From Hard Drop Tetris Wiki
(expanded PC section, added pwn_by_numbers variant) |
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{{pfrow|G|Z|Z|S|S|G|G|G|G|G}} | {{pfrow|G|Z|Z|S|S|G|G|G|G|G}} | ||
{{pfrow|G|G|S|S|J|G|G|G|G|G}} | {{pfrow|G|G|S|S|J|G|G|G|G|G}} | ||
{{pfend}} | |||
|} | |||
If the second I piece is dropped adjacent to the wall with the L piece above, then there's still a small chance (19%) to make a PC. Again, the chance is the highest if T comes first in third bag (40%). However, all PC opportunities are hard to spot. It is required to clear the third line before placing the Z piece adjacent to the left wall. | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|Z|Z|O|O|I|I|I|I|S|S}} | |||
{{pfrow|G|G|O|O|L|L|L|S|S|G}} | |||
{{pfrow|G|Z|Z|T|L|G|G|G|G|G}} | |||
{{pfrow|G|G|T|T|T|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|Z|Z|L|L|L|T|T|T|S|S}} | |||
{{pfrow|G|G|I|I|I|I|T|S|S|G}} | |||
{{pfrow|G|Z|Z|O|O|G|G|G|G|G}} | |||
{{pfrow|G|G|L|O|O|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|Z|Z|O|O|L|L|L|T|T|T}} | |||
{{pfrow|G|G|O|O|I|I|I|I|T|G}} | |||
{{pfrow|G|Z|Z|S|S|G|G|G|G|G}} | |||
{{pfrow|G|G|S|S|L|G|G|G|G|G}} | |||
{{pfend}} | |||
|} | |||
If the second I piece is dropped adjacent to the wall but the second L piece is kept on hold until the T-Spin Triple is made, then the chance to make a PC is increased to 74%. Note that this number is a little theoretical though because one can't see or think that many pieces in advance. The 11 most frequent PC opportunities are shown below. Note that the first 3 pictures are similar to the builds where you drop the I piece 2 columns away from the wall. Also interestingly, all these 11 ways can be pulled off more often than the 4 ways shown above where you dropped the L piece horizontally adjacent to the right wall. | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|L|L|L|S|S|L|L}} | |||
{{pfrow|G|G|J|L|T|S|S|O|O|L}} | |||
{{pfrow|G|Z|Z|T|T|G|G|O|O|L}} | |||
{{pfrow|G|G|Z|Z|T|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|I|I|I|I|J|J|S|S|L|L}} | |||
{{pfrow|G|G|T|L|J|S|S|O|O|L}} | |||
{{pfrow|G|T|T|L|J|G|G|O|O|L}} | |||
{{pfrow|G|G|T|L|L|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|I|I|I|I|J|J|S|S|L|L}} | |||
{{pfrow|G|G|Z|Z|J|S|S|O|O|L}} | |||
{{pfrow|G|T|T|T|J|G|G|O|O|L}} | |||
{{pfrow|G|G|T|Z|Z|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|T|T|T|L|L|Z|Z|J|J|J}} | |||
{{pfrow|G|G|I|I|I|I|Z|Z|S|S}} | |||
{{pfrow|G|T|O|O|L|G|G|S|S|J}} | |||
{{pfrow|G|G|O|O|L|G|G|G|G|G}} | |||
{{pfend}} | |||
|} | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|Z|Z|S|T|T|T|I|I|I|I}} | |||
{{pfrow|G|G|S|S|T|J|J|J|O|O}} | |||
{{pfrow|G|Z|Z|S|L|G|G|J|O|O}} | |||
{{pfrow|G|G|L|L|L|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|T|T|T|S|S|Z|Z|L|L|L}} | |||
{{pfrow|G|G|I|I|I|I|Z|Z|O|O}} | |||
{{pfrow|G|T|S|S|L|G|G|L|O|O}} | |||
{{pfrow|G|G|L|L|L|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|I|I|I|I|J|J|S|S|L|L}} | |||
{{pfrow|G|G|T|T|T|S|S|O|O|L}} | |||
