The New Sudoku Players' Forum

[Pyrrhon]

There exist a couple of crossovers between battleship variants and sudoku variants. Here is a new one. The puzzle has a moderate difficulty.

Even Battleship Sudoku

In short: it as well a battleship grid as a sudoku grid. The frame numbers are the visible ship parts in the line. The numbers in the grid are the sudoku givens. Ship parts can only be where in the sudoku is a even number. Water can as well be on even as on odd numbers. The fleet is shown below the grid. There is no further restriction between the positions of the givens in the grid and the position of ship parts.

Pyrrhon

[Pyrrhon]

Here now a crossover between "T it up" battleship and sudoku.

"T it up" Battleship Sudoku

Locate the position of the five T-formss in the grid. The T-forms do not touch each other, even not diagonally. The numbers outside the grid indicate how many cells in that row or column contain parts of the T-forms. The T-forms can not occupy the cells with given digits. Fill the grid also that every row, every column and every 3x3 box contain the digits 1 through 9. The T-forms contain the numbers given right of the grid. The forms can be rotated, but to reflected.

[Pyrrhon]

Here a crossover between battleship and killer.

Odd Battleship Killer

Locate the position of a 10-ship fleet in the left grid. The shapes of the ships are shown at the bottom of the left grid. There is one 4x1 battleship, two 3x1 cruisers, three 2x1 destroyers and 4 1x1 submarines. The numbers around the left grid indicate the number of cells occupied by ships in each row or column. Ships may touch the edge of the board, but cannot touch each other, not even diagonally. Additional each cell in the right grid has a number from 1 to 9. Place the digits so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions. The numbers in the cages of the right grid are the sum of the cells in the cages. Cells with ship parts in the corresponding left grid can only contain odd numbers.