lichess puzzles

C Language: Using lichess Puzzles

To use lichess puzzles in C, you can make use of the lichess API to fetch puzzle data and integrate it into your C program. Here's a basic example of how you might do this:

#include <stdio.h>
#include <curl/curl.h>

size_t write_callback(void ptr, size_t size, size_t nmemb, void stream) {
  fwrite(ptr, size, nmemb, (FILE *)stream);
  return size * nmemb;
}

int main() {
  CURL *curl;
  FILE *fp;
  char url[] = "https://lichess.org/api/puzzle";
  char outfilename[] = "puzzle.json";
  curl = curl_easy_init();
  if (curl) {
    fp = fopen(outfilename, "wb");
    curl_easy_setopt(curl, CURLOPT_URL, url);
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
    curl_easy_perform(curl);
    curl_easy_cleanup(curl);
    fclose(fp);
  }
  return 0;
}

In this example, we use libcurl to make a GET request to the lichess puzzle API and write the response to a file named "puzzle.json". You can then parse this JSON file to extract the puzzle data and use it in your program.

I hope this helps!