English Classic Crossword «Symbol of stubbornness»

How to guess English Classic Crossword «Symbol of stubbornness»?

The puzzle grid is on the left side of the puzzle panel, and the questions (definitions) are on the right side.
You can select a question by clicking on the desired definition in the question section using the sliders, or you can select a question by clicking on the square (cell) in the puzzle section (on the grid).
If you click the same square again on the puzzle screen, the question will appear on the opposite axis (top to bottom or left to right), if there is one.
The selected square will be displayed in yellow, the rest of the word will be displayed in gray.
You must write the corresponding letter in the answer you think with the keyboard in the yellow box.
When you type your answer, the selected square will automatically switch to the next letter.

Buttons at the down below:

Restore: You delete all written letters and start the puzzle again.
Check: Checks written letters, removes incorrect ones.
Reveal Latter: shows the correct letter in the selected square.
Reveal Word: shows the answer to the selected question (definition of the word).
Solution: shows all answers of the puzzle.

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