{{pfrow|G|Z|Z|T|J|G|G|O|O|L}} | |||
{{pfrow|G|G|Z|Z|J|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|I|I|I|I|J|J|S|S|O|O}} | |||
{{pfrow|G|G|T|T|T|S|S|L|L|L}} | |||
{{pfrow|G|Z|Z|T|J|G|G|L|O|O}} | |||
{{pfrow|G|G|Z|Z|J|G|G|G|G|G}} | |||
{{pfend}} | {{pfend}} | ||
|} | |} | ||
Line 210: | Line 300: | ||
code=m115@vhUyQYvAFLDmClcJSAVDEHBEooRBMoAVBz3/wCJHWW?CvnNPCzfLuCP+VWCT+lFDvifBAXtBspBumBZkBzlB9nQpAF?LDmClcJSAVztSAVG88AYe88A5mbMCKNUPCa9CMC0yLMC0HL?WCqAAAAToB0gBxiBOaB3cBtkBmfBEqBqlBThBvnBpoBatBX?He</fumen> | code=m115@vhUyQYvAFLDmClcJSAVDEHBEooRBMoAVBz3/wCJHWW?CvnNPCzfLuCP+VWCT+lFDvifBAXtBspBumBZkBzlB9nQpAF?LDmClcJSAVztSAVG88AYe88A5mbMCKNUPCa9CMC0yLMC0HL?WCqAAAAToB0gBxiBOaB3cBtkBmfBEqBqlBThBvnBpoBatBX?He</fumen> | ||
<BR clear=left> | <BR clear=left> | ||
== pwn_by_numbers variation == | |||
If you get an early L or J piece but no early O piece, then you can still try this variation. It's probably best to place the T piece vertically instead of upside down. With some luck you can fill the right corner with an S piece and make a T-Spin Triple at the end of second bag. | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|I| | | | |J|J| | | }} | |||
{{pfrow|I| |Z|O|O|J| | | | }} | |||
{{pfrow|I|Z|Z|O|O|J|L| |S|S}} | |||
{{pfrow|I|Z| | |L|L|L|S|S| }} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|I| | | | |J|J|P| | }} | |||
{{pfrow|I| |Z|O|O|J|P|P| | }} | |||
{{pfrow|I|Z|Z|O|O|J|L|P|S|S}} | |||
{{pfrow|I|Z| | |L|L|L|S|S| }} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|-I| | | | |-J|-J|-T| | }} | |||
{{pfrow|-I| |-Z|-O|-O|-J|-T|-T| | }} | |||
{{pfrow|-I|-Z| | |-L|-L|-L|-S|-S| }} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J| | | | | | | |I}} | |||
{{pfrow|J| | | | | |L|O|O|I}} | |||
{{pfrow|J| |Z|Z|L|L|L|O|O|I}} | |||
{{pfrow|-I| | |Z|Z|-J|-J|-T|S|I}} | |||
{{pfrow|-I| |-Z|-O|-O|-J|-T|-T|S|S}} | |||
{{pfrow|-I|-Z| | |-L|-L|-L|-S|-S|S}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J| | | | | | | |I}} | |||
{{pfrow|J| | | | | |L|O|O|I}} | |||
{{pfrow|J|P|Z|Z|L|L|L|O|O|I}} | |||
{{pfrow|-I|P|P|Z|Z|-J|-J|-T|S|I}} | |||
{{pfrow|-I|P|-Z|-O|-O|-J|-T|-T|S|S}} | |||
{{pfrow|-I|-Z| | |-L|-L|-L|-S|-S|S}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J| | | | | | | |I}} | |||
{{pfrow|J| | | | | |L|O|O|I}} | |||
{{pfrow|-I|-Z| | |-L|-L|-L|-S|-S|S}} | |||
{{pfend}} | |||
|} | |||
Note that in this variation, it's harder to follow up with a T-Spin Double (T-Spin Triple is still easy). However, if you can stack the second bag like shown above, then there's a very high chance (83%) to make a [[Perfect clear]] (PC) at the end of third bag. The chance is especially high (95%), if S piece comes first in second bag. The chances are also very high (between 88% and 89%), if you receive L or J piece first. The PC will always work, if Z and L can be used to fill the bottom rows (see picture 2). The PC will also always work, if the third bag starts with Z and J piece, although the player must be flexible where to put the J piece (either at left wall or at the bottom). The first 2 pictures show the most common ways to make a PC. | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|I|I|I|I|T|T|T}} | |||
