Double Dutch Sudoku Advent (11) - Position vs. Maxed Squares
(Published on 11. December 2014, 12:00 by Richard)
Eisbär (Arvid) and I have created a fresh sudoku advent calendar in which we combine a well known variant with a relatively unknown variant every day. Combining variants leads to interesting and surprising new solving techniques.
Logically solvable
All puzzles can be solved completely logically although the logic is sometimes well hidden and is inherent to the combination of restrictions that the different types offer. For that reason we have written some solving hints for most of the puzzles, published in a very tiny font. If you want to read the hints, simply copy these in a text editor and enlarge the font size.
Position
Place the digits from 1 to 9 in every row, column and 3x3-block. Numbers outside the grid indicate the position of the largest digit in the first three cells.
Maxed Squares
Arrows are present between two diagonally adjacent squares. In the square pointed at by the arrow, all digits are greater than the digits in their corresponding positions in the other square. Numbers can repeat in squares.
Solving hints
9 in C7 in R2C7;
9 in block bottom left in R7C3;
9 in block bottom middle in R8C56;
9 in block bottom right in R9C8;
R3C9 minimal 6 because of position markings
R1C7 minimal 7 because of maxed quads
R1C7 maximal 7 because R1C8 and R2C7 both greater than R1C7
R1C7 = 7; R1C8 =8; R3C9 = 6
9 in block top middle in R3C46; 9 in block top left in R1C1
Remaining 9's can be placed
Because there is no nine in R23C3 there can't be an eight in R56C6; 8 in R4C4.
Solution code: Row 1, followed by column 9
Comments
on 30. March 2022, 00:12 by Nick Smirnov
Penpa:
https://tinyurl.com/ydfxcavt
on 17. July 2021, 14:34 by geronimo92
The fact that the maxed squares are sometimes red or green is quite confusing....
on 11. December 2014, 15:15 by Rollo
Da kann man ja toll kombinieren :-)! Leider hab ich kurz vor Schluss einen Widerspruch :-(, aber dann kann ich ja alles nochmal machen :-).
