yep

Shogi.Database/Session/Stored Procedures/CreateSession.sql

@@ -1,14 +1,14 @@
 CREATE PROCEDURE [session].[CreateSession]
-	@InitialBoardStateDocument [session].[JsonDocument]
+	@InitialBoardStateDocument [session].[JsonDocument],
+	@Player1Name [user].[UserName]
 AS
 BEGIN
 	SET NOCOUNT ON
 
-	INSERT INTO [session].[Session] ([Name], BoardState, Player1Id)
+	INSERT INTO [session].[Session] (BoardState, Player1Id)
 	SELECT
-		JSON_VALUE(@InitialBoardStateDocument, '$.Name'),
 		@InitialBoardStateDocument,
 		Id
 	FROM [user].[User]
-	WHERE [Name] = JSON_VALUE(@InitialBoardStateDocument, '$.Player1');
+	WHERE [Name] = @Player1Name
 END

Shogi.Database/Session/Stored Procedures/ReadSession.sql

@@ -6,7 +6,6 @@ BEGIN
 
 	SELECT
 		sess.[Name],
-		GameOver,
 		BoardState,
 		p1.[Name] as Player1,
 		p2.[Name] as Player2

Shogi.Database/Session/Tables/Session.sql

@@ -2,12 +2,12 @@
 (
 	Id			BIGINT NOT NULL PRIMARY KEY IDENTITY,
 	Created		DATETIMEOFFSET NOT NULL DEFAULT SYSDATETIMEOFFSET(),
-	DomainDocument	[session].[JsonDocument] NOT NULL,
-	[Name]		AS JSON_VALUE(DomainDocument, '$.Name') UNIQUE,
 	Player1Id	BIGINT NOT NULL,
 	Player2Id	BIGINT NULL,
+	BoardState	[session].[JsonDocument] NOT NULL,
+	[Name]		AS JSON_VALUE(BoardState, '$.Name') UNIQUE,
 
-	CONSTRAINT [BoardState must be json] CHECK (isjson(DomainDocument)=1),
+	CONSTRAINT [BoardState must be json] CHECK (isjson(BoardState)=1),
 	CONSTRAINT FK_Player1_User FOREIGN KEY (Player1Id) REFERENCES [user].[User] (Id) 
 		ON DELETE CASCADE 
 		ON UPDATE CASCADE,

Shogi.Sockets/Repositories/Dto/SessionDto.cs

@@ -1,5 +1,8 @@
 namespace Shogi.Api.Repositories.Dto
 {
+	/// <summary>
+	/// Useful with Dapper to read from database.
+	/// </summary>
 	public class SessionDto
 	{
 		public string Name { get; set; }

Shogi.Sockets/Repositories/QueryRepository.cs

@@ -1,4 +1,5 @@
 using Dapper;
+using Shogi.Api.Repositories.Dto;
 using Shogi.Contracts.Types;
 using System.Data.SqlClient;
 
@@ -24,7 +25,7 @@ public class QueryRepository : IQueryRespository
 	public async Task<SessionMetadata?> ReadSession(string name)
 	{
 		using var connection = new SqlConnection(connectionString);
-		var results = await connection.QueryAsync<SessionMetadata>(
+		var results = await connection.QueryAsync<SessionDto>(
 			"session.ReadSession",
 			commandType: System.Data.CommandType.StoredProcedure);
 		return results.SingleOrDefault();

Shogi.Sockets/Repositories/SessionRepository.cs

@@ -24,33 +24,14 @@ public class SessionRepository : ISessionRepository
 			"session.CreateSession",
 			new
 			{
-				SessionName = session.Name,
+				InitialBoardStateDocument = initialBoardState,
 				Player1Name = player1,
-				InitialBoardStateDocument = initialBoardState
 			},
 			commandType: CommandType.StoredProcedure);
 	}
-
-	public async Task ReadSession(string name)
-	{
-		using var connection = new SqlConnection(connectionString);
-		var results = await connection.QueryAsync<SessionDto>(
-			"session.ReadSession",
-			commandType: CommandType.StoredProcedure);
-		
-		if (!results.Any())
-		{
-			return null;
-		}
-
-		var dto = results.First();
-		return new Session(
-			name: dto.Name,
-			initialState: JsonSerializer.Deserialize< dto.BoardState)
-	}
 }
 
 public interface ISessionRepository
 {
-	Task CreateSession(ShogiBoard session);
+	Task CreateSession(ShogiBoard session, string player1);
 }