Logic Masters Deutschland e.V.

This puzze was originally created as a gift for Playmaker during the 2023 Secret Santa exchange on the CtC discord, and has been posted here with his permission.

Rules:

• Normal sudoku rules apply: place the digits 1-9 once each in every row, column and region.
• Divide the digits into two teams. Each team contains 4 digits total, including: 2 high digits, 2 low digits, 2 even digits, and 2 odd digits.

  5 is a double agent; it may play for either team (though only one team at a time).

• All digits of one team are orthogonally connected.

  All digits of the other team are orthogonally connected to the edge.

• Digits along an arrow sum to the digit in the circle. Only digits belonging to the opposite team as the digit in the circle contribute to the sum.

• Clues outside the grid are either X-sums or numbered rooms clues, to be determined by the solver.

  X-sums: Clues give the sum of the first X digits in that row/column, where X is the first digit in that row/column. Only digits belonging to the opposite team as the first digit contribute to the sum.

  Numbered rooms: Clues outside of the grid indicate the digit which has to be placed in the Nth cell in that row/column, where N is first digit in that row/column. The number indexed must be from a different team to N.

  ? respresents a number from 1-9, and ?? represents a 2-digit number.

Sudokupad link: Click Here

Penpa+ link: Click Here