Case 1422: Four in Four is the Key by Will Power

CASE 1422

Four in Four is the Key

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Killer cages
Kropki dots
Arrows

The brief

Normal Sudoku rules apply. KILLER CAGES- Numbers in cages sum to the same number as all other cages. ARROWS- Numbers on arrows sum to the number in the arrow's circle. Numbers may repeat on arrows, if other rules allow. KROPKI PAIRS- Numbers with a white dot between them are consecutive. Numbers with a black dot between them are in a ratio of 2:1. Not all possible dots are given.

Four in Four is the Key: Can you craft the key that would fit this Sudoku lock? Contains the full solution