Place a digit from 1-9 into every cell of the grid so that each digit appears exactly once in every row, column and outlined 3x3 box.
Each digit 9 represents a chess queen. No two queens can attack each other - that is, no 9 can appear on the same diagonal as any other 9.
Solution code: Row 1, Row 5
on 6. March 2020, 07:04 by r45
Tolle Serie, vielen Dank!
on 5. March 2020, 22:30 by Nothere
Schöner Lösungsweg. Vielen Dank!
on 5. March 2020, 14:30 by flaemmchen
Danke!
on 5. March 2020, 14:16 by Feadoor
Added clarification about how queens move.
on 5. March 2020, 14:00 by flaemmchen
Welche Züge darf denn die Königin machen? Ich kann kein Schach :-(
on 5. March 2020, 13:21 by CHalb
Good work! That was fun :-).