diff --git a/kadai3/en-ken/kadai3/export_test.go b/kadai3/en-ken/kadai3/export_test.go
new file mode 100644
index 0000000..45d8f27
--- /dev/null
+++ b/kadai3/en-ken/kadai3/export_test.go
@@ -0,0 +1,5 @@
+package main
+
+var Execute = execute
+
+var InputRoutine = inputRoutine
diff --git a/kadai3/en-ken/kadai3/main.go b/kadai3/en-ken/kadai3/main.go
new file mode 100644
index 0000000..29865b2
--- /dev/null
+++ b/kadai3/en-ken/kadai3/main.go
@@ -0,0 +1,63 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"time"
+
+	typing "github.com/gopherdojo/dojo6/kadai3/en-ken"
+)
+
+func main() {
+	const timeoutSec = 10
+	textDict := []string{"foo", "bar", "baz", "qux"}
+	t := typing.NewTyping(textDict)
+
+	chInput := inputRoutine(os.Stdin)
+	chFinish := time.After(time.Duration(timeoutSec) * time.Second)
+
+	execute(chInput, chFinish, os.Stdout, t)
+}
+
+// Typing is interface to typing.Typing
+type Typing interface {
+	GetNextText() string
+	IsCorrect(input string) bool
+}
+
+func execute(chInput <-chan string, chFinish <-chan time.Time, stdout io.Writer, t Typing) {
+
+	score := 0
+	for i := 1; ; i++ {
+		fmt.Fprintf(stdout, "[%03d]: %v\n", i, t.GetNextText())
+		fmt.Fprint(stdout, "type>>")
+		select {
+		case text := <-chInput:
+			if t.IsCorrect(text) {
+				score++
+				fmt.Fprintln(stdout, "Correct!")
+			} else {
+				fmt.Fprintln(stdout, "Miss!")
+			}
+		case <-chFinish:
+			fmt.Fprintln(stdout, "\nTime's up!!")
+			fmt.Fprintf(stdout, "You Scored: %v\n", score)
+			return
+		}
+	}
+}
+
+func inputRoutine(r io.Reader) <-chan string {
+	ch := make(chan string)
+
+	go func() {
+		s := bufio.NewScanner(r)
+		for s.Scan() {
+			ch <- s.Text()
+		}
+	}()
+
+	return ch
+}
diff --git a/kadai3/en-ken/kadai3/main_mock_test.go b/kadai3/en-ken/kadai3/main_mock_test.go
new file mode 100644
index 0000000..c515828
--- /dev/null
+++ b/kadai3/en-ken/kadai3/main_mock_test.go
@@ -0,0 +1,44 @@
+package main_test
+
+import (
+	"io"
+)
+
+//Stdin
+type StdinMock struct {
+	i     int
+	input []string
+}
+
+func (stdin *StdinMock) Read(p []byte) (n int, err error) {
+	if stdin.i >= len(stdin.input) {
+		return 0, io.EOF
+	}
+	b := []byte(stdin.input[stdin.i] + "\n") //Scanが回るようにLF追加
+	copy(p, b)
+	stdin.i++
+	return len(b), nil
+}
+
+//Stdout
+type StdoutMock struct {
+	output []string
+}
+
+func (stdout *StdoutMock) Write(p []byte) (n int, err error) {
+	str := string(p)
+	stdout.output = append(stdout.output, str)
+	return len(str), nil
+}
+
+//Typing
+type TypingMock struct {
+}
+
+func (typ *TypingMock) GetNextText() string {
+	return "FOO"
+}
+
+func (typ *TypingMock) IsCorrect(input string) bool {
+	return "FOO" == input
+}
diff --git a/kadai3/en-ken/kadai3/main_test.go b/kadai3/en-ken/kadai3/main_test.go
new file mode 100644
index 0000000..6d7efab
--- /dev/null
+++ b/kadai3/en-ken/kadai3/main_test.go
@@ -0,0 +1,77 @@
+package main_test
+
+import (
+	"bytes"
+	"testing"
+	"time"
+
+	main "github.com/gopherdojo/dojo6/kadai3/en-ken/kadai3"
+)
+
+func TestInputRoutine(t *testing.T) {
+	input := []string{"foo", "bar", "baz", "qux"}
+	stdin := &StdinMock{
+		i:     0,
+		input: input,
+	}
+
+	ch := main.InputRoutine(stdin)
+
+	for _, expected := range input {
+		actual := <-ch
+		if actual != expected {
