chore: manual translations (#42811)

curriculum/challenges/espanol/06-quality-assurance/quality-assurance-projects/sudoku-solver.md

@@ -2,6 +2,7 @@
 id: 5e601bf95ac9d0ecd8b94afd
 title: Sudoku Solver
 challengeType: 4
+forumTopicId: 462357
 dashedName: sudoku-solver
 ---
 
@@ -10,7 +11,7 @@ dashedName: sudoku-solver
 Build a full stack JavaScript app that is functionally similar to this: <https://sudoku-solver.freecodecamp.rocks/>. Working on this project will involve you writing your code using one of the following methods:
 
 -   Clone [this GitHub repo](https://github.com/freecodecamp/boilerplate-project-sudoku-solver) and complete your project locally.
--   Use [our repl.it starter project](https://repl.it/github/freeCodeCamp/boilerplate-project-sudoku-solver) to complete your project.
+-   Use [our Replit starter project](https://replit.com/github/freeCodeCamp/boilerplate-project-sudoku-solver) to complete your project.
 -   Use a site builder of your choice to complete the project. Be sure to incorporate all the files from our GitHub repo.
 
 When you are done, make sure a working demo of your project is hosted somewhere public. Then submit the URL to it in the `Solution Link` field. Optionally, also submit a link to your project's source code in the `GitHub Link` field.
@@ -24,7 +25,7 @@ When you are done, make sure a working demo of your project is hosted somewhere
 - All routing logic can go into `/routes/api.js`
 - See the `puzzle-strings.js` file in `/controllers` for some sample puzzles your application should solve
 - To run the challenge tests on this page, set `NODE_ENV` to `test` without quotes in the `.env` file
-- To run the tests in the console, use the command `npm run test`. To open the Repl.it console, press Ctrl+Shift+P (Cmd if on a Mac) and type "open shell"
+- To run the tests in the console, use the command `npm run test`. To open the Replit console, press Ctrl+Shift+P (Cmd if on a Mac) and type "open shell"
 
 Write the following tests in `tests/1_unit-tests.js`:
 
@@ -39,7 +40,7 @@ Write the following tests in `tests/1_unit-tests.js`:
 -   Logic handles an invalid region (3x3 grid) placement
 -   Valid puzzle strings pass the solver
 -   Invalid puzzle strings fail the solver
--   Solver returns the the expected solution for an incomplete puzzzle
+-   Solver returns the expected solution for an incomplete puzzle
 
 Write the following tests in `tests/2_functional-tests.js`
 
@@ -202,6 +203,25 @@ async (getUserInput) => {
 };
 ```
 
+If `value` submitted to `/api/check` is already placed in `puzzle` on that `coordinate`, the returned value will be an object containing a `valid` property with `true` if `value` is not conflicting.
+
+```js
+async (getUserInput) => {
+  const input =
+  '..9..5.1.85.4....2432......1...69.83.9.....6.62.71...9......1945....4.37.4.3..6..';
+  const coordinate = 'C3';
+  const value = '2';
+  const data = await fetch(getUserInput('url') + '/api/check', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ puzzle: input, coordinate, value })
+  });
+  const parsed = await data.json();
+  assert.property(parsed, 'valid');
+  assert.isTrue(parsed.valid);
+};
+```
+
 If the puzzle submitted to `/api/check` contains values which are not numbers or periods, the returned value will be `{ error: 'Invalid characters in puzzle' }`
 
 ```js