GridWits
Easy tier Technique 4 of 12 Used by Smart Hint

Line Must Fill

This row or column has exactly as many open cells as ship cells still needed — every one of them is a ship.

How it works

  1. 1The top row needs 3 ship cells and has exactly 3 open cells left.
  2. 2There's no room to spare — every open cell in the row is a ship.
3
  • Ship segment
  • Cells that establish the pattern
  • Where the conclusion lands
Next in the ladder Only Way to Grow →

This part-found ship can only continue one way — every ship still in the fleet that could cover it agrees on where it goes.