User:Arcorann/T-Spins: Difference between revisions

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* 2 only gives minis (sideways-pointing minis) that may or may not be immobile.
* 2 only gives minis (sideways-pointing minis) that may or may not be immobile.
* 3 leads to the alternate way of the classic TSD kick (if going to d) and the only way to get upwards-pointing minis.
* 3 leads to the alternate way of the classic TSD kick (if going to d) and the only way to get upwards-pointing minis.
* 4 is the Neo MTSD kick. It's not clear if there's a legal setup for getting full 3-corner with the kick going to u (doesn't look like it).
* 4 is the Neo MTSD kick if going to d. If going to u, mini is also possible. It's not clear if there's a legal setup for getting full 3-corner with the kick going to either d or u (doesn't look like it).
* 5 is the TST kick, but only gives TSTs if starting from u. If l/r, it becomes a curious up-kick; it's not clear if one can legally reach a full 3-corner going to u using that kick though (doesn't look like it either)
* 5 is the TST kick, but only gives TSTs if starting from u; if starting from d it is the Fin TSD kick. If l/r, it becomes another up-kick similar to 4 when starting from l/r.
 
=== Analysis of Kick 4 ===
 
The main problem is getting a piece into the location where it can kick upwards into the spot that satisfies 3-corner in either full or mini.
 
==== l/r -> d ====
 
We have two hypothetical setups for this kick. Adding suitable grey points to denote the four corners, we have:
<playfield>
g g
ttt
gtg
1--
-2
</playfield>
 
{| class="wikitable"
| from u
|
<playfield>
gtg
xtt
-2
</playfield>
|
<playfield>
g-t
1ttt
-2
</playfield>
Mini only
|
<playfield>
g-g
1-t
txt
</playfield>
|
n/a
|
<playfield>
g5t
ttt
g-g
1--
-2
</playfield>
Full only
|-
|from d
|
<playfield>
g-g
xtt
t2
</playfield>
|
<playfield>
g-g
1ttt
-x
</playfield>
|
n/a
|
<playfield>
ttt
gtg
1--
-2
</playfield>
Inverse
|
<playfield>
g5g
ttt
g-t
1--5
-2
</playfield>
Mini only
|}
 
Thus, we have some new potential setups, although neither of the mini only ones can clear any lines (they can still score points though) and given their placements are thus mostly useless in practice.
 
To the other setup:
<playfield>
g g
ttt
gtg
1--2
- 3
  3
</playfield>
 
{| class="wikitable"
| from u
|
|
|
| n/a
|
|-
| from d
|
|
| n/a
|
|
|}
 
==== l/r -> u ====
 
<playfield>
gtg
ttt
2-
2--1
33-
</playfield>
 
{| class="wikitable"
| from u
|
<playfield>
g g
   
2t
2ttx
33-
</playfield>
|
<playfield>
g g
   
x-
xtt1
33-
</playfield>
|
<playfield>
g g
   
2-
2t-1
xxt
</playfield>
| n/a (no inverse!)
|
<playfield>
x g
ttt
2-
2--1
33-
</playfield>
3-corner impossible
|-
| from d
|
<playfield>
g g
   
2-
2ttx
33t
</playfield>
|
<playfield>
g g
   
2-
xtt1
3x-
</playfield>
| n/a
|
<playfield>
g g
ttt
2t
2--1
33-
</playfield>
 
|
<playfield>
g g
ttt
x-
2--1
33-
</playfield>
|}
 
=== Analysis of Kick 5 ===
 
 
==== l/r -> d ====
 
Again, two setups; this can only give mini. Adding grey corners:
 
<playfield>
g g
4ttt
-tg
1--
-2
</playfield>
 
{| class="wikitable"
| from u
|
|
|
| n/a
|
|-
| from d
|
|
| n/a
|
|
|}
 
<playfield>
g g
4ttt
-tg
1--2
- 3
  3
</playfield>
 
{| class="wikitable"
| from u
|
|
|
| n/a
|
|-
| from d
|
|
| n/a
|
|
|}
 
 
==== l/r -> u ====
 
This one is full only.
 
