Logic Masters Deutschland e.V.

This puzzle is one of four practice puzzles that I created for this years WPC team round "Table for Four". In this round, teams of four players had to solve puzzles in four colours; each player had a coloured pen (red, green, blue, black) and wasn't allowed to write in a different colour. Each puzzle has grid size 9x9, and in each colour 20 cells have to be marked; one cell remains empty. No cell can be marked in more than one colour.

The clues outside the grid apply only for the player with the corresponding colour; the players are seated at four sides of a table, and clues are always orientated towards the player with the corresponding colour.

The rules for each player are:

Place the given set of ships into the grid. Ships cannot touch each other, not even diagonally. Clues outside the grid show the number of occupied cells in the corresponding row or column. Some ship segments are given on the grid - it is up to your team to determine which colour each segment belongs to.