Last bottom triple
Notation
Common
Since the 2020s
Every case cross-checked
Solve the last bottom triple before L3T.
LBT / In Slot
IS10
(R Rw') R U' BR' U R U' BR U BR' R' BR Rw
12 HTM · 1 alg
IS12
(R Rw') U' BR' U BR' R U F' U' F R' BR' Rw
12 HTM · 1 alg
IS14
B' L' BR' BL' BR BL L B
8 HTM · 3 algs
IS2
Ro' L' BR U BR' U' L Ro
6 HTM · 5 algs
IS16
D' BR U' BR' D BR' U BR
8 HTM · 2 algs
IS4
D' U F' U' F U' BR U BR' D
10 HTM · 2 algs
IS27
U' BR' U BR' R BR' U' BR U R' BR'
11 HTM · 2 algs
IS26
(R') U' BR' B' BR' U BR U' B U BR
10 HTM · 3 algs
IS28
(R') R' BR' U' BR B' BR U BR' U' B U
11 HTM · 2 algs
IS9
(R R) BR U' BR U R' F' U F U' R BR
11 HTM · 2 algs
IS11
(R R) Rw R' BR R U' BR' U BR R' BR U' BR U Rw'
14 HTM · 2 algs
IS1
(Ro R R) D U' BR' U BR D'
6 HTM · 2 algs
IS13
(R R) Ro' B D U BL U' BL' D' B' Ro
8 HTM · 4 algs
IS3
(R R) B U' BR U BR' U F' U' F B'
10 HTM · 2 algs
IS15
(R R) BR' U' BR U R' BR' U' BR U
9 HTM · 1 alg
IS18
Ro' BR U BR' R' U F' U' F R U' Ro
10 HTM · 2 algs
IS6
Ro' Rw L' U BR U' BR' L Rw' Ro
8 HTM · 6 algs
IS20
Ro' BR' BL' BR R' BR BL BR' Ro
7 HTM · 2 algs
IS8
Ro' Lw R BR' F BR F' R' F Lw' U' Ro
10 HTM · 3 algs
IS29
BR D' F' D BR U' BR' U D' F D BR'
12 HTM · 2 algs
IS31
U' B' U' F' U' F U' B BR' U BR
11 HTM · 3 algs
IS5
(Rw') Rw' D BR' U' BR U D' Rw'
8 HTM · 3 algs
IS17
(Rw') U' BR' U R BR' F BR F' R' BR Rw
11 HTM · 2 algs
IS7
(Rw') Dw' R' U F' U' F R F' Dw BR Uo Do Rw
11 HTM · 4 algs
IS19
(Rw') U BL U' R U' BL' U Rw
8 HTM · 2 algs
IS22
BR R' U F' U' F R BR' R BR' U' BR U
13 HTM · 1 alg
IS23
D' U F' U' F R F' U F U' R' D
12 HTM · 2 algs
IS24
U' BR' U BR' F BR' F'
7 HTM · 3 algs
Section 1: corner in slot / Group 7: both on top
LBT / One wrong
OW2
Ro' R U R BR U' BR' U R' U' Ro
9 HTM · 3 algs
OW3
(R') R BR R F' U F U' R' BR'
9 HTM · 1 alg
OW8
Ro' BR U' BR' R' F BR' F' BR R U Ro
10 HTM · 4 algs
OW5
(Rw') BR' R BR U' BR' U R' BR Rw
9 HTM · 1 alg
OW10
U BR R' U' BR U BR' R BR' U'
10 HTM · 1 alg
OW15
(R') Ro' R U R U BR U' BR' R' U' Ro
9 HTM · 2 algs
OW14
R' BR U' B' BR' B BR' U R BR
10 HTM · 1 alg
OW11
(R') Ro' R U R U' BR U BR' R' U' Ro
9 HTM · 2 algs
OW4
R' BR' R' U F' U' F R BR
9 HTM · 1 alg
OW1
(R') R' BR' R' U' BR U BR' R BR
9 HTM · 1 alg
OW6
Ro' U R' U' BR U BR' R U' Ro
8 HTM · 2 algs
OW7
(Rw') U' BR U R F' U F U' R' BR' Rw
11 HTM · 2 algs
OW12
R BR R U F' U' F R' BR'
9 HTM · 1 alg
OW13
(R') Ro' R U' BR B U B' U BR' R' U' Ro
10 HTM · 2 algs
OW16
R' BR' R' BR' U' BR U R BR
9 HTM · 1 alg
OW9
(R') Ro' F' U F R U' BR U BR' R' U' Ro
10 HTM · 3 algs
LBT / One middle
OM2
(R Rw') R' U BL U BL' U Rw
7 HTM · 6 algs
OM3
(R') Rw BR R' F' U F U' R BR' Rw'
10 HTM · 1 alg
OM5
(R') U F' U' F R U' BR' U BR
9 HTM · 1 alg
OM6
(R) Ro' BR U' BR' U R' U BR U' BR' Ro
9 HTM · 1 alg
OM10
(R Rw') Ro' R' U' R' BR U' BR' U R U Ro Rw
