is the sum of the parities of all the occupied cells. This isn't really a standard use of "parity," but it is derived from more standard uses.

[@toshdefroge6541]

Man's the definitive meaning of "Waking up to set a new world record"

[@LucianDevine]

Was it a world first too

[@SamiTheAnxiousBean]

As someone that barely plays tetris and doesn't know much about it this was EXTREMELY impressive and fun to watch was rooting for you the whole way, Great job dude

[@LucianDevine]

IKR? And you could cut that tension with a knife!

[@stevemelo]

Ok now do a level 29 start 😏

[@Dravenick]

They said "So fast", so try asking someone else that.

[@slidenaway]

kzbin.info/www/bejne/q4DZqmBpgZimhbs&ab_channel=fractal161

[@rhettzkie]

You sadistic duck.

[@lilpinto6099]

No

[@mr.lowquality8234]

You do it

[@Swaggely]

I don’t even follow Tetris at all but this was so intense my heart was racing lmao

[@chrislaw4189]

How did you find this then?

[@Swaggely]

@@chrislaw4189 r/speedrun

[@jahjoeka]

I think that's ur high blood pressure.

[@JosueDeerFox]

@@chrislaw4189 recommendations

[@Dargonhuman]

Dude, between the impressive dig out during your kill screen run and this, you're becoming the "dig master" of Tetris. We're going to have to start calling you Dig Fractal, cousin to Dig Dug.

[@Bisqwit]

Nice work with the music selections!

[@rjc4370]

Congrats man! Not many can achieve this! Way to push through and make it happen, koodos!

[@WannabeMarysue]

That bad luck right in the beginning was so intense! Cool to see you pulled it off!

[@bostonrusher597]

Dev 1: so we found a glitch where it you clear the top row, stuff goes down a bit uh should we fix that Dev 2: nah like anyone's ever gonna find that out (Years later) (Dev 1 watching this) Dev 1: goddamn told him

[@rac1equalsbestgame853]

The glitch was probably unfixable because fixing it could potentially break other parts of the game. The game is better for having that glitch in anyways in the first place than withouth it, this video is an example

[@laytonjr6601]

That's assuming the devs found the glitch. Doing a line at the top of the screen is not an easy task

[@darkr.o.b.2179]

Impressive, this should be a speedrun category! :D

[@antonselivanov7873]

I'm not a big Tetris fan, but this play made me feel a huge suspense. Congrats on winning!

[@iputmilkbeforethecereal]

Fractal: is one of the top tetris players being able to survive very deep into level 29 (killscreen) Also fractal after having reached level 3: that's so fast

[@franciscaruso751]

Watching this made my adrenaline go up and nervous. Amazing 🤩

[@BMB]

great music choice, nice to see a fellow Excursions fan in the wild :P

[@cass12201]

i dont even play or watch tetris, but this just looks insane! props to you man.

[@sampsqwantch4612]

i randomly found my way into the tetris community yesterday and i just got recommended this. pretty cool stuff! good playing btw lol thats some big brain stuff my guy 😎 subscribed

[@Buggaton]

That's insane. You're amazing

[@LimpPickle.]

Very cool to see man. Congrats!! I’m impressed!

[@MrGrantGregory]

Thats insane mate well done!

[@WLivi]

I'm late to the party, and there's clearly been other feats since then, but even so that was quite impressive; nice work :)

[@gunsngaming3771]

This should have far more likes than what it does. Nice job! Skill far beyond anything I could accomplish.

[@hrhbucket4268]

That was insane ! Well done. Serious Kudos points awarded.

GGs I think I have a challenge to grind

[@saschasash]

Great Video! Thank you!!!

[@TheFantasticWarrior]

As a modern tetris player the decisions, skims, and plays you make amaze me in the situation that you can't hold and with only 1 preview, great job!

[@yoursensei7693]

Felt so good to see you beat it! Good job

[@Ialliac]

I love that you're rolling on lvl 0

[@KoltPenny]

Actually this is not a bug, it's made that way so when you do discover it, you get that sense of hope.

[@theconsolekiller7113]

Incredible playing. Very intense at the end

[@rac1equalsbestgame853]

I never thought a Tetris game would make my heart race like this

[@d3structi]

(Laughs in TGM)

[@QDogg]

Good shit bro, you had me captivated!

[@psychotheunsane7285]

"Never say something is impossible, unless you want someone to prove you wrong."

[@memesky1014]

Sheeeeeeesh really nice well played bro

[@vaughnjansen5224]

Extreme respect, this was a good watch, well done 👏

[@MrBrain4]

That was really intense. Great job!

[@sandycoin]

WOOOOO EXCURSIONS I LOVE THAT ALBUM SO MUCH

[@jalen8r]

That was the most stressful yet most satisfying Tetris game I’ve ever watched good job Oml edge of the seat

[@ryanmcquinn]

That was epic! Great job!

