Instructions: Enter letters A, B, C and D in the diagram, such that every row and every column contains every letter exactly once. Same letters may not touch diagonally. Following the spiral from the outside the sequence of the four letters has to repeat, but the order of the letters in the sequence is not known. The letters at the outside give the second letter seen from that direction in the corresponding row or column.
Solution code: The 5th and the 6th row, X for empty cells.
on 22. November 2018, 00:44 by tuace
Sehr schöner Einstieg.
on 21. November 2018, 14:01 by Statistica
Das war ja buchstäblich um die Ecke gedacht... Klasse!
on 19. November 2018, 17:54 by ibag
Klasse!
on 19. November 2018, 14:00 by berni
Wortlaut bei Diagonalberührung geändert.
on 19. November 2018, 13:25 by jessica6
"Die" Buchstaben oder "gleiche Buchstaben" dürfen sich nicht diagonal berühren?