User:Wongsz

Wongsz spin
Wong sz spin

A 2 bag SZ spin triple opener into TSD, this is also a mid-game triple double pattern.

First bag has a 100% build rate if J can be placed before I (L mirrored) and with 180 spins. Some bags with an early T and I may not be possible. Depending on piece order you may have to Z spin prematurely.

This opener is best suited for all-spin but still has t-spin continuations. The general shape it leaves is good for free-style all-spin.

Castletop

 * This is the main variation of Wongsz spin. If the T and I are placed early, one can begin stacking the 2nd bag before S/Z spinning if required for piece order or to better time their attack. Since this is a 2 bag opener if attempting trinity stacking it may be wise to use the s-spin triple to cancel as much garbage as possible.

Imperial cross
Best 2nd bag continuation- stacks shown are optimised to continue with freestyle trinity stacking (examples shown, continuation is not necessarily recommended). The J piece can always 180 spin into place and the Imperial cross S overhang can always be made. In order to stack the trinity It's best to use the next O piece on either side of the well to allow S/Z overhangs.
 * S overhang (O is saved)


 * O overhang (S is saved)


 * If O comes early next bag and cannot be placed optimally, one can create the O save left stack. if O is saved and you now have 2 O pieces you can create a different stack. (followed by an example trinity). If L comes before Z in this double O stack you can place it to the right, the left trinity overhang depends on your bag, example shown.

Trinity
Trinity stacking is less likely without the imperial cross but can be achieved from both overhangs. More consistently with the O overhang to place S first. If you can achieve the left stack trinity is usually possible if T does not come early. There are other ways of stacking but this is the most common. This setup is not recommended as completing the first trinity has low chances.


 * The STSD shape is also good for all spin as it allows an S/Z and J/L spin

Flat top
This variation has slightly more dependencies but offers stacks when Castletop does not work.

If possible it's generally better to use the T from the first bag to help stack the overhang first. It can be made in 4 ways:

All-spin fin
This is best used in all-spin as the initial Z spin single will provide b2b for the t-spin fin. This works most with the flat top first two diagrams if I comes early in the 2nd bag. The overhang for the fin can be made with either L or J.

Other options include building a fractal, this results in a high stack. If T comes late the fractal can be amended with a J/L spin.

This can also be used in castletop with an early I if T is in hold or late. These are all the possible stacks (some switch the L/J)

TSD donation
This continuation has a 100% build rate - the J O L stack can be vertically flipped depending on the bag, the third bag can also be built before initiating the S/Z spin triple potentially allowing for a double triple combo or a quicker burst of lines sent. This means your Z/S-spin triple will receive b2b bonus instead, sending more clean so it may not be advised.

One can make a TSD or produce an STSD after a TSS and O skim, (there are also other less optimal skims-not included), the TSD is recommended: