Logic Masters Deutschland e.V.

Castaway

(Published on 13. July 2025, 00:01 by someguy209)

This puzzle was originally made for turn 6 of the Skunkworks League where we had to make a 9x9 puzzle that used the numbers 3, 6, 17, 17, 34, and 45.

Rules:

Sudoku: Place the digits 1-9 once each in every row, column, and box.

Nurikabe: Shade some cells so that all unshaded cells are orthogonally connected and every 2x2 area has at least one shaded cell. Orthogonally connected regions of shaded cells are called "islands" and digits may not repeat within one. The sum of an island is the sum of all the digits within the island.

Ports: Place 9 "ports" on unshaded cells so that there is a port in every row, column, and box. Every port must be adjacent to at least one shaded cell. One port is given in row 3 column 1.

Route: Draw a loop that moves diagonally through the centers of some cells, without branching, crossing, or overlapping itself. The loop may only move through shaded cells and port cells and cannot move through the dot in box 4. The loop must move through at least one cell on every island. Adjacent digits along the line differ by at least 5.

Given sums: Some sums are given in the upper right corners of some cells within the grid. If a given sum's cell is shaded, the given sum is the sum of the island it's on. If a given sum's cell is unshaded, it's a port cell and is the sum of all adjacent island sums.

Killer cage: Digits within a dashed killer cage sum to the value given in its corner.

Puzzle link

Example Puzzle with 6x6:

Puzzle image:

Solution code: Island cells in column 6 read top to bottom


Solved by Agent, Golden_Feather, Tilberg, aqjhs, jkuo7, Kazeyoubi, functor, Justalilguy, Brodie2000
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Comments

on 18. July 2025, 09:11 by Justalilguy
Thanks! This was very fun!

Difficulty:5
Rating:N/A
Solved:9 times
Observed:3 times
ID:000O6Y

Standard puzzle Puzzle variant Path puzzle Shading puzzle

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