---
title: "Grouped Two-String Kite: Sudoku Technique #22 | Sudoku Flow"
description: "Grouped Two-String Kite: When a row and a column each have a number as a candidate only in one far cell outside a shared box and a group inside it, and the…"
url: https://sudokuflow.com/lessons/groupedTwoStringKite/
language: en
---

[Sudoku technique lessons](https://sudokuflow.com/lessons/) / Grouped Two-String Kite

Lesson 22

# Grouped Two-String Kite

## The rule

When a row and a column each have a number as a candidate only in one far cell outside a shared box and a group inside it, and the two groups share no cells, the box can satisfy at most one group, so at least one far end must hold that number, and any cell seeing both far ends loses that candidate.

## Step by step

1. For 2, the outlined row and column each hold that candidate in only one far cell plus one or more cells inside the shared box. Each line is a strong link between its far end and its box group, and the box can hold 2 only once, so the two groups cannot both take it. This is a Grouped Two-String Kite!
2. If either far end were not 2, its line would push 2 into its box group, and the box would then force the other line onto its far end. At least one far end must be 2, so we can remove the candidate 2 from the red cell that sees both far ends.

[Read the full lesson, with more examples →](https://sudoku.rubigogames.com/techniques/grouped-two-string-kite.html)

In our app, when this technique is the next step, the hint names it and shows you why, step by step. No ads, free to download.

[App Store iPhone, iPad, Mac](https://apps.apple.com/app/apple-store/id6502922368?pt=125379530&ct=sudokuflow_cta&mt=8) [Google Play Android](https://play.google.com/store/apps/details?id=com.rubigogames.sudoku&referrer=utm_source%3Dsudokuflow%26utm_medium%3Dcta%26utm_campaign%3Dlesson)

## Try it on more boards

Each board is a real puzzle from our app, at a moment where Grouped Two-String Kite applies. Find the step yourself, or tap Hint and the app's own hint walks you through it.

Grouped Two-String Kite practice board:

```text
.  7* 6  | 5  .  .  | 9* .  .
.  5* 8* | .  3  .  | 1  .  6*
.  2  .  | .  .  6* | 4  .  .
---------+----------+---------
.  6  .  | .  .  .  | .  .  2
5  3  .  | 8  .  .  | 7* 6  9
.  9* .  | .  6* 3  | .  .  4*
---------+----------+---------
6* 1  .  | 9  .  4  | .  8  .
2  4* 5  | 3  .  .  | 6* 9* 7*
.  8  9  | 6  .  .  | .  4  1
```
Digits marked * were filled in by a player; the others were printed with the puzzle.

![Sudoku app icon](https://sudokuflow.com/assets/app-icon.png)

## Want more boards like this?

We also make a Sudoku app for iPhone, iPad, Mac and Android. There are no ads in it at all, it works offline, and when you ask for a hint it shows you the technique instead of just filling in a number.

[App Store iPhone, iPad, Mac](https://apps.apple.com/app/apple-store/id6502922368?pt=125379530&ct=sudokuflow_web&mt=8) [Google Play Android](https://play.google.com/store/apps/details?id=com.rubigogames.sudoku&referrer=utm_source%3Dsudokuflow%26utm_medium%3Dweb%26utm_campaign%3Dsite)

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