{{pfrow|G|G|J|O|O|L|L|L|T|G}} | |||
{{pfrow|G|Z|Z|O|O|L|G|G|G|G}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|O|O|T|T|T|S|S}} | |||
{{pfrow|G|G|J|O|O|L|T|S|S|G}} | |||
{{pfrow|G|Z|Z|L|L|L|G|G|G|G}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|L|I|I|I|I|S|S}} | |||
{{pfrow|G|G|J|L|T|T|T|S|S|G}} | |||
{{pfrow|G|Z|Z|L|L|T|G|G|G|G}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|O|O|L|L|L|S|S}} | |||
{{pfrow|G|G|J|I|I|I|I|S|S|G}} | |||
{{pfrow|G|Z|Z|O|O|L|G|G|G|G}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|S|S|Z|Z|T|T|T}} | |||
{{pfrow|G|G|J|L|O|O|Z|Z|T|G}} | |||
{{pfrow|G|L|L|L|O|O|G|G|G|G}} | |||
{{pfrow|G|G|S|S|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|} | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|I|I|I|I|T|T|T}} | |||
{{pfrow|G|G|S|S|Z|L|L|L|T|G}} | |||
{{pfrow|G|S|S|Z|Z|L|G|G|G|G}} | |||
{{pfrow|G|G|J|Z|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|Z|Z|J|I|I|I|I|T|T|T}} | |||
{{pfrow|G|G|J|J|J|L|L|L|T|G}} | |||
{{pfrow|G|Z|Z|S|S|L|G|G|G|G}} | |||
{{pfrow|G|G|S|S|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|Z|Z|L|L|L|T|T|T|S|S}} | |||
{{pfrow|G|G|L|J|O|O|T|S|S|G}} | |||
{{pfrow|G|Z|Z|J|O|O|G|G|G|G}} | |||
{{pfrow|G|G|J|J|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|Z|Z|L|L|L|S|S|T|T|T}} | |||
{{pfrow|G|G|L|J|I|I|I|I|T|G}} | |||
{{pfrow|G|Z|Z|J|S|S|G|G|G|G}} | |||
{{pfrow|G|G|J|J|G|G|G|G|G|G}} | |||
{{pfend}} | |||
|} | |||
Another way to make a T-Spin Triple at the end of the second bag is shown below. The right corner is left empty, then covered by an O piece and eventually uncovered by the T-Spin Triple line clear. L piece must stay on hold through second bag. | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|I| | | | |J|J| | | }} | |||
{{pfrow|I| |Z|O|O|J| | | | }} | |||
{{pfrow|I|Z|Z|O|O|J|L| |S|S}} | |||
{{pfrow|I|Z| | |L|L|L|S|S| }} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|I| | | | |J|J|P| | }} | |||
{{pfrow|I| |Z|O|O|J|P|P| | }} | |||
{{pfrow|I|Z|Z|O|O|J|L|P|S|S}} | |||
{{pfrow|I|Z| | |L|L|L|S|S| }} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|-I| | | | |-J|-J|-T| | }} | |||
{{pfrow|-I| |-Z|-O|-O|-J|-T|-T| | }} | |||
{{pfrow|-I|-Z| | |-L|-L|-L|-S|-S| }} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J| | | | | | | | }} | |||
{{pfrow|J| | | | |S|S| | | }} | |||
{{pfrow|J| |Z|Z|S|S|I|I|I|I}} | |||
{{pfrow|-I| | |Z|Z|-J|-J|-T|O|O}} | |||
{{pfrow|-I| |-Z|-O|-O|J|-T|-T|O|O}} | |||
{{pfrow|-I|-Z| | |-L|-L|-L|-S|-S| }} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J| | | | | | | | }} | |||
{{pfrow|J| | | | |S|S| | | }} | |||
{{pfrow|J|P|Z|Z|S|S|I|I|I|I}} | |||
{{pfrow|-I|P|P|Z|Z|-J|-J|-T|O|O}} | |||
{{pfrow|-I|P|-Z|-O|-O|J|-T|-T|O|O}} | |||
{{pfrow|-I|-Z| | |-L|-L|-L|-S|-S| }} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J| | | | | | | | }} | |||