+			t.Errorf("expected:%v, actual:%v", expected, actual)
+		}
+	}
+}
+
+func TestExecute(t *testing.T) {
+	chInput := make(chan string, 3)
+	chFinish := make(chan time.Time, 1)
+
+	scenario := []struct {
+		inputText string
+		time      time.Time
+	}{
+		{
+			inputText: "FOO",
+		},
+		{
+			inputText: "BAR",
+		},
+		{
+			inputText: "FOO",
+		},
+		{
+			time: time.Now(),
+		},
+	}
+
+	buf := bytes.NewBufferString("")
+	typ := &TypingMock{}
+
+	go func() {
+		for _, s := range scenario {
+			time.Sleep(100 * time.Millisecond) //DASAI
+			if s.inputText != "" {
+				chInput <- s.inputText
+			}
+			if !s.time.IsZero() {
+				chFinish <- s.time
+			}
+		}
+	}()
+	main.Execute(chInput, chFinish, buf, typ)
+
+	expected := []byte("" +
+		"[001]: FOO\n" + "type>>" + "Correct!\n" +
+		"[002]: FOO\n" + "type>>" + "Miss!\n" +
+		"[003]: FOO\n" + "type>>" + "Correct!\n" +
+		"[004]: FOO\n" + "type>>" +
+		"\nTime's up!!\n" +
+		"You Scored: 2\n")
+
+	if bytes.Compare(buf.Bytes(), expected) != 0 {
+		t.Errorf("[expected]:\n%s\n[actual]:\n%s", expected, buf.Bytes())
+	}
+}
diff --git a/kadai3/en-ken/readme.md b/kadai3/en-ken/readme.md
new file mode 100644
index 0000000..4b498da
--- /dev/null
+++ b/kadai3/en-ken/readme.md
@@ -0,0 +1,14 @@
+# 課題３
+
+## タイピングゲームを作ろう
+
+- [x] 標準出力に英単語を出す（出すものは自由）
+- [x] 標準入力から1行受け取る
+- [x] 制限時間内に何問解けたか表示する
+
+## 使い方
+
+```go
+go get github.com/gopherdojo/dojo6/kadai3/en-ken/kadai3
+kadai3
+```
diff --git a/kadai3/en-ken/typing.go b/kadai3/en-ken/typing.go
new file mode 100644
index 0000000..d1286ae
--- /dev/null
+++ b/kadai3/en-ken/typing.go
@@ -0,0 +1,33 @@
+package typing
+
+import (
+	"math/rand"
+	"time"
+)
+
+// Typing is the class to judge input
+type Typing struct {
+	dict     []string
+	nextText string
+}
+
+// NewTyping is a constructor
+func NewTyping(textDict []string) *Typing {
+	rand.Seed(time.Now().UnixNano())
+
+	return &Typing{
+		dict: textDict,
+	}
+}
+
+// GetNextText returns next text
+func (t *Typing) GetNextText() string {
+	i := rand.Int() % len(t.dict)
+	t.nextText = t.dict[i]
+	return t.nextText
+}
+
+// IsCorrect judges if input is correct or not.
+func (t *Typing) IsCorrect(inputText string) bool {
+	return t.nextText == inputText
+}
diff --git a/kadai3/en-ken/typing_test.go b/kadai3/en-ken/typing_test.go
new file mode 100644
index 0000000..39237a6
--- /dev/null
+++ b/kadai3/en-ken/typing_test.go
@@ -0,0 +1,46 @@
+package typing_test
+
+import (
+	"testing"
+
+	typing "github.com/gopherdojo/dojo6/kadai3/en-ken"
+)
+
+var dict = []string{"ABC", "DEF", "GHI", "JKL", "MNO", "PQR", "STU", "VWX", "YZ"}
+
+func contains(s string) bool {
+	for _, v := range dict {
+		if v == s {
+			return true
+		}
+	}
+	return false
+}
+
+func TestTypingCanGetNextText(t *testing.T) {
+	typ := typing.NewTyping(dict)
+	for i := 0; i < 100; i++ {
+		txt := typ.GetNextText()
+		if !contains(txt) {
+			t.Errorf("actual: %v\n", txt)
+		}
+	}
+}
+
+func TestTypingIsCorrect(t *testing.T) {
+	typ := typing.NewTyping(dict)
+	txt := typ.GetNextText()
+
+	if !typ.IsCorrect(txt) {
+		t.Errorf("IsCorrect() must be true")
+	}
+}
+
+func TestTypingIsCorrectFailed(t *testing.T) {
+	typ := typing.NewTyping(dict)
+	typ.GetNextText()
+
+	if typ.IsCorrect("YZZ") {
+		t.Errorf("IsCorrect() must be false")
+	}
+}