SingleYou

SingleYou, or Single Double Perfect Clear (SDPC), is an opener that starts with a T-Spin Single resulting in a 3-wide well. It is notable for having few dependencies (O before S, Z, or T) and many reliable continuations.

In all continuations, the first bag is stacked like so:

The routes differ from the second bag onward.

Perfect Clear
The original continuation, invented by Yuu. The term "SDPC" usually refers to this route.

By setting up a T-Spin Double as follows, one can achieve a high chance of an 8-line Perfect Clear.

The two main solutions are shown below. Together, these provide a 75% solve chance, with a 52% chance of a T-Spin Single or Double.

The remaining solutions are shown below. With these, the solve chance increases to 97%, with a 55% chance of a T-Spin Single or Double.

Link to all solutions: Fumen

Late J Tuck
If the J piece is late, but the Z isn't placed yet, you can avoid a mid-air tuck with a 180 rotation. This can be useful if you have fast soft drop.

Alternate O Placement
You can also place the O piece on the other side:

This allows for an increased Tetris chance, as well as an increased solve rate overall.

The solve chance for this setup is 98.5%, with 72% resulting in a T-Spin. There are 8 solutions where pieces are not split into 2 halves and they have the best chance of working: One of them will work for 88.5% of all third bags whereas 66% yield a T-Spin as well.

Mechanical TSD v2
The second bag is stacked as in the.

From here, Mechanical TSD v2 can be stacked on top.

Once sufficient height is achieved, the bottom T-Spin Single can be upgraded to a T-Spin Double.

SDPC Spin
Invented by Ecchou. This sends the same attack as Stickspin, but is simpler to build.

Third Bag
There are two ways to stack the third bag. The first is always possible, but the second results in a flatter stack.

If the first build is used, the center area must be filled in to complete the T-Spin Double. This can be done freestyle or using the STMB Cave continuation below.

STMB Cave
Created by stickmancomic. This requires the first build to be taken for the third bag.

For the first picture (fourth bag), L must come before J or S.

Extension
Builds a 6-3 stack, as well as pressuring the opponent with T-Spin Singles. This is especially powerful in games like TETR.IO which reward Back-to-Back.

Second Bag
This can always be built, though you might need to wait for gravity if the O piece arrives late.

Third Bag
You can then build SingleYou again on top of the residue.

This is almost always buildable, though you might need to skim if the O arrives late.

5-Bag Loop
This loop is found by Winterfrost and HDChung.

Up to second bag is same as the normal Singleyou. However, it results in 2 T-Spin Singles, a Tetris usually, and 100% Perfect Clear instead of Perfect Clear in the thrid bag directly, without need of using DPC for a loop. Therefore, this continuation is especially useful in games where B2B chaining is rewarded such as TETR.IO.

This continuation is optimal in versions where 180° spin is possible, because of piece sequence dependencies.

Third Bag
This is possible when J comes earlier than T and L comes.

Fourth Bag
This is always possible to build when 180° spin is allowed. Unless, J needs to come before S.

Fifth Bag
100% PC chance with 23 minimal solutions. 3 solutions with highest chances (57.8%, 51.7%, and 50.4%) are listed below. These three can be used to achieve Perfect Clear most of the time because each stands for early J and L, early T and late J and L, and late T.