<playfield>
gt4
ttt4
g2-
2--1
33-
</playfield>
 
{| class="wikitable"
| from u
|
<playfield>
g 4
  4
g2t
2ttx
33-
</playfield>
|
<playfield>
g 4
  4
gx-
xtt1
33-
</playfield>
|
<playfield>
g 4
  4
g2-
2t-1
xxt
</playfield>
| n/a
|
<playfield>
gt4
ttt4
g2-
2--1
33-
</playfield>
inverse
|-
| from d
|
<playfield>
g 4
  4
g2-
2ttx
33t
</playfield>
|
<playfield>
g 4
  4
g2-
xtt1
3x-
</playfield>
| n/a
|
<playfield>
g 4
ttx
g2t
2--1
33-
</playfield>
|
<playfield>
g 4
ttt4
gx-
2--1
33-
</playfield>
|}
 
So in this case only the inverse works.


== Test cases ==
== Test cases ==

Revision as of 13:04, 19 January 2022

T-Spin notes.

T kicks in SRS

Oshisaure had a table somewhere but I lost it, so here it is again. Note that CCW kicks are mirrored.

Rotation Initial state Kick 1 Kick 2 Kick 3 Kick 4 Kick 5
u, CW
T
TTT
T
-TT
T
T-
TT-
T1
T
TT
T--
21
-
---
X
TT
T

impossible

2-
---
T1
TT
T
r, CW
T
TT
T
-
TTT
T
-
1TTT
-T
-
1--2
TTT
T
TTT
T
1--
-2
TTT
T
1--2
- 3
3
4TTT
-T
1--
-2
4TTT
-T
1--2
- 3
3
d, CW
TTT
T
T
TT-
T
1T
-TT
-T
T
XT
--T
-

impossible

12
---
T2
TT
T
12
---
-T
4TT
4T
l, CW
T
TT
T
T
TTT
-
T-
TTT1
-
2-
2T-1
TTT
T
TTT
2-
2--1
33-
T4
TTT4
2-
2--1
33-

Kicks that can satisfy 3-corner

Rotation Kick 1 Kick 2 Kick 3 Kick 4 Kick 5
u -> r/l Yes (either) Yes (mini) Yes (mini) n/a Yes (either)
r/l -> d Yes (either) No Yes (full) Yes (either) Yes (mini)
d -> l/r Yes (either) Yes (mini) n/a Yes (either) Yes (mini)
l/r -> u Yes (either) No Yes (mini) Yes (either) Yes (full)

Notes by kick:

  • 1 is base rotation
  • 2 only gives minis (sideways-pointing minis) that may or may not be immobile.
  • 3 leads to the alternate way of the classic TSD kick (if going to d) and the only way to get upwards-pointing minis.
  • 4 is the Neo MTSD kick if going to d. If going to u, mini is also possible. It's not clear if there's a legal setup for getting full 3-corner with the kick going to either d or u (doesn't look like it).
  • 5 is the TST kick, but only gives TSTs if starting from u; if starting from d it is the Fin TSD kick. If l/r, it becomes another up-kick similar to 4 when starting from l/r.

Analysis of Kick 4

The main problem is getting a piece into the location where it can kick upwards into the spot that satisfies 3-corner in either full or mini.

l/r -> d

We have two hypothetical setups for this kick. Adding suitable grey points to denote the four corners, we have:

G G
TTT
GTG
1--
-2


from u
GTG
XTT
-2
G-T
1TTT
-2

Mini only

G-G
1-T
TXT

n/a

G5T
TTT
G-G
1--
-2

Full only

from d
G-G
XTT
T2
G-G
1TTT
-X

n/a

TTT
GTG
1--
-2

Inverse

G5G
TTT
G-T
1--5
-2

Mini only

Thus, we have some new potential setups, although neither of the mini only ones can clear any lines (they can still score points though) and given their placements are thus mostly useless in practice.

