a
A
aa
AA
aaa
abcdefghijklmnopqrstuvwxyz
acidic
aloric
c
C
calori
caloric
cAloric
color
i
I
icalor
lloorriiccaa
lorica
loricA
loriCa
lorIca
lOrica
LoRICA
LORICA
loricalorica
loricao
lrica
lyric
o
O
olorica
a
A
aa
AA
aaa
abcdefghijklmnopqrstuvwxyz
acidic
aloric
c
C
calori
caloric
cAloric
color
i
I
icalor
lloorriiccaa
lorica
loricA
loriCa
lorIca
lOrica
LoRICA
LORICA
loricalorica
loricao
lrica
lyric
o
O
olorica
"aaaa", "aaaaaa" [five and six a's, respectively]
"aA", "Aa"
"aAA"
"AA"
"aaaaaaaaa", "aaaaaaaaaa" [nine and ten a's, respectively]
"aaaaaaaaaaaaaaaaaaaaaaaaa", "aaaaaaaaaaaaaaaaaaaaaaaaaa" [twenty-five and twenty-six a's, respectively]
(n.b. please read this entire post as me screaming.)
a
A
aa
aA
Aa
AA
aaa
aAA
aaaa
aaaaaa
aaaaaaaaa
aaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaa
abcdefghijklmnopqrstuvwxyz
acidic
aloric
c
C
calori
caloric
cAloric
color
i
I
icalor
lloorriiccaa
lorica
loricA
loriCa
lorIca
lOrica
LoRICA
LORICA
loricalorica
loricao
lrica
lyric
o
O
olorica
There are still 19 available characters that you haven’t tried yet (the capitals, minus those in “LORICA” and the letter S from “CORSICA”. Plus it has been more than 72 hours.
I have a guess about the rule, but I want to try to test it first, because Style.
koan - predicted answer
----------------------------
LR - yes
lr - yes
LlRr - no
LlrR - yes
lLRr - yes
lLrR - no
lrlr - yes
lrLR - yes
lRLr - no
LrlR - no
RlrL - no
rLRl - no
rlRL - no
LxRx - yes
lXrX - yes
xLxR - yes
xLrX - no
RL - no
L - no
R - no
LLR - no
LRR - no
Lr - no
lR - no
sequeler - yes
squirrel - no
squirel - no
squiller - no
squiler - yes
xylqjrvt - yes
xyLqjRvt - yes
XYLQjRvt - yes
xyLQJRvt - yes
xyqLjRvt - yes
xyqLjvRt - yes
xyqRjvLt - no
xRyqLjvt - no
xyRqjLvt - no
xyRQJLvt - no
xLylqjrvRt - yes
xLyrqjlvRt - no
a
A
aa
aA
Aa
AA
aaa
aAA
aaaa
aaaaaa
aaaaaaaaa
aaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaa
abcdefghijklmnopqrstuvwxyz
acidic
aloric
c
C
calori
caloric
cAloric
color
i
I
icalor
lloorriiccaa
lLRr
LlrR
lorica
loricA
loriCa
lorIca
lOrica
LoRICA
LORICA
loricalorica
loricao
lr
LR
lrica
lrlr
lrLR
lXrX
LxRx
lyric
o
O
olorica
sequeler
squiler
xLxR
xLylqjrvRt
xylqjrvt
xyLqjRvt
xyLQJRvt
XYLQjRvt
xyqLjRvt
xyqLjvRt
acirol
caLoric
CORSICA
l
L
la
lA
La
LA
ll
LL
lll
llorica
LLR
lLrR
LlRr
loRica
lORICA
Lorica
LoricA
LOrica
lorical
lR
Lr
lRLr
LrlR
LRR
orica
r
R
RL
rlRL
rLRl
RlrL
squiller
squirel
squirrel
xLrX
xLyrqjlvRt
xRyqLjvt
xyqRjvLt
xyRqjLvt
xyRQJLvt
Balanced parentheses. L/l stands for Lleft, R/r for Rright. L matches R, l matches r. LR or lr makes a valid pair.
Nested pairs like LlrR ([]) are okay; so are non-nested pairs like LRlr ()[]. Partially overlapping pairs like LlRr ([)] are forbidden. Strings containing no pairs like xyzzy are okay. Wrong-way-round pairs like RL are not okay. In otherwise-ambiguous cases like LLRR, pair in such a way as to make a yes if possible (LLRR not LLRR). Non-case-matching pairs like Lr (] don't count as pairs.