diff --git a/kadai3-1/nKumaya/.gitignore b/kadai3-1/nKumaya/.gitignore
new file mode 100644
index 0000000..e43b0f9
--- /dev/null
+++ b/kadai3-1/nKumaya/.gitignore
@@ -0,0 +1 @@
+.DS_Store
diff --git a/kadai3-1/nKumaya/README.md b/kadai3-1/nKumaya/README.md
new file mode 100644
index 0000000..24ae34f
--- /dev/null
+++ b/kadai3-1/nKumaya/README.md
@@ -0,0 +1,15 @@
+# 課題3-1 タイピングゲームを作ろう
+
+## タイピングゲームの説明
+
+```
+go run main.go
+```
+ランダムに果物の名前が表示され30秒のタイピングゲームを行う。
+制限時間になると入力した問題数と正解した問題数が出力される。
+
+以下結果出力例
+
+```
+total_input : 16  correct_answer : 15
+```
diff --git a/kadai3-1/nKumaya/main.go b/kadai3-1/nKumaya/main.go
new file mode 100644
index 0000000..02cfa21
--- /dev/null
+++ b/kadai3-1/nKumaya/main.go
@@ -0,0 +1,78 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"math/rand"
+	"os"
+	"time"
+)
+
+const (
+	ExitCodeOK = iota
+)
+
+var words = []string{"apple", "banana", "strawberry", "kiwi", "cherry", "melon", "plum", "pear", "pineapple", "grape", "peach"}
+
+type inputer interface {
+	input(io.Reader) <-chan string
+}
+
+type question struct {
+}
+
+type Vocabulary []string
+
+type Score struct {
+	correctInput int
+	totalInput   int
+}
+
+func (w Vocabulary) chooseWord() string {
+	index := rand.Intn(len(w))
+	return w[index]
+}
+
+func (q *question) input(r io.Reader) <-chan string {
+	ch := make(chan string)
+	go func() {
+		s := bufio.NewScanner(r)
+		for s.Scan() {
+			ch <- s.Text()
+		}
+		close(ch)
+	}()
+	return ch
+}
+
+func Run(candidates []string, i inputer) int {
+	var score Score
+	ch := i.input(os.Stdin)
+	timeout := time.After(30 * time.Second)
+	fmt.Println("---------Typing Start!! ---------")
+	for {
+		answer := Vocabulary.chooseWord(candidates)
+		fmt.Println(answer)
+		fmt.Print("> ")
+		select {
+		case input := <-ch:
+			if answer == input {
+				score.correctInput++
+				fmt.Printf("correct!!\n\n")
+			} else {
+				fmt.Printf("failed!\n\n")
+			}
+			score.totalInput++
+		case <-timeout:
+			fmt.Printf("\n\n---------Timed Out---------\n\n")
+			fmt.Printf("total_input : %d  correct_answer : %d\n", score.totalInput, score.correctInput)
+			return ExitCodeOK
+		}
+	}
+}
+
+func main() {
+	q := &question{}
+	os.Exit(Run(words, q))
+}
diff --git a/kadai3-1/nKumaya/main_test.go b/kadai3-1/nKumaya/main_test.go
new file mode 100644
index 0000000..fed8cdc
--- /dev/null
+++ b/kadai3-1/nKumaya/main_test.go
@@ -0,0 +1,47 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"testing"
+)
+
+var q = question{}
+
+func TestInput(t *testing.T) {
+	t.Helper()
+	file, err := os.Open("testdata/sample.txt")
+	if err != nil {
+		fmt.Println(err)
+	}
+	defer file.Close()
+	result := q.input(file)
+	expects := []string{"banana", "apple"}
+	for _, expected := range expects {
+		r := <-result
+		if r != expected {
+			t.Error(r)
+			t.Error(expected)
+		}
+	}
+}
+
+type testQuestion struct{}
+
+func (m *testQuestion) input(r io.Reader) <-chan string {
+	ch := make(chan string)
+	go func() {
+		ch <- "banana"
+	}()
+	return ch
+}
+
+func TestRun(t *testing.T) {
+	t.Helper()
+	m := &testQuestion{}
+	result := Run(words, m)
+	if result != ExitCodeOK {
+		t.Error(result)
+	}
+}
diff --git a/kadai3-1/nKumaya/testdata/sample.txt b/kadai3-1/nKumaya/testdata/sample.txt
new file mode 100644
index 0000000..e4ceb84
--- /dev/null
+++ b/kadai3-1/nKumaya/testdata/sample.txt
@@ -0,0 +1,2 @@
+banana
+apple