{{pfrow|J| | | | |S|S| | | }} | |||
{{pfrow|-I|-Z| | |-L|-L|-L|-S|-S| }} | |||
{{pfend}} | |||
|} | |||
If you can stack the second bag like shown above (note that the second L piece hasn't been dropped yet), then there's a 96% to make a [[Perfect clear]]. Note that this number is very theoretical though because one can't see or think that many pieces in advance. The 11 most frequent PC opportunities are shown below; there are just too many ways to show them all. | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|L|L|L|L|L|L|I}} | |||
{{pfrow|G|G|J|L|S|S|L|O|O|I}} | |||
{{pfrow|G|Z|Z|S|S|G|G|O|O|I}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|I}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|L|O|O|S|L|L|I}} | |||
{{pfrow|G|G|J|L|O|O|S|S|L|I}} | |||
{{pfrow|G|Z|Z|L|L|G|G|S|L|I}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|I}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|L|L|L|O|O|L|L}} | |||
{{pfrow|G|G|J|L|S|S|O|O|T|L}} | |||
{{pfrow|G|Z|Z|S|S|G|G|T|T|T}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|L}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|I|I|I|I|L|L|L}} | |||
{{pfrow|G|G|J|O|O|L|L|L|S|S}} | |||
{{pfrow|G|Z|Z|O|O|G|G|S|S|L}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|L}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|L|L|L|L|L|L|I}} | |||
{{pfrow|G|G|J|T|T|T|L|O|O|I}} | |||
{{pfrow|G|Z|Z|L|T|G|G|O|O|I}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|I}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|L|L|L|S|L|L|I}} | |||
{{pfrow|G|G|J|T|T|T|S|S|L|I}} | |||
{{pfrow|G|Z|Z|L|T|G|G|S|L|I}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|I}} | |||
{{pfend}} | |||
|} | |||
{| | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|T|T|T|I|I|I|I|L|L|L}} | |||
{{pfrow|G|G|J|J|J|L|L|L|S|S}} | |||
{{pfrow|G|T|O|O|J|G|G|S|S|L}} | |||
{{pfrow|G|G|O|O|G|G|G|G|G|L}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|I|I|I|I|L|L|L}} | |||
{{pfrow|G|G|J|O|O|L|L|L|T|L}} | |||
{{pfrow|G|Z|Z|O|O|G|G|T|T|T}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|L}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|O|O|L|S|L|L|I}} | |||
{{pfrow|G|G|J|L|L|L|S|S|L|I}} | |||
{{pfrow|G|Z|Z|O|O|G|G|S|L|I}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|I}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|T|T|T|O|O|L|L}} | |||
{{pfrow|G|G|J|L|L|L|O|O|S|S}} | |||
{{pfrow|G|Z|Z|L|T|G|G|S|S|L}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|L}} | |||
{{pfend}} | |||
|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow|J|J|J|L|L|L|O|O|S|S}} | |||
{{pfrow|G|G|J|T|T|T|O|O|L|L}} | |||
{{pfrow|G|Z|Z|L|T|G|G|S|S|L}} | |||
{{pfrow|G|G|Z|Z|G|G|G|G|G|L}} | |||
{{pfend}} | |||
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== See also == | == See also == |
Revision as of 17:37, 4 October 2017
Hachispin (or Hachi-Cannon) is an opener created by a Japanese player with the same name. The setup consists of a T-Spin Single followed by a T-Spin Triple and Perfect clear.
