Uratos Double Triple Cannon

Uratos Double Triple Cannon, Uratos DT Cannon or UDT, also known as Wrench Cannon (The opener base looks like a wrench), is a variation made by Uratos of the 璃畏怖5P opener (translation not available), which includes 2 T-Spin Single followed by DT Cannon setup. The opener finishes with a stack most suitable for Back to Back chaining. However, this opener is not 100% guaranteed and is inflexible and relatively easy to mess up; thus, it is not recommended for beginners to use UDT.

Note that this page is still missing plenty of infomation.

Uratos Double Triple

1st Bag: 璃畏怖5P base

This opener is bag specific, requiring early O and I, and late T for optimal setup.

In order for it to be buildable:

• O must not come in last in the O S Z T group.
• J, L, and T must not all come in before O or I (O and/or I can be in between the three pieces):
  • If J before O and I, Z must come in before S, unless O and/or I immediately follow J (there can be at most 1 piece in between).
  • If L before O and I, S must come in before Z, unless O and/or I immediately follow L (there can be at most 1 piece in between).
• If J or L before I, you might need to I-Spin.
• If I comes in last in the I J L group and after T, it may become the Diminished UDT Cannon where you have to T-Spin without any line clears (sometimes just placing T without T-Spin at all), I-Spin, then skim the line with J or L, delaying the Back to Back chain.

I-Spin

In cases where you need to I-Spin, if the I piece is on the left side, rotate clockwise, soft drop, then rotate clockwise once more.

If the I piece is on the right side instead, rotate counterclockwise, soft drop, then rotate counterclockwise once more.

2nd and 3rd Bag

2nd Bag

The S piece might have to be placed on the O piece if it comes before the T piece.

Highland

Mountain Peak

Highland

Highland

If in the 3rd bag, S and Z are late, use the setup in the second figure, although you should be wary of misdrops.

Use the setup in the third figure for S before Z. In this setup, it is preferable to T-Spin before placing the J, if O is already placed, and O if J is already placed.

Alternatively, you can build it as following:

Jagged Peaks

Wide Peaks

3rd Bag

Finish the DT Cannon setup: SESY (Semi-symetrical) build

From Highland

From Mountain Peak

SESY residue

Alternatively, you can build it like the following. However, it may result in a different residue.

• S/Z overhang

• J/L overhang

(No name)

Bin-In

Bin-Out

For Jagged Peaks and Wide Peaks:

Bin-Out From Jagged Peaks

Bin-In From Wide Peaks

Continuations

You can use these continuations after clearing the DT Cannon. For simplicity, the following will be based on the SESY residue.

Note that by clearing the DT Cannon, you are using the T pieces from the 3rd and 4th bag

Back to Back Chaining

This continuation is mostly free style. You can start by tucking the L under the overhang or do a Mini T-Spin Single to fill the stack. Then continue stacking up and maintaining Bach to Back.

Perfect Clear

(This lacks a substantial amount of information)

So far, the easiest and most reliable setup for PC, found by Uratos, is the following:

Z>S	Slanted Slope

10 solutions have been found by hand for this setup.

Imperial Cross

From 2nd bag, you can instead build this setup and sacrifice the T-Spin Triple for Imperial Cross. However, this setup is probably riskier than other setups.

Or alternatively

• Hold I

• Hold Z

After clearing the Imperial Cross, you can continue the Back to Back chain similarly to what was mentioned above. However, since this setup uses a lot of T pieces, you will most likely be left with a 2w or 3w well in the center of the stack; thus, you can choose to combo instead.