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|{{pfstart}} | |||
{{pfrow| | | | | | | | | | }} | |||
{{pfrow| | | |L|L| | | | | }} | |||
{{pfrow| | | | |L| | | | | }} | |||
{{pfrow| | | |Z|L|S|S| | |J}} | |||
{{pfrow|O|O|Z|Z|S|S|P|P|P|J}} | |||
{{pfrow|O|O|Z|I|I|I|I|P|J|J}} | |||
{{pfend}} | |||
Normal Setup | |||
|{{pfstart}} | |{{pfstart}} | ||
{{pfrow| | | | | | | | | | }} | {{pfrow| | | | | | | | | | }} | ||
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Mirrored Setup | Mirrored Setup | ||
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Revision as of 09:54, 25 December 2019
Perfect DT (Perfect Double Triple / パーフェクト DT) is a setup invented by a Japanese player named Yuu. It resembles a TKI 3 Opening but with the L placed upright on top of S which makes it looks kind of like a "wing". Usually made to achieve a T-Spin Double which could then be continued with T-Spin Triple without wasting a single T and usually ends with 8th row Perfect Clear. This is one of the only discovered setups that could achieve 8th row Perfect Clear without wasting a single T (other setups like Albatross Special and Pelican could only do Perfect Clear after 10 cleared lines). This setup could be made with an early I and S have to come before L. Perfect Clear after 14 lines is also possible.
First Bag
Normal Setup |
Mirrored Setup |
Second Bag
T-Spin Triple
This setup is usually continued by T-Spin Triple. Notice how JI and LO could be swapped which increases the chance to score a T-Spin Triple without wasting a single T. It uses a very unusual overhang but it works nonetheless.
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If J comes early but Z comes before I, one could still create a T-Spin Triple with S placed vertically on top of L.
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T-Spin Double
If it is impossible to make a T-Spin Triple on the second bag, one could still continue with a T-Spin Double. The chance to stack this one is 100% because O, S and Z can be stacked in any order.
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The O, S and Z pieces can be stacked in one of four ways:
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It is possible to continue the T-Spin Double with Type 1 ST Stacking. Here is an example:
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Form 1
3 Bag Perfect Clear
If you did the normal setup, then there is a 75.87% chance to do a Perfect Clear after 8 lines. 15 of the 18 solutions are shown. Refer to Tistory's page about Perfect DT for all solutions (see External Links).
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Mirrored Setup
On the other hand, if you do the mirrored setup, then there is 74.33% chance that it could end with 8th row Perfect Clear. The probability is lower because fewer I-Spins work there.
Form 1.1
If you cannot make a Perfect Clear after 8 lines, sometimes, you can achieve a PC after 14 lines. For this form, O should come before S and T.
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- 96.07%: This form is an STSD. There are two ways to stack it. Only O comes before J (first diagram). There are a few solutions where there is a T-Spin Single or Double beforehand. 21 of all 23 solutions are shown. Please refer to Tistory's page for more solutions (see External Links).
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If you cannot make a Perfect Clear, then you may transition to LST Stacking.
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For more stacks, refer to Tistory's page (see External Links).
Form 1.2
You are always able to stack your third bag like this; only the ZOS shape varies. However, there will be one hole clogged after the TSD.
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Use the fourth bag to open the hole. Some examples (the fourth example shows forecasting):
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In this form, 5-bag Perfect Clear is possible, but its efficiency is too low to memorize. Below is an example of how four bags might be used (93.57%):
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Form 2
For this form, Perfect Clear after 8 lines is impossible, so use any of the three forms below.
Form 2.1
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- 95.40%: an Imperial Cross. It is a good shape because TSD is always possible before the PC and a small number of solutions. Only S needs to come before Z and T. All four solutions are shown.
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