The rest of solutions are [https://harddrop.com/fumen/?v115@LgRpg0BtywB8Rpg0Q4BtwwD8h0R4glG8ilH8Q4I8wh?I8whI8whI8whE8JeAgWaA1CgRBFbcRAyv78Aw3CwBFb8KCM?tzPCvOBAALgRpBth0R4B8RpwwBtR4D8ywg0glG8ilH8g0I8?whI8whI8whI8whE8JeAAPaA15HOBFbcRAyv78Aw3CwBFb8K?Cs+jFDv/AAALgilywR4B8glRph0R4D8Rpg0wwAtG8g0BtH8?AtI8whI8whI8whI8whE8JeAAPaAV4/DBFbcRAyv78Aw3CwB?Fb8KC6vytCsOBAALgRpg0ilR4B8Rpg0BtR4D8h0glBtG8yw?H8wwI8whI8whI8whI8whE8JeAAPaA0FoABFbcRAyv78Aw3C?wBFb8KC0HkPCvCBAALgilh0ywB8glRpg0R4wwD8RpR4AtG8?g0BtH8AtI8whI8whI8whI8whE8JeAAPaAU+/DBFbcRAyv78?Aw3CwBFb8KCa9aPC0CBAALgRphlh0R4B8Rpwwglg0R4D8yw?g0AtG8glBtH8AtI8whI8whI8whI8whE8JeAAPaA08nABFbc?RAyv78Aw3CwBFb8KC6+jPCMHBAALgilywR4B8glRpBtR4D8?Rpg0BtG8i0H8wwI8whI8whI8whI8whE8JeAAPaAU735AFbc?RAyv78Aw3CwBFb8KCqHztCsOBAALgilBtywB8glRpQ4Btww?D8Rpi0G8R4g0H8Q4I8whI8whI8whI8whE8JeAAPaATE4UBF?bcRAyv78Aw3CwBFb8KCK3jFD0CBAALgi0ywR4B8Btg0RpR4?D8BtRpglG8ilH8wwI8whI8whI8whI8whE8JeAAPaATE4UBF?bcRAyv78Aw3CwBFb8KCMnLuCqOBAALgRpg0ywR4B8Rpg0Bt?R4D8h0ilG8glBtH8wwI8whI8whI8whI8whE8JeAAPaATBoA?BFbcRAyv78Aw3CwBFb8KCMtPFDvOBAALgRpBtg0ilB8RpR4?i0D8R4BtglG8ywH8wwI8whI8whI8whI8whE8JeAAPaAT+HO?BFbcRAyv78Aw3CwBFb8KCUtHgC6CBAALgQ4hlRpywB8R4gl?RpAtwwD8Q4glg0BtG8i0H8AtI8whI8whI8whI8whE8JeAAP?aAz83UBFbcRAyv78Aw3CwBFb8KCqHztCsOBAALgBtglywR4?B8ilh0R4D8Btg0RpG8g0RpH8wwI8whI8whI8whI8whE8JeA?APaAyC45AFbcRAyv78Aw3CwBFb8KCvvTWC6OBAALgRpR4gl?ywB8RpilAtwwD8R4g0BtG8i0H8AtI8whI8whI8whI8whE8J?eAAPaAyC45AFbcRAyv78Aw3CwBFb8KCqXMgCUNBAALgg0Rp?ilR4B8i0BtR4D8RpglBtG8ywH8wwI8whI8whI8whI8whE8J?eAAPaAS4vKBFbcRAyv78Aw3CwBFb8KC0HkPCvCBAALgBtgl?i0R4B8ilRpR4D8BtRpg0G8ywH8wwI8whI8whI8whI8whE8J?eAAPaAS4vKBFbcRAyv78Aw3CwBFb8KCU3TWC6/AAALgRpR4?g0ilB8RpBti0D8R4BtglG8ywH8wwI8whI8whI8whI8whE8J?eAAPaAS4P9AFbcRAyv78Aw3CwBFb8KC03HgCzCBAALgRpi0?ywB8RpR4g0AtwwD8R4ilG8glBtH8AtI8whI8whI8whI8whE?8JeAAPaARBQ9AFbcRAyv78Aw3CwBFb8KCMtrgC0/AAALgil?Q4whywB8glRpR4AtwwD8Rpg0BtG8i0H8AtI8Q4I8whI8whI?8whE8JeAAPaAx/XHBFbcRAyv78Aw3CwBFbUOCa3TxCM+AAA?LgywilR4B8i0RpR4D8wwg0RpAtG8glBtH8AtI8whI8whI8w?hI8whE8JeAAPaAx/35AFbcRAyv78Aw3CwBFb8KCa3jPC0CB?AALgi0ilR4B8ywRpR4D8wwg0RpAtG8glBtH8AtI8whI8whI?8whI8whE8JeAAPaAx/35AFbcRAyv78Aw3CwBFb8KCa3TxCq?CBAALgRpR4whywB8Rphlh0wwD8R4glg0AtG8glBtH8AtI8g?0I8whI8whI8whE8JeAAPZAVFsRASo78A1no2AlsCSAS4iWC?KH+tCpAAAALgRpQ4hlywB8RpR4h0wwD8zhAtG8Q4BtH8AtI?8g0I8g0I8glI8glE8JeAAPZAUVlRASo78A1no2AlsCSAS4a?MCzvKxCsAAAA here].