FOUR

New DT Cannon (新DT砲)

A 5-bag TSD → TST → TSD → Tetris → PC loop based on DT Cannon, discovered by KMGZ.

New DT Cannon is not a newer version of the original DT Cannon opener. It's just a name given to this loop.

You probably won't be able to do the PC in real Tetris vs. Tetris matches. However, this loop's utility is the ability to reliably perform a donation TSD on your fourth bag with approximately an 80% chance.

Bag 1 & Bag 2

Depending on your second bag, you may need to settle with a TSS instead of a TSD like below, because the placement of Z depends on the prior placement of O.

Bag 3

You will always be able to stack your 3rd bag this way.

Bag 4 & Bag 5

You can either continue with the loop or do a perfect clear.

There are two main routes depending on whether you can place a L before placing the S (Kaidan Route) or if you can only place a J before placing the S (Anchor Set Route). The Kaidan Route is preferred.

You'll have about an 80% chance of being able to set up one of these.

Kaidan Route 1

This pattern has a 66.5% chance of achieving a perfect clear. This is the most often used pattern, and it is also the most straightforward pattern to memorize, including the perfect clear solutions.


Kaidan Route 2

This pattern has a 53.3% chance of achieving a perfect clear.


Anchor Set Route 1

This pattern has a 73% chance of achieving a perfect clear.


Anchor Set Route 2

This pattern has a 61% chance of achieving a perfect clear.


Anchor Set Route 3

This pattern has a 33% chance of achieving a perfect clear.


PC Route on Bag 4

Instead of completing the loop with bag 5, you can opt to perfect clear on bag 4. You will have a 38.4% chance to achieve it.


Doing a PC breaks the original loop because you are left with 3 leftover pieces. However, combined with another bag (7 pieces), it is possible to do another 4-height PC, which uses 10 pieces. If you do this, you will be able to re-enter the loop. See this page for some patterns that you can use.

Notes

Bag 1 and Bag 2 can also be stacked this way, depending on your opening bag.

They can be mixed and matched.


See Also / References

Refer the fumen linked in KMGZ's tweet for more follow-up examples.

Openers

🙃 Toggle Mirror
About This Website
© 2018-2021 davdav1233 and cosin307. All Rights Reserved