Doppelblock
Play Doppelblock (Double Block) free online. Blacken exactly two cells in each row and column, fill the rest with digits 1 to N-2 (Latin square), and use outside sum clues between black cells. 30 unique-solution levels a
Source: GameZipper · Games hosted by GameZipper / PlayKovo
About this game
Play Doppelblock (Double Block) free online. Blacken exactly two cells in each row and column, fill the rest with digits 1 to N-2 (Latin square), and use outside sum clues between black cells. 30 unique-solution levels across 5 tiers from 5x5 Beginner to 7x7 Expert.
How do you play Doppelblock?
Blacken exactly two cells in each row and exactly two cells in each column. Then fill the remaining white cells with digits 1 to N-2 so each digit appears exactly once per row and once per column. Outside clues show the sum of the digits strictly between the two black cells in that line.
How many levels does Doppelblock have?
30 levels across 5 tiers: Beginner (5x5), Easy (5x5), Medium (6x6), Hard (7x7), and Expert (7x7). Each puzzle has a unique solution.
Is Doppelblock free to play?
Yes. Doppelblock is completely free to play in your browser on phone or desktop. No download required.