10 HTM · 3 algs
OM15
(R') Ro' BR U B BR' U' BR U B' BR' U' Ro
10 HTM · 1 alg
OM14
(R Rw') R' BR U' BR' U R U' BR' U BR Rw
11 HTM · 1 alg
OM11
(R') Ro' Rw R U' R' U' BR U BR' R U Rw' Ro
11 HTM · 3 algs
OM4
(R Rw') Rw' BR' R U F' U' F R' BR Rw'
10 HTM · 1 alg
OM1
(R') Ro' R BR' BL' BR' BL BR' Ro
6 HTM · 6 algs
OM7
(R') Ro' R BR U' BR' U R' U' F' U F Ro
10 HTM · 3 algs
OM12
(R Rw') Rw' R' BR R BR U' BR' U R' BR' Rw'
11 HTM · 1 alg
OM13
(R') R BR U' BR' U R' BR' U' BR U
10 HTM · 1 alg
OM16
(R Rw') U' BR' B' U BR U' BR' B U BR Rw
11 HTM · 1 alg
OM9
(R') R BR R U' BR U BR' R' BR'
9 HTM · 2 algs
LBT / All top
AT6
(R') Ro' BR R BR' U BR U' R' BR' Ro
8 HTM · 4 algs
AT2
(R') F' U F U' R BR' U' BR U
9 HTM · 3 algs
AT8
(R') R U BR R' F' U F U' R BR' U'
11 HTM · 1 alg
AT4
(R') U BR R BR U' BR' U R' BR' U'
10 HTM · 2 algs
AT13
(R') D' R' D U' BR U BR' D' R D
10 HTM · 2 algs
AT16
(R') R BR R BR' U F' U' F' BR F' R' BR'
12 HTM · 2 algs
AT11
(R') B' D' B' F BR' F' BR B D B
10 HTM · 1 alg
AT7
Ro' BR' U' R' U' BR U BR' R U BR Ro
10 HTM · 2 algs
AT3
(R') BR U' BR U R' U F' U' F R BR
11 HTM · 1 alg
AT5
(R') F' U F U' R' U' BR' U BR
9 HTM · 2 algs
AT1
(R') Ro' U BR U' BR' R' U BR U' BR' Ro
9 HTM · 4 algs
AT15
D' R D U' BR U BR' D' R' D
10 HTM · 4 algs
AT14
(R') BR' R' U F' U BR' U BR F R BR
11 HTM · 2 algs
AT9
(R') Ro' BR R B BR' U BR U' B' R' BR' Ro
10 HTM · 2 algs
AT12
(R') Ro' L U' BR U L' BR' R' U BR U' BR' Ro
11 HTM · 2 algs
LBT / One solved
OS2
R D' U F' U' F D
7 HTM · 6 algs
OS3
(R') BR' R' U' BR U BR' R U' BR U
10 HTM · 1 alg
OS8
Rw' D' R F' U F U' R' D Rw
10 HTM · 1 alg
OS5
(Rw') U F' U' B U F U' B' Rw
9 HTM · 5 algs
OS10
R D' R U F' U' F R' D
9 HTM · 1 alg
OS15
(R') Ro' R L R U F' U' F R' L' Ro
9 HTM · 2 algs
OS14
R' D' R' U' BR U BR' R D
9 HTM · 1 alg
OS11
(R') Ro' R' U' R' U BR U' BR' R U Ro
9 HTM · 3 algs
OS4
Ro' U R BR U' BR' U R' BR U' BR' Ro
10 HTM · 1 alg
OS1
(R') R' B U' BR U BR' B'
7 HTM · 3 algs
OS6
BR U' BR' D' BR U BR' D
8 HTM · 4 algs
OS7
(Rw') Rw B R U F' U' F R' B'
9 HTM · 2 algs
OS12
R BR R BR' U' BR U R' BR'
9 HTM · 1 alg
OS13
(R') Ro' R L R BR U' BR' U R' L' Ro
9 HTM · 2 algs
OS16
R D' R' U F' U' F R D
9 HTM · 1 alg
OS9
(R') R B R' BR U' BR' U R B'
9 HTM · 1 alg
Source: Cubemuch, https://cubemuch.com/en/algs/fto/lbt/, retrieved 2026-10-29: case names and groups, and each case's algorithms: those credited to the community sheets it cites first, in its order, then those its search found, best-scored first (no votes or setups). The source's first six verified alternatives per case are retained; further generated variants are omitted to keep case pages and the client bundle bounded. Every algorithm shown was checked by the logic engine; rejected ones are listed in docs/db-exclusions.md.