Mr. T-Spin's STD

This is an opening created by player Mr. T-Spin. STD stands for Single Triple Double which notes how many lines are cleared by the corresponding T-Spins. It is efficient in the sense that it does not waste any T's, the rate of success is extremely high, and that it starts the B2B early. It is also a good way to counter Center 4-Wide openings.

Mr. T-Spin's Single-Triple-Double

Mirrored Alternative to Mr T-Spin's STD

In the event that you get a late J, consider this:

OSZ in Second Bag

The O, S and Z-pieces in the second bag can always be stacked in a way that a T-Spin Triple is prepared at the end of the bag. The order of the pieces in the second bag does not matter at all - the stack will always look the same at the beginning of the third bag.

Perfect Clear chance

If J-piece comes late in the second bag, then the positions of O-piece and J-piece can be swapped that means the O-piece is used to build the overhang. This results in a small Perfect Clear chance after 8 cleared lines (3 bags) whereas only a T-Spin Single is made in the third bag.

Here are some further patterns to achieve the Perfect Clear. One of those 6 patterns will be applicable for 39.3 % of all third bags.

Nosomi Continuation

Like previously mentioned, the stack will always look the same after 2 placed bags. With this continuation discovered by the player Nosomi, even the third bag can be placed in the same way, whereas a T-Spin Single is made in the third bag instead of the usual T-Spin Double. The Z-piece stays on hold until the end of the bag and is then used to prepare a DT Cannon. Altogether, the following T-Spins are made in the first 5 bags:
Single -> Triple -> Single -> Double -> Triple.

Disadvantage of the technique is that you may have to softdrop the O-piece during the third bag; or make a tricky twist to get the T-piece in place, if the S-piece was already placed: First you rotate by 180 degrees, then you softdrop a row, rotate in an arbitrary direction (the T piece will be kicked) and rotate back in the other direction.

Here are some alternative ways how to place the fourth bag:

STSD

First Setup

You can also do an STSD with a 58.3% chance to end with a Perfect Clear after 14 lines.

Here are all solutions. The first 3 may result with a T-Spin Double beforehand.

You can also stack the fourth bag this way.

Here is a similar setup. However, there is one more dependency: L before O.

Second Setup

There is also another way to set up an STSD which could end with up to 100% chance of getting a 14th row Perfect Clear. This setup was discovered by the player CaptainCream.

In the third bag, the S, J, L and I on the 3rd bag can be stacked in one of the following three ways:

If L comes before O on the 4th bag, making the first 4th bag pattern is possible. This pattern has 93.23% chance of Perfect Clear. If T comes first on the 5th bag, the chance increases to 100%. There is also a slight chance that T-Spin Double, Tetris and Perfect Clear could be done in the same bag.

16 solutions; 7 are shown (Both T-Spin Double and Tetris could be done on the second Perfect Clear pattern). All solutions.

If O comes before L on the 4th bag, making the second 4th bag pattern is possible. This pattern has 76.51% chance of Perfect Clear. All solutions.

8 solutions; 4 shown

If I comes very late and both L and O comes early, making the third 4th bag pattern is possible. This pattern was found by a Japanese Person. This pattern has a 50.95% chance of Perfect Clear. All Solutions

2 solutions

Mr T-Spin Analogon

Left and right part swapped, so the T-Spin Triple overhang points towards the wall. This opening has the same dependencies as Mr. T-Spin's STD in the first bag (must place O before I and Z before L), and in the second bag O, S and Z must be stacked in the same way. After the execution, the only real difference is that the T-Spin Triple overhang points towards the closer wall which will result in different leftovers.

If I piece comes last in first bag, one can also drop it on the wall which allows to stack the T-Spin Triple overhang differently.

Here are some ways how the second bag can be stacked, if the I piece is placed in its usual spot. None of them result in a Perfect Clear chance.

To prevent that vertical L-piece overhang, it is sometimes possible to keep the L piece on hold and use J-piece from the third bag in its place.

See also

• Hachispin - an opener that also starts with a T-Spin Single and a T-Spin Triple
• Albatross Special - a setup that can result in a T-Spin Double Triple Double
• Mini Triple Double - openers that start with a T-Spin Mini instead of a T-Spin Single
• Single Triple Double - more openers that also start with a T-Spin Single
• DoubleYou - an opener which may also result in an STD

External Links

• Pokemino: What do you think about my STD?
• some fumen links in a Japanese wiki page, some of which includes Mr. T-Spin's STD