Logic Masters Deutschland e.V.

Japanese Products Sudoku

(Eingestellt am 6. November 2023, 12:00 Uhr von RockyRoer)

The Rules:

  1. Normal sudoku rules apply. Fill every row, column, and 3x3 box with the digits from 1-9 once each.
  2. [Shaded Cells] Shade two cells in every row, column and 3x3 box.
    No two shaded cells can touch orthogonally.
  3. [Japanese Products] Shaded cells divide the rows/columns up into 1, 2, or 3 'blocks'. Clues outside the grid represent the product of the sums of the digits in these blocks. Examples:
    • 123X5X789 would have a clue of 720,
      because (1+2+3)x(5)x(7+8+9) = (6)x(5)x(24) = 720.
    • X23456x89 would have a clue of 340
      because (2+3+4+5+6)x(8+9) = (20)(17) = 340.
    • X2345678X would have a clue of 35.
    Some clue totals must be deduced:
    • AA is a two-digit number where both digits match.
    • BBB is a three-digit number where all three digits match.
    • 10x is a multiple of 10.
    • Odd clues have an odd product

The Puzzle:

Try it on CTC software with solution check

Lösungscode: Column 5 and Row 7

Zuletzt geändert -

Gelöst von Snookerfan, StefanSch, kureha, samuel1997, h5663454, giladooshlon, Dentones, sanabas, bansalsaab, jinkela114514, Vodakhan , SEPHEN, Al Fresco, marcmees, zlotnleo, jkuo7, DVFrank, OlafLemme, madhupt, ascension, twobear, Jesper, Luigi, ManuH, RJBlarmo, meixia, Paletron, psninn, Franjo, Tony, yangduoxing, Menxar, DenchTurtle, Vebby, Netra, misko, TheZwierz, OuyangZheng, Unknown, MaNCS, Lithusei, NEWS
Komplette Liste

Kommentare

am 8. November 2023, 16:22 Uhr von madhupt
It’s amazing how the given numbers with constraints make for such a smooth solve. It was very hard for me but once it started unravelling, it was very enjoyable.

am 7. November 2023, 22:07 Uhr von marcmees
exceptional. thanks.

am 7. November 2023, 20:46 Uhr von Al Fresco
Brilliant puzzle. The AA and BBB clues in particular produced some really interesting logic :)

Zuletzt geändert am 6. November 2023, 16:24 Uhr

am 6. November 2023, 16:24 Uhr von giladooshlon
I almost made the mistake of treating the shading like star battle, but that is of course not what the rules say. It is quite surprising how much the products are constrained by the specific numbers. Hard and very nice!

am 6. November 2023, 15:17 Uhr von samuel1997
Very clever puzzle! There are some tricky points there but it turns out not quite difficult! Thank you!

am 6. November 2023, 14:06 Uhr von StefanSch
Nice!
[I should have read "No two shaded cells can touch orthogonally." earlier ...]

am 6. November 2023, 13:45 Uhr von Snookerfan
Very nice, clever and great fun! Thank you

Schwierigkeit:4
Bewertung:96 %
Gelöst:42 mal
Beobachtet:7 mal
ID:000FNL

Lösung abgeben

Lösungscode:

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