To the other setup:

G G
TTT
GTG
1--2
- 3
3


from u n/a
from d n/a

l/r -> u

GTG
TTT
2-
2--1
33-


from u
G G
2T
2TTX
33-
G G
X-
XTT1
33-
G G
2-
2T-1
XXT
n/a (no inverse!)
X G
TTT
2-
2--1
33-

3-corner impossible

from d
G G
2-
2TTX
33T
G G
2-
XTT1
3X-
n/a
G G
TTT
2T
2--1
33-


G G
TTT
X-
2--1
33-

Analysis of Kick 5

l/r -> d

Again, two setups; this can only give mini. Adding grey corners:

G G
4TTT
-TG
1--
-2


from u n/a
from d n/a
G G
4TTT
-TG
1--2
- 3
3


from u n/a
from d n/a


l/r -> u

This one is full only.

GT4
TTT4
G2-
2--1
33-


from u
G 4
4
G2T
2TTX
33-
G 4
4
GX-
XTT1
33-
G 4
4
G2-
2T-1
XXT
n/a
GT4
TTT4
G2-
2--1
33-

inverse

from d
G 4
4
G2-
2TTX
33T
G 4
4
G2-
XTT1
3X-
n/a
G 4
TTX
G2T
2--1
33-
G 4
TTT4
GX-
2--1
33-

So in this case only the inverse works.

Test cases

The minimum required to satisfy all rules is 3-corner with pointing side and the back of the T not facing a wall or floor.

Brackets indicate an unverified entry.

