www.argio-logic.net

From a SAYAN's idea, an other variant:

the content of a cell where we have orizzontally the <> is equal to the sum or difference of adjacent cells in the row

the content of a cell where we have vertically the <> is equal to the sum or difference of adjacent cells in the column



the same puzzle made easier

https://www.argio-logic.net/img/piuomeno1.swf