Logic Masters Deutschland e.V.

Rules

• Normal sudoku rules apply.
• There is one row indexer and one column indexer in each row, column and box. A digit N in a row indexer indicates the position of the column indexer in it's column. A digit N in a column indexer indicates the position of the row indexer in it's row.
• Value of an indexer cell is the digit in the cell it's indexing.
• Box borders divide blue region sum lines into segments, where values on each segment sum to the same number. Different lines may have different value sums.

An example of indexing rule is given below.

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