First 2 bags
The setup needs an early O piece. A T-Spin Single is made at the end of the first bag and a T-Spin Triple at the end of the second bag.
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Under circumstances, the second S piece needs to be soft-dropped. The second L, I and O pieces can be dropped in different ways. If possible, drop the second I piece 2 columns away from the wall because this gives a chance for a Perfect clear.
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Perfect Clear continuation
If the second I piece is dropped 2 columns away from the wall, then there's a high chance (69%) to make a Perfect clear (PC) at the end of the third bag (4 further cleared lines) whereas either the third I, L or J piece will stay on hold. The chance is especially high, if T piece comes first in third bag (94%), and also decent if either S, Z or O piece comes first (between 70% and 73%). The PC will always work, if Z and T can be used to fill the bottom rows (see picture 1). Same is true for T and L (see picture 2). Picture 1 shows the most common way to make a PC.
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If the second I piece is dropped adjacent to the wall with the L piece above, then there's still a small chance (19%) to make a PC. Again, the chance is the highest if T comes first in third bag (40%). However, all PC opportunities are hard to spot. It is required to clear the third line before placing the Z piece adjacent to the left wall.
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If the second I piece is dropped adjacent to the wall but the second L piece is kept on hold until the T-Spin Triple is made, then the chance to make a PC is increased to 74%. Note that this number is a little theoretical though because one can't see or think that many pieces in advance. The 11 most frequent PC opportunities are shown below. Note that the first 3 pictures are similar to the builds where you drop the I piece 2 columns away from the wall. Also interestingly, all these 11 ways can be pulled off more often than the 4 ways shown above where you dropped the L piece horizontally adjacent to the right wall.
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T-Spin continuations
There are also easy ways to make either a T-Spin Double or T-Spin Triple in the third bag. Sometimes, it is also possible to prepare an Imperial Cross.
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Examples
pwn_by_numbers variation
If you get an early L or J piece but no early O piece, then you can still try this variation. It's probably best to place the T piece vertically instead of upside down. With some luck you can fill the right corner with an S piece and make a T-Spin Triple at the end of second bag.
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Note that in this variation, it's harder to follow up with a T-Spin Double (T-Spin Triple is still easy). However, if you can stack the second bag like shown above, then there's a very high chance (83%) to make a Perfect clear (PC) at the end of third bag. The chance is especially high (95%), if S piece comes first in second bag. The chances are also very high (between 88% and 89%), if you receive L or J piece first. The PC will always work, if Z and L can be used to fill the bottom rows (see picture 2). The PC will also always work, if the third bag starts with Z and J piece, although the player must be flexible where to put the J piece (either at left wall or at the bottom). The first 2 pictures show the most common ways to make a PC.
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Another way to make a T-Spin Triple at the end of the second bag is shown below. The right corner is left empty, then covered by an O piece and eventually uncovered by the T-Spin Triple line clear. L piece must stay on hold through second bag.
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If you can stack the second bag like shown above (note that the second L piece hasn't been dropped yet), then there's a 96% to make a Perfect clear. Note that this number is very theoretical though because one can't see or think that many pieces in advance. The 11 most frequent PC opportunities are shown below; there are just too many ways to show them all.
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See also
- Mr. T-Spin's STD - an opener that also starts with a T-Spin Single and a T-Spin Triple
- Albatross Special - a similar looking opener where the location of S and Z pieces are swapped in first bag