A clue of 1 sees only the first building, so it’s the tallest. A clue as big as the grid sees every building, so the line climbs 1, 2, 3 and so on from that end.
This is the first of the Skyscrapers techniques. Each page shows its technique on the same 7×7 from the game, Hard level 1.
The rule
- Find every clue of 1: the square next to it holds the tallest building.
- Find every clue equal to the size of the grid: fill its line from that end, 1, 2, 3 and up.
In a real puzzle
On the 7×7 every technique page follows, it’s the very first move. Row 2 has a clue of 1 on the right: only the nearest building shows, so it’s the tallest, 7.
How often you’ll need it
On 36 of the 50 Easy levels, 33 Medium and 28 Hard: whenever there’s a clue of 1 or a full clue, it’s the first move. It’s 2 of the 47 moves on the 7×7 here.