[@tommj4365]

This felt like the first time I saw Intersteller... except the ending here was more satisfying

[@QueenBoo919]

This was a very cool watch!! Good job! Yoooooo

[@hauntedsunsets]

this was so incredibly impressive to watch and just fascinsting

[@jglf]

I'm not sure why this was in my recommendations given I don't really watch tetris, but this looks insane, good shit

[@DOC_951]

Amazing at 10:20 he gets so confident and starts slamming pieces down

[@faq_is_love]

Mad respect for those who play classic tetris at this day and age.

[@Yodakaycool]

Amazing stamina and luck and patience. Well earned. Fun to watch with u

[@ZachaPrecision208]

No idea how tf I got here but I’ll sub anyways. That looked brutal. Good work. I’ll be back.

[@aliceweirdopants4297]

most engaging tetris gameplay ive ever seen

[@lovieuru]

Godlike, like witnessing two shooting stars collide

[@L4DGamers]

Next will be who can do it in less lines. Make the speedrun category!!!! and here is our WR holder & only one to complete it. GG

[@redcreeper7265]

Congrats, now you have a world record so proud to see my guy get a world record

[@utopes]

This looks like the type of guy that can beat Tetris :>

[@Jeamfry]

Now let's start a timed leaderboard, let the races begin

[@WieBitte69]

You are pretty good at this. If you keep practicing, I bet, you will one day reach the true kill screen

[@desired2361]

not sure if this is a joke or not

[@JasonGaudet01]

Awesome... That was Mind Blowing

[@Ezraph2001]

This is fucking satisfying to watch. Good job.

[@Jesse-ns3xj]

You know its hard when fractal says level 3 speeds are fast

[@chrisvainio]

Loved it, used to do level 20 runs on Dr Mario (highest you can start), closest we had. Had one buddy that could keep up. Level 25 is a monster.

[@chrisvainio]

Wish I had hardware to try this on. I think I would love/hate this grind. Loved watching this.

[@Fang_Sway]

Great job man.

[@mikemasterson9694]

awesome job bud!

[@twistedturk5708]

Based excursions btw

[@meander281]

Congratulations!

[@daniilde6801]

*Great achievement, Fractal is the best!*

[@spacenoodle8207]

This guy is surprisingly nervous for someone so good at the game

[@turlupouet5364]

That's impressive man

[@JaldaboathIrghen]

This was beautiful

[@Laika_in_Space]

Well done!

[@SaskiaSketches]

insanely impressive!!!

[@Verlisify]

captivating

[@nicholaelley8329]

Hi

[@featureboxx]

the longer you play the easier it gets 😊

[@hongkonger885]

"Now I can fill in some holes-" Fractal, 2022

[@dennishill44]

A thing of beauty

[@scheimong]

Now you have cleared the checkerboard, the question becomes, can you build the checkerboard?

[@A_pot_that_cant_game]

It’s sadly impossible due to the random pieces

[@darrenlo9802]

This is only possible if you’re a TAS

[@Zaiikai]

that was frickin beautifulll XD

[@DMETS519]

I would not know where to efficiently put the block pieces. That would be my undoing.

[@youtubecomments2740]

7:33 oof, needed to put the J in column 3 and the L in column 7

[@brickinapresent]

i like how ur still rolling

[@fareedsheriff3918]

ILY, Fractal!!!

[@lool8421]

takes a lot of skill, but more importantly... a crap ton of dedication until you get a good RNG

[@josephdigiorgio9392]

all that work and it says NICE!

[@jrko0]

Dang it's just cool to watch

[@Benw8888]

cool vid :) this proves fractals are better than checkerboard patterns

[@4deemi]

Im watching a grown man playing tetris and im still happy

[@cuberman5948]

Fun fact: the usual line amount tetris crashes at is between V12 (3112) and W00 (4000)

[@Westernhospitality]

Well done Sir

[@tigheklory]

Great job!!!

[@SundayTetris]

145 lines to downstack 18L checkboard garbage is pretty impressive for me although I'm a modern tetris player

[@okiadventures1213]

Gj man !

[@Whoiskimb]

dude looks like he went super saiyan when he decided to press the down button

[@MegaMonkeVr]

Damn didn’t expect fractal to struggle with level 0 😂😂😂😂

[@maxwellthesillycat]

let's see how you take a shot at it

[@MegaMonkeVr]

@@maxwellthesillycat umm sure it can’t be that hard

[@MegaMonkeVr]

I retract my statement this is impossible this is the best thing I’ve ever seen

[@SawGuy249]

Well done.

[@M8Oktoberfest]

Conglaturation