Before After Lines Imm? 3-c? Pnt? Kick? TST kick? Back? T.com TF NewT TW DS NC TZ TOJ TPD TTw Notes
Classic TSD
TGG
GGGGTC GGG
GGGGGTGGGG
GG
GGGGTCTGGG
GGGGGTGGGG
 2 Yes Yes Yes No No Empty Full Full Yes Yes Full Full Full Full Full
TGG
GGGGTC GGG
GGGGGTGGGG
TGG
GGGG CTGGG
GGGGGTGGGG
 1 Yes Yes Yes No No Empty Full Full (Yes) Yes Full _ _ _ Full
TGG
GGGGTC GGG
GGGGGTGGGG
TGG
GGGGTCTGGG
GGGGG GGGG
 1 Yes Yes No No No Empty Mini _ _ Yes Full _ _ _ Mini
GG
GGGGTCTGGG
GGGGGTGGGG
TGG
GGGGTC GGG
GGGGGTGGGG
 1 No Yes No No No Empty Mini _ _ Yes Full _ _ _ Mini
T
GGCTGG
GGGGT GGG
GGGGG GGGG
GG GG
GGGGTCTGGG
GGGGGTGGGG
 2 Yes Yes Yes Yes (3) No Empty Full _ _ Yes Full _ _ _ Full
TSS from classic TSD setup
TGG
GGGGTC GG
GGGGGTGGGG
GG
GGGGTCTGG
GGGGGTGGGG
 1 Yes Yes Yes No No Empty _ _ _ _ Full _ _ _ Full
TGG
GGGGTC GGG
GGGGGTGGG
GG
GGGGTCTGGG
GGGGGTGGG
1 Yes Yes Yes No No Empty _ _ _ _ Full _ _ _ Full
T
GGCTGG
GGGGT GGG
GGGGG GGG
GG GG
GGGGTCTGGG
GGGGGTGGG
1 Yes Yes Yes Yes (3) No Empty _ _ _ _ Full _ _ _ Full
T
GGCTGG
GGGGT GG
GGGGG GGGG
GG GG
GGGGTCTGG
GGGGGTGGGG
 1 Yes Yes Yes Yes (3) No Empty _ _ _ _ Full _ _ _ Full
Upward-pointing Mini TSS
TGGGG
GGGGTTGGGG
GGG TGGGG
GGGG
GGGGT GGGG
GGGTTTGGGG
 1 Yes Yes No Yes (3) No Floor _ _ _ _ Mini _ _ _ Mini
TGGGG
GGGGTTGGGG
GGG TGGGG
GGGGGGGGG
GGGG
GGGGT GGGG
GGGTTTGGGG
GGGGGGGGG
1 Yes Yes No Yes (3) No Block _ _ _ _ Mini _ _ _ Mini
TGGGG
GGGGTTGGGG
GGG TGGGG
GGGG GGGG
GGGG
GGGGT GGGG
GGGTTTGGGG
GGGG GGGG
1 Yes Yes No Yes (3) No Empty _ _ _ _ Mini _ _ _ Mini
Sideways-pointing Mini TSS
G T
GGGGGGTTTG
GGGGGG GGG
GT
GGGGGGTT G
GGGGGGTGGG
 1 Yes Yes No Yes (2) No Block _ _ _ _ Mini _ _ _ Mini
GG T
GGGGG TTTG
GGGGGG GGG
GGT
GGGGG TT G
GGGGGGTGGG
 1 Yes Yes No Yes (2) No Empty _ _ _ _ Mini _ _ _ Mini
T G
TCTGGGGGGG
GGGGGGGGG
T G
CT GGGGGGG
TGGGGGGGGG
 1 Yes Yes No Yes (2) No Wall _ _ _ _ Mini _ _ _ Mini
TST-kick setups
TGG
TTTG
GGGG GGGGG
GGG GGGGG
GGGG GGGGG
GG
G
GGGGTGGGGG
GGGTTGGGGG
GGGGTGGGGG
 3 Yes Yes Yes Yes (5) Yes Block Full Full _ _ Full
TGG
TTTG
GGGG GGGG
GGG GGGGG
GGGG GGGGG
GG
G
GGGGTGGGG
GGGTTGGGGG
GGGGTGGGGG
 2 Yes Yes Yes Yes (5) Yes Block Full Full _ _ Full
TGG
TTTG
GGGG GGGG
GGG GGGG
GGGG GGGGG
GG
G
GGGGTGGGG
GGGTTGGGG
GGGGTGGGGG
 1 Yes Yes Yes Yes (5) Yes Block Full Full _ _ Mini
TGG
TTTG
GGGG GGGGG
GGG GGGGG
GGG GGGGG
GG
G
GGGGTGGGGG
GGGTTGGGGG
GGG TGGGGG
 2 Yes Yes No Yes (5) Yes Block _ _ _ _ Full
TGG
TTTG
GGGG GGGG
GGG GGGGG
GGG GGGGG
GG
G
GGGGTGGGG
GGGTTGGGGG
GGG TGGGGG
 1 Yes Yes No Yes (5) Yes Block _ _ _ _ Mini
TGG
TTTG
GGGG GGGGG
