Tetris Wiki

TKI is a T-Spin Double opener. It is invented by player TKI. TKI openers should be memorized so that you can have an aggressive start.

TKI 3[]

There are many variations to the TKI opener, but this is the TKI 3.

j
j
lzzsjj
lzzssoo
lliiiisoo
j
j
ltzzsjj
lttzzssoo
lltiiiisoo
j
j
lzzsjj
lpppzzssoo
llpiiiisoo
j
j
lzzsjj

Look in the piece preview for these cases:

  • I-block: Drop in the center.
  • L-block (J in the mirrored setup): DAS to the left wall and drop.
  • Z-block (S in the mirrored setup): Drop on top of the I-block. If building the mirrored setup, S-block would be moved one space to the right.
  • S-block: Drop vertically in between O and Z.
  • O-block: DAS to the right wall.
  • J-block (L in the mirrored setup): DAS to the right wall.
  • T-block: Used for the T-Spin Double.

Be careful of these situations:

  • If S (Z in the mirrored setup) comes before I, you can slide in the I, as in this diagram:
s
ss
s

Drop S

s
ss
iiiis

Soft drop I

s
ss
iiiis

Slide I

  • If O comes late, try the snail variation.
  • If Z (S in the mirrored setup) comes before I, it is impossible to build a TKI.

Other TKI Setups[]

The above setup is the Castle Top variation. There are also other setups:

  • Fonzie variation
j
lzzsjjj
lzzssoo
lliiiisoo
  • Flat Top variation
jjj
lzzjs
lzzssoo
lliiiisoo
  • Snail variation (Trustworthy DT)
s
lzzssoo
lzzsjoo
lliiiijjj

Continuations[]

  • Example of 3 TSD

<fumen> code=m110@7eVReI+jB3cBcgBTfBKVBtCdliBejBLdBMhBvVB6eB?NAdFgBWiBhdBsgBKQBN7cFbBAAA </fumen>

IIII
J
J
IIIIJJ
SSJ
SSJ
IIIIJJ
ZSSJ
ZZSSJ
ZIIIIJJ
ZSSJ
OOZZSSJ
OOZIIIIJJ
L
L
LLZSSJ
OOZZSSJ
OOZIIIIJJ
L
L
LLZSSPJ
OOZZSSPPJ
OOZIIIIPJJ
L
L
LLZSSJ
OOZZSSTTTJ
OOZIIIITJJ
LJ
LJ
LLZSSJJJ
LOOJ
LOOJ
LLZSSJJJ
LZOOJ
LZZOOJ
LLZZSSJJJ
S
SS
LSZOOJ
LZZOOJ
LLZZSSJJJ
S
SSLL
LSZOOJL
LZZOOJL
LLZZSSJJJ
S
SSLL
LSPZOOJL
LPPZZOOJL
LLPZZSSJJJ
S
SSLL
LSZOOJL
LTTTZZOOJL
LLTZZSSJJJ
SJ
SSJJJLL
LSZOOJL
SJIIII
SSJJJLL
LSZOOJL
SZJIIII
SSZZJJJLL
LSZZOOJL
L
L
LL
SZJIIII
SSZZJJJLL
LSZZOOJL
L
L
LLP
SPPZJIIII
SSPZZJJJLL
LSZZOOJL
L
L
LL
STTTZJIIII
SSTZZJJJLL
LSZZOOJL
L
L
LL
LSZZOOJL
  • TKI 3 TSD Opening with TST Finish
J
J
LZZSJJ
LPPPZZSSOO
LLPIIIISOO
Z
ZZ
GGGGSZJ
GGGGSSPPPJ
LGGZZSSPJJ
OO
OO
GGGGGSPPPZ
GGGGGSSPZZ
GGGGSSZJ
ZZ
ZZ
GGGGGJJPOO
GGGGGJPPOO
GGGGSJSPZJ
SS
SS
GGGGGPLLOO
GGGGGPPLOO
GGGGSPSLZJ
  • Imperial Cross: The third diagram is preferred becuase you will have a chance to make a Perfect Clear (89%).
OO
OOZ
ZZ
SIIIIJJZG
SSLLLJG
GSLGGJGGG
OO
OOZ
ZZ
SLLIIIIZG
SSLJJJG
GSLGGJGGG
SS
SSZ
ZZ
LLLIIIIZG
LOOJJJG
GOOGGJGGG
SS
SSZ
ZZ
LLLIIIIPZG
LOOJJJPPG
GOOGGJGPGG
SS
SSZ
ZZ
LOOJJJTTG
ZZIIIISSGG
JZZOOSSGGG
JJJOOTTTGG
GGGGGGTGGG
JJSSIIIIGG
JSSLOOTGGG
JLLLOOTTGG
GGGGGGTGGG
LLLJIIIIGG
LSSJOOTGGG
SSJJOOTTGG
GGGGGGTGGG
ZZLLIIIIGG
JZZLOOTGGG
JJJLOOTTGG
GGGGGGTGGG
LJJJIIIIGG
LZZJOOTGGG
LLZZOOTTGG
GGGGGGTGGG
JJZZIIIIGG
JOOZZLTGGG
JOOLLLTTGG
GGGGGGTGGG
ZZIIIISSGG
LLLOOSSGGG
LZZOOTTTGG
GGGGGGTGGG
JJZOOLLLGG
JZZOOLTGGG
JZIIIITTGG
GGGGGGTGGG
LSZZIIIIGG
LSSJJJTGGG
LLSZZJTTGG
GGGGGGTGGG
JJJZZLLLGG
OOJSSLTGGG
OOSSZZTTGG
GGGGGGTGGG
OOZZIIIIGG
OOLJJJTGGG
LLLZZJTTGG
GGGGGGTGGG
OOZZIIIIGG
JJJZZLTGGG
OOJLLLTTGG
GGGGGGTGGG


If Perfect Clear is not possible, one may build another T-Spin Double, Imperial Cross or Fractal.

GG
LLLGGG
LIIIIGG
GGGGGGGGG

T-Spin Double

Z
IZZ
IZLLL
OOILGG
JOOISSGGG
JJJSSGG
GGGGGGGGG

Imperial Cross

I
IZ
IOOZZ
IOOLZGG
JLLLSSGGG
JJJSSGG
GGGGGGGGG

Fractal

  • Perfect Clear in 6 lines: In the third bag, O or L must come early.
OOLLLIJJ
OOLSSIJG
ZZSSIJG
GZZGGGIGG
GGGGGOOGGG
GGGGGOOGGG
GGGGTTTGGG
GGGGGTGGGG

TO

GGGGGLLGGG
GGGGGTLGGG
GGGGTTLGGG
GGGGGTGGGG

TL