HoDoKu Kraken type 2: Finned Swampfish

Kraken type 2: Finned Swampfish: col D, col H and row 2, row 6 on 3

The fish value must either be in the Fish or one of the fins, and an XY consequence chain means either case makes the same elimination/s:

G2-5 <- I2+5 <- I4-5 <- H6+5 <- C6-5 <- C6+6 <- C1-6 <- D1+6 <- D2-6 <- D2+3
G2-5 <- G8+5 <- B8-5 <- B9+5 <- B9-4 <- B3+4 <- B3-1 <- H3+1 <- H2-1 <- H2+3
G2-5 <- I2+5 <- I4-5 <- H6+5 <- C6-5 <- C6+6 <- C1-6 <- D1+6 <- D2-6 <- D2+3 <- F3-3 <- H3+3
G2-5 <- I2+5 <- I4-5 <- E4+5 <- E5-5 <- E5+8 <- D5-8 <- D5+3
G2-5 <- G2+8 <- G7-8 <- A7+8 <- A7-3 <- H7+3

Hence every possible configuration makes the same elimination/s.

Therefore we can eliminate G2-5.