fix: double letter guess scored incorrectly

game/words/words.go

@@ -49,6 +49,7 @@ func Check(word string, solution string) (correct, present []int) {
 		// check if correct position
 		if letter == int32(solution[i]) {
 			correct = append(correct, i)
+			exclude = append(exclude, i)
 			continue
 		}
 

game/words/words_test.go

@@ -54,6 +54,12 @@ func TestCheck(t *testing.T) {
 			wantCorrect: []int{0, 1, 2, 3, 4},
 			wantPresent: []int{},
 		},
+		{
+			name:        "double letter guess",
+			args:        args{word: "trots", solution: "those"},
+			wantCorrect: []int{0, 2},
+			wantPresent: []int{4},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {