diff --git a/wordle_guess.cpp b/wordle_guess.cpp
new file mode 100644
index 0000000..4246a8d
--- /dev/null
+++ b/wordle_guess.cpp
@@ -0,0 +1,111 @@
+#include <iostream>
+#include <vector>
+#include <cstdlib>
+#include <ctime>
+#define RESET "\033[0m"
+#define YELLOW "\033[43m"
+#define GREEN "\033[42m"
+
+using namespace std;
+
+void start_guessing(string ans) {
+    cout << "Start Guessing:" << endl;
+    bool correct = 0;
+    int guess = 0;
+    string guessing;
+    do {
+        int color[5] = {0}; // 0 = white, 1 = yellow, 2 = green
+        bool used[5] = {0};
+        guess++;
+        cin >> guessing;
+        for (int i = 0; i < 5; i++) {
+            if (guessing[i] == ans[i]) {
+                color[i] = 2;
+                used[i] = 1;
+            }
+        }
+        for (int i = 0; i < 5; i++) {
+            for (int j = 0; j < 5; j++) {
+                if (guessing[i] == ans[j] && !used[j] && i != j && guessing[i] != ans[i]) {
+                    color[i] = 1;
+                    used[j] = 1;
+                }
+            }
+        }
+        for (int i = 0; i < 5; i++) {
+            switch (color[i]) {
+                case 0:
+                cout << RESET << guessing[i];
+                break;
+                case 1:
+                cout << YELLOW << guessing[i];
+                break;
+                case 2:
+                cout << GREEN << guessing[i];
+                break;
+                default:
+                break;
+            }
+            cout << RESET;
+        }
+        cout << endl;
+        if (color[0] == 2 && color[1] == 2 && color[2] == 2 && color[3] == 2 && color[4] == 2) {
+            correct = 1;
+            break;
+        }
+    } while (guess < 6);
+    if (correct) {
+        cout << RESET << "WORDLE NSCSC " << guess << "/6" << endl;
+    }
+    else {
+        cout << RESET << "WORDLE NSCSC X/6" << endl;
+    }
+}
+
+int main() {
+    cout << RESET;
+    vector<string> words {
+        "apple",
+        "pizza",
+        "never",
+        "gonna",
+        "given",
+        "yours",
+        "upper",
+        "utter",
+        "cloth",
+        "plant",
+        "grand",
+        "clear",
+        "clean",
+        "spill",
+        "skill",
+        "still",
+        "worth",
+        "wound",
+        "would",
+        "above",
+        "below",
+        "treat",
+        "snail",
+        "truth",
+        "birth",
+        "brand",
+        "asset",
+        "guess",
+        "slave",
+        "snake",
+        "proof",
+        "prove",
+        // TODO: 請協助 PR 以擴充題庫
+    };
+
+    srand(time(NULL));
+
+    int wordCount = words.size();
+    int questionIndex = rand() % wordCount;
+
+    cout << "本次題目：" << words[questionIndex] << endl; // comment out this line if needed
+
+    start_guessing(words[questionIndex]);
+}