If you’re struggling to see a logical move to enter, use this hint. The game will analyse the current grid and automatically fill in a few squares based on the information available. The object of the puzzle is to mark every square in the grid as containing a Boat or empty Water. Assuming that the cell in yellow has the number 2 as a candidate, there would be a Finned Swordfish pattern on the grid. By applying that technique, the candidates circled in red would not be possible.
In the three rows highlighted in blue, number 1 has only two possible positions. Since each cell is connected by column, the player has the right pattern to apply the Swordfish technique. The grid needs to meet basic constraints in order to apply the Swordfish strategy. When one single constraint is missing, the Finned Swordfish or Sashimi Swordfish variants may apply.
Here the player has three rows where number 2 is a candidate to only two cells. Yet, one of the cells in the second row is not connected to any other cell by column. To do so, the cell highlighted in yellow would have to contain number 2 as a candidate. Contrary to the Finned technique, the player is now one cell short of finding the pattern to apply the Sudoku Swordfish strategy. Only candidates within the odd-out cell can be eliminated with this technique.
The Sashimi Swordfish requires the presence of fins on the grid. This strategy can only be applied to sets of 2 digits per row or column. However, it lies within the chain of a possible Swordfish and shares the group with one of the cells of this supposed fish pattern. The player can thus apply the Finned Swordfish strategy. By applying the Sudoku Swordfish strategy, the player can thus eliminate that digit as a candidate to any other cells within the shared rows.
To the left and top of the playing field are clues – individual numbers or combinations of numbers. These numbers correspond to the groups of cells that need to be colored in the row or column in the desired order. Painted groups are separated from each other by at least one empty cell. However, the figures do not suggest how many cells that do not require filling are before the group, after it, or between groups. In Picture Cross, hundreds of logical puzzles await you in which you have to reveal the image hidden in the cells with the help of hints in the form of numbers.