Logic Masters Deutschland e.V.

Middle Ground

(Published on 4. June 2026, 16:25 by etoler)

Normal Sudoku rules apply.

Index Lines: On a blue line, the digit in the Nth position (starting from the diamond) indicates the position along the line where the digit N appears.

Parity Lines: Digits along a red line must alternate between odd and even.

Melding: Each line in the grid can be divided into two segments, each with a different rule as indicated on the line's ends. Each segment spans at least two cells, and the two segments meet at the center of one cell, to be determined by the solver.

Quadruples: A digit in a circle must appear in at least one of the cells surrounding that circle.

(Accessibility note: Each line in the puzzle is a melded Parity/Index Line. The Index Line begins at the end with a diamond.)

Play on SudokuPad

Solution code: Digits in cells where line segments meet, from top to bottom, left to right.

Last changed on on 6. June 2026, 15:18

Solved by avishai, vollbesonderbar, sehringdipity, Calvinball, blueberrypug, mellowrobinson, Bjd, Snookerfan, tuturitu, lmdemasi, Nagesh, Mr.Anderson, Fool on Hill, NEWS, kehan628, gnidan, Isael, dinonugs
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Comments

on 6. June 2026, 15:18 by etoler
Rewording the rules for Melding.

on 5. June 2026, 09:49 by Snookerfan
Great puzzle and ruleset, very challenging at some stages. Thanks!

on 5. June 2026, 01:58 by Calvinball
Such a cool idea, and a great execution of it. Thanks!

Difficulty:4
Rating:100 %
Solved:18 times
Observed:2 times
ID:000T4V

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Solution code:

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