diff --git a/Shogi.sln b/Shogi.sln
index 3d64532..25391b4 100644
--- a/Shogi.sln
+++ b/Shogi.sln
@@ -40,11 +40,9 @@ Global
 		{4F93F735-DCCE-4A5D-ADDC-E0986DE4C48D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{4F93F735-DCCE-4A5D-ADDC-E0986DE4C48D}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{4F93F735-DCCE-4A5D-ADDC-E0986DE4C48D}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{4F93F735-DCCE-4A5D-ADDC-E0986DE4C48D}.Release|Any CPU.Build.0 = Release|Any CPU
 		{30F4E3DB-027F-4885-BE06-884167C1C6CF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{30F4E3DB-027F-4885-BE06-884167C1C6CF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{30F4E3DB-027F-4885-BE06-884167C1C6CF}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{30F4E3DB-027F-4885-BE06-884167C1C6CF}.Release|Any CPU.Build.0 = Release|Any CPU
 		{1B9445A9-9C4D-46E3-8027-926C7FE0B55B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{1B9445A9-9C4D-46E3-8027-926C7FE0B55B}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1B9445A9-9C4D-46E3-8027-926C7FE0B55B}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -57,7 +55,6 @@ Global
 		{9B115B71-088F-41EF-858F-C7B155271A9F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9B115B71-088F-41EF-858F-C7B155271A9F}.Debug|Any CPU.Deploy.0 = Debug|Any CPU
 		{9B115B71-088F-41EF-858F-C7B155271A9F}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{9B115B71-088F-41EF-858F-C7B155271A9F}.Release|Any CPU.Build.0 = Release|Any CPU
 		{9B115B71-088F-41EF-858F-C7B155271A9F}.Release|Any CPU.Deploy.0 = Release|Any CPU
 		{62604006-6E18-45DA-8D5A-6ADD1C6D3CE2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{62604006-6E18-45DA-8D5A-6ADD1C6D3CE2}.Debug|Any CPU.Build.0 = Debug|Any CPU