Killer Global Entropy (6x6)
(Published today, 16:09 by Enchanter73)
This is the third puzzle in my series of 6x6 global entropy puzzles. You can try the previous two here:
1. Double Entropy
2. Entropic Arrows
RULES:
Normal 6x6 sudoku rules apply: Place the digits 1-6 once each in every row, column and 2x3 box.
Global entropy: Each 2x2 area in the grid must contain at least one digit from each of the three entropic sets: {1,2}, {3,4}, {5,6}.
Killer: Digits in a cage may not repeat and sum to the total given.
Click on the puzzle image to play
Solution code: Row 1
Solved by mathpesto, L00ping007, SKORP17, HeyItsErin, tiuhto, cmigas, chocobonight, cathematician, WenVo