diff --git a/GlyphsJuke.vcxproj b/GlyphsJuke.vcxproj
index 62b1492..80bb1e2 100644
--- a/GlyphsJuke.vcxproj
+++ b/GlyphsJuke.vcxproj
@@ -182,6 +182,7 @@
     <ClInclude Include="src\iAllocator.h" />
     <ClInclude Include="src\LinearAllocator.h" />
     <ClInclude Include="src\Frame.h" />
+    <ClInclude Include="src\Scoreboard.h" />
     <ClInclude Include="src\StackAllocator.h" />
     <ClInclude Include="src\SystemClock.h" />
     <ClInclude Include="src\Text.h" />
diff --git a/GlyphsJuke.vcxproj.filters b/GlyphsJuke.vcxproj.filters
index faa7d5c..d9e576d 100644
--- a/GlyphsJuke.vcxproj.filters
+++ b/GlyphsJuke.vcxproj.filters
@@ -170,6 +170,9 @@
     <ClInclude Include="src\InputWindowElementFactory.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="src\Scoreboard.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Library Include="thirdparty\lua5.1.lib" />
diff --git a/src/InputWindowElement.h b/src/InputWindowElement.h
index 792a3ec..45a5524 100644
--- a/src/InputWindowElement.h
+++ b/src/InputWindowElement.h
@@ -6,6 +6,7 @@
 #include "iElement.h"
 #include "iElementDriver.h"
 #include "iInputMatcher.h"
+#include "Scoreboard.h"
 #include "Text.h"
 
 namespace gj {
@@ -17,6 +18,8 @@ class InputWindowElement : public iElement {
     UniqPtr<iInputMatcher>  matcher;
     UniqPtr<iElementDriver> driver;
 
+    Scoreboard* scoreboard;
+
     Period period;
 
     std::wstring text;
@@ -31,7 +34,7 @@ class InputWindowElement : public iElement {
 
   InputWindowElement(Param&& p) :
       iElement(p.period),
-      matcher_(std::move(p.matcher)), drv_(std::move(p.driver)),
+      matcher_(std::move(p.matcher)), drv_(std::move(p.driver)), sb_(p.scoreboard),
       text_(p.text), guide_(matcher_->expects()), width_(CountWstrBytes(p.text)) {
     param_["posX"]  = 0.;
     param_["posY"]  = 0.;
@@ -43,7 +46,11 @@ class InputWindowElement : public iElement {
       if (matcher_->done()) break;
       if (matcher_->Input(c)) {
         guide_ = Text(matcher_->expects());
+        ++sb_->correct;
+      } else {
+        ++sb_->miss;
       }
+      ++sb_->input;
     }
     drv_->Update(param_, t);
 
@@ -62,13 +69,18 @@ class InputWindowElement : public iElement {
   }
 
   void Finalize() override {
-    /* TODO score calculation */
+    ++sb_->lines;
+    if (matcher_->done()) {
+      ++sb_->completeLines;
+    }
   }
 
  private:
   UniqPtr<iInputMatcher>  matcher_;
   UniqPtr<iElementDriver> drv_;
 
+  Scoreboard* sb_;
+
   Text text_;
   Text guide_;
 
diff --git a/src/InputWindowElementFactory.h b/src/InputWindowElementFactory.h
index 7f84aa5..93ab970 100644
--- a/src/InputWindowElementFactory.h
+++ b/src/InputWindowElementFactory.h
@@ -19,7 +19,7 @@ class InputWindowElementFactory : public iElementFactory {
   InputWindowElementFactory& operator=(InputWindowElementFactory&&) = delete;
   InputWindowElementFactory& operator=(const InputWindowElementFactory&) = delete;
 
-  InputWindowElementFactory(iAllocator* alloc) : alloc_(alloc) {
+  InputWindowElementFactory(iAllocator* alloc, Scoreboard* sb) : alloc_(alloc), sb_(sb) {
   }
 
   UniqPtr<iElement> Create(Param&& param) override {
@@ -29,16 +29,18 @@ class InputWindowElementFactory : public iElementFactory {
     const std::string kana = std::get<std::string>(param.custom[1]);
 
     InputWindowElement::Param p;
-    p.period  = param.period;
-    p.driver  = std::move(param.driver);
-    p.matcher = alloc_->MakeUniq<iInputMatcher, HiraganaMatcher>(ConvertStrToWstr(kana));
-    p.text    = ConvertStrToWstr(text);
+    p.period     = param.period;
+    p.scoreboard = sb_;
+    p.driver     = std::move(param.driver);
+    p.matcher    = alloc_->MakeUniq<iInputMatcher, HiraganaMatcher>(ConvertStrToWstr(kana));
+    p.text       = ConvertStrToWstr(text);
 
     return alloc_->MakeUniq<iElement, InputWindowElement>(std::move(p));
   }
 
  private:
   iAllocator* alloc_;
+  Scoreboard* sb_;
 };
 
 
diff --git a/src/PlayScene.cc b/src/PlayScene.cc
index e75c898..326c0ca 100644
--- a/src/PlayScene.cc
+++ b/src/PlayScene.cc
@@ -7,8 +7,9 @@
 gj::PlayScene::PlayScene(Param&& p) :
     alloc_(p.alloc), logger_(p.logger), w_(p.w), h_(p.h),
     clock_(p.clock), store_(&clock_, 256) {
+
   GlyphElementFactory       glyph(alloc_);
-  InputWindowElementFactory inputWin(alloc_);
+  InputWindowElementFactory inputWin(alloc_, &sb_);
 
   Lua::FactoryMap map;
   map["Glyph"]    = &glyph;
diff --git a/src/PlayScene.h b/src/PlayScene.h
index 8903bae..ad5815c 100644
--- a/src/PlayScene.h
+++ b/src/PlayScene.h
@@ -8,6 +8,7 @@
 #include "iScene.h"
 #include "Lua.h"
 #include "OffsetClock.h"
+#include "Scoreboard.h"
 
 
 namespace gj {
@@ -50,6 +51,7 @@ class PlayScene : public iScene {
 
   OffsetClock clock_;
 
+  Scoreboard   sb_;
   ElementStore store_;
   UniqPtr<Lua> lua_;
 };
diff --git a/src/Scoreboard.h b/src/Scoreboard.h
new file mode 100644
index 0000000..a99a355
--- /dev/null
+++ b/src/Scoreboard.h
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <cstdint>
+
+
+namespace gj {
+
+
+struct Scoreboard {
+ public:
+  size_t input   = 0;
+  size_t correct = 0;
+  size_t miss    = 0;
+
+  size_t lines         = 0;
+  size_t completeLines = 0;
+};
+
+
+}
\ No newline at end of file