Walkthrough courtesy of jcbonsai:

45 on R9 -> R89C5 = [42]
LoL on C5 & Cage 45/9 -> {R12C5} = {R7C46} & {R89C5} = {R3C46}
-> R3C46 = {24} (NP @ N2, R3)
Innies of N2 -> R3C5 = 9
Cage 9/3 in N2 = {135} (NT @ R2)
Cage 21/3 in N2 = {678} (NT @ R1)
Cage 17/2 in R12C8 = [98]
Cage 14/2 in R12C2 = [59]

Cage 29/4 in R9 = {5789} (NQ @ R9)
-> Cage 14/4 in R9 = {1346}
Outies of C123 -> R89C4 = 10 = [19|37]
-> {58} of Cage 29/4 locked in R9C123 -> not elsewhere in N7
Cage 11/4 in N47 = {1235} -> R6C1 = 5, R78C1+R8C2 = NT {123} @ N7
R9C3 = 5
Outies of C789 -> R89C6 = 11 = [56|83]
-> {14} of Cage 14/4 locked in R9C789 -> not elsewhere in N9

Innies of N8 -> R7C456 = 18 = {378|567} = {7..} -> no 7 elsewhere in N8, R7, Cage 45/9)
R89C4 = [19], R678C3 = 23 = {689}, R6C3 = 8, R78C3 = {69} (NP @ N7, C3)
R7C12 = [14]
Innies of C3 -> R5C3 = 2
R8C12 = [32] (HS @ C2)
Innies of C1 -> R59C1 = 17 = [98]
R9C2 = 7, R3C2 = 8 (HS @ C2)
R456C2 = {136}, R4C13 = {47} (NP @ R4)

LoL on C5 -> {R12C5} = {R7C46} -> R2C5 <> 1
R2C6 = 1 (HS @ N2)

Outies of C89 -> R59C7+R9C6 = 8
Min R59C7 = {13} = 4 -> Max R9C6 = 4
-> R89C6 = [83], R59C7 = 5 = {14}
R7C9 = 8, R4C7 = 8

R7C456 = {567}
LoL on C5 -> {R12C5} = {R7C46} -> R12C5 <> [83]
R2C45 = [35], R1C4 = 8, R5C5 = 8, R46C5 = {13}
Cage 21/4 in C7 -> R123C7 = 13 = [265], R7C78 = [32]
Cage 19/4 in R1234C1 = [4267], R2C39 = [74]
Cage 16/4 in R1234C9 = [3472]
...