Chain Sudoku 6×6 – Hard

Chain Sudoku 6x6 - Hard
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About Chain Sudoku 6x6

"Chain Sudoku 6x6" (also known as "Strimko") consists of circles arranged in a square grid with clues in various places. The goal is to fill all the empty circles so that the digits 1-6 appear exactly once in each row, column, and chain.