a2Towers
A game on zen2play
Young minds, engineering imagination. Players learn to picture a city in 3D from every side: the spatial thinking behind geometry, design, engineering approaches and mindsets.
Build the city. Count the skyline.
a2Towers: the puzzle played worldwide as Skyscrapers, with our own design and mechanisms. Build an Indian city skyline: every height once in each row and column, and every clue counts the towers you can see. The numbers round the edge tell you how many towers you would see standing there, because a tall tower hides the shorter ones behind it.
- 4×4 · 6×6 · 9×9
- Multiple puzzles in every size
- Six ways to look at the city
- One answer, no guessing
Nine towers, one to nine floors.
Three rules, and a lot of thinking
A tower on every square
On a 6×6 city the towers have 1 to 6 floors. Each row and each column holds every height once.
Stand at a clue and look
A number at the edge counts the towers you can see looking along that row or column.
Tall hides short
A tower is hidden when a taller one stands in front of it. Only the ones that rise above everything nearer to you are counted.
From the left you see 2, 4 and 6 — three towers, so the clue there is 3. From the right you see 5 and 6 — the clue is 2. The faded towers are hidden.
Reading the clues, with pictures
Each move below comes from a real a2Towers position. The left picture is what you know; the right one is what follows. Dashed rings mark the new towers. Every example was checked by the a2Towers engine.
Walk round your city
A solved 4×4 city, exactly as the game draws it. Press the view buttons, the same ones as on the game's board, and walk round it.
In the side views each clue says how many towers are seen from there right now, and every tower you can see gets a numbered dot. In Perspective, drag the city to turn it; the view tabs take you to every other side.
Three sizes, multiple puzzles each
4×4 A quick break: four heights, a few clues.
6×6 The heart of the game: rich enough to need every move above.
9×9 For serious players. These come with a few towers already standing: a 9×9 city is too big to pin down from its edges alone.
One answer, no guessing
Every puzzle has exactly one answer, reachable by reasoning alone. You get each puzzle once before any comes round again. Stuck? Tick Show mistakes or, if you must, Show solution.
Ready to build?
Free to play on zen2play. Sign in and start with a 4×4.