GGG GGGG
GGGG GGGGG
GG
G
GGGGTGGGGG
GGGTT GGGG
GGGGTGGGGG
 2 Yes Yes Yes Yes (5) Yes Hole
TGG
TTTG
GGGG GGGG
GGG GGG
GGGG GGGGG
GG
G
GGGGTGGGG
GGGTT GGG
GGGGTGGGGG
 1 Yes Yes Yes Yes (5) Yes Hole
TGG
TTTG
GGGG GGGGG
GGG GGGG
GGG GGGGG
GG
G
GGGGTGGGGG
GGGTT GGGG
GGG TGGGGG
 1 Yes Yes No Yes (5) Yes Hole Full
TG
G TTT
GGGGGGGGG
GGGGGGGG
GGGGGGGGG
G
G
GGGGGGGGGT
GGGGGGGGTT
GGGGGGGGGT
 3 Yes Yes Yes Yes (5) Yes Wall
TST-kick chaining setups
TGG
TTTG
GGGG GGGGG
GGG GGGG
GGG GGGGG
GG
G
GGGG GGGGG
GGGTTTGGGG
GGG TGGGGG
 1 Yes Yes No Chain Chain Empty Full
TGG
TTTG
GGGG GGGGG
GGG GGGGG
GG GGGGG
GG
G
GGGG GGGGG
GGGT GGGGG
GGTTTGGGGG
 1 Yes Yes No Yes (3) Chain Floor Mini
GG
G
GGGG GGGGG
GGGT GGGGG
GGTTTGGGGG
GG
G
GGGGTGGGGG
GGGTTGGGGG
GG TGGGGG
 2 Yes Yes No Yes (3) Chain Block (Mini)
G
GGGGGGGGG
GGGGGGGGT
GGGGGGGTTT
G
GGGGGGGGGT
GGGGGGGGTT
GGGGGGG T
 2 Yes Yes No Yes (3) Chain Wall (Mini)
TGG
TTTG
GGGG GGGGG
GGG GGGGG
GGG GGGG
GGG GGGGGG
GG
G
GGGG GGGGG
GGGT GGGGG
GGGTT GGGG
GGGTGGGGGG
 1 Yes Yes No Yes (2) Chain Block
TGG
TTTG
GGGG GGGGG
GGG GGGGG
GGG GGGG
GGG GGGGGG
GG
G
GGGG GGGGG
GGGT GGGGG
GG TT GGGG
GGGTGGGGGG
 1 Yes Yes No Yes (2) Chain Empty
TGG
TTTG
GG GGGGGGG
GGGGGGG
GGGGGGG
GGGGGGGGG
GG
G
GG GGGGGGG
T GGGGGGG
TT GGGGGGG
TGGGGGGGGG
 1 Yes Yes No Yes (2) Chain Wall
Neo MTSD-like
SS
SSI
TCTI
JJ Z TLI
JOOZZT LI
JOOZTTT LL
SS
SSI
I
JJ Z TLI
JOOZZTTCLI
JOOZTTTTLL
 2 No Yes No Yes (4) No Block (*1) _ n/a _ Full _ _ _ Mini (*2)
SS
SSI
TCTI
JJJ Z TLI
OOJZZT LI
OO ZTTT LL
SS
SSI
I
JJJ Z TLI
OOJZZTTCLI
OO ZTTTTLL
 1 No Yes No Yes (4) No Block _ _ _ _ Mini _ _ _ Mini
GGGG
TCTGG
TGGG
GGGGG GG
GGGGGG GGG
GGGG
GG
TGGG
GGGGGTT GG
GGGGGGTGGG
 1 No Yes No Yes (4) No Empty _ _ _ _ _ _ _ _ Mini
Fin TSD-like
L
LLL
TTTI
T I
GGGGGGG I
GGGGGGGG I
L
LLL
I
TI
GGGGGGGTTI
GGGGGGGGTI
 2 No Yes No Yes (5) Yes Block _ _ _ _ Full _ _ _ Full
L
LLL
TTTI
T I
GGGGGGG I
GGGGGGG I
L
LLL
I
TI
GGGGGGGTTI
GGGGGGGTI
 1 No Yes No Yes (5) Yes Block _ _ _ _ Mini _ _ _ Full
GGGGG
TTTGGG
T GGG
GGGGG GG
GGGGGG GGG
GGGGG
GGG
TGGG
GGGGGTT GG
GGGGGGTGGG
 1 No Yes No Yes (5) Yes Empty
GG
G TTT
G T
GGGGGGGG
GGGGGGGGG
GG
G
G T
GGGGGGGGTT
GGGGGGGGGT
 1 No Yes No Yes (5) Yes Wall
Reverse TST kicks

The following list some mishandlings of MTSDs:

  • Tetris.com (*1): 2 lines, 0 points, does not begin back-to-back
  • Tetris Twist (*2): 2 lines, 200 points, treated as Mini T-Spin Single

Post-2009 Definition

Setups

GGGGGGG..L
GGGGGGGLLL
GGGGGGIIII
GGGGGGG
GGGGGGGGG
GGGGGGGG
GGGGGGG


Links

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