diff --git a/SystemKonkursow/4.2.1/angular/src/app/competition-detail/competition-detail.component.ts b/SystemKonkursow/4.2.1/angular/src/app/competition-detail/competition-detail.component.ts
index 9303aa6..6bb0100 100644
--- a/SystemKonkursow/4.2.1/angular/src/app/competition-detail/competition-detail.component.ts
+++ b/SystemKonkursow/4.2.1/angular/src/app/competition-detail/competition-detail.component.ts
@@ -3,12 +3,14 @@ import { appModuleAnimation } from '@shared/animations/routerTransition';
 import { AppComponentBase } from '@shared/app-component-base';
 import { Subscription } from 'rxjs/Rx';
 import { ActivatedRoute } from '@angular/router';
+import { mergeMap } from 'rxjs/operators';
 import { finalize } from 'rxjs/operators';
 import { forkJoin } from 'rxjs';
 import { CompetitionServiceProxy, 
     CompetitionDto, 
     QuestionDto, 
-    QuestionOptionDto } from '@shared/service-proxies/service-proxies';
+    QuestionOptionDto,
+    CreateRankingPositionDto } from '@shared/service-proxies/service-proxies';
 
 @Component({
     templateUrl: './competition-detail.component.html',
@@ -19,6 +21,7 @@ export class CompetitionDetailComponent extends AppComponentBase implements OnIn
 
     private paramSubscription: Subscription;
     private routeSubscription: Subscription;
+    private solveSubscription: Subscription;
     
     public competitionId: number;
     public competition: CompetitionDto = null;
@@ -121,7 +124,23 @@ export class CompetitionDetailComponent extends AppComponentBase implements OnIn
             ) points += 1; 
         });
 
-        console.log('Punkty: ' + points);
+        console.log('Points: ' + points);
+        let rankingPosition = new CreateRankingPositionDto();
+
+        rankingPosition.competitionId = this.competitionId;
+        rankingPosition.points = points;
+
+        this.setBusy(this.competitionDetailAreaId);
+
+        this.solveSubscription = this._competitionService.solveCompetition(rankingPosition)
+            .pipe(mergeMap((result: number) => {
+                const solveCompetitionStream = this._competitionService.canSolveCompetition(this.competitionId);
+                return solveCompetitionStream.pipe(finalize(() => { this.clearBusy(this.competitionDetailAreaId); }));
+            }))
+            .subscribe((data: boolean) => {
+                this.canSolveCompetition = data; 
+            });
+
         this.mode = 'result';
     }
 
@@ -133,6 +152,10 @@ export class CompetitionDetailComponent extends AppComponentBase implements OnIn
         if (this.routeSubscription) {
             this.routeSubscription.unsubscribe();
         }
+
+        if (this.solveSubscription) {
+            this.solveSubscription.unsubscribe();
+        }
     }
 
 }
\ No newline at end of file
diff --git a/SystemKonkursow/4.2.1/angular/src/shared/service-proxies/service-proxies.ts b/SystemKonkursow/4.2.1/angular/src/shared/service-proxies/service-proxies.ts
index 37bebd7..2b5d962 100644
--- a/SystemKonkursow/4.2.1/angular/src/shared/service-proxies/service-proxies.ts
+++ b/SystemKonkursow/4.2.1/angular/src/shared/service-proxies/service-proxies.ts
@@ -329,6 +329,62 @@ export class CompetitionServiceProxy {
         return _observableOf<CompetitionDto>(<any>null);
     }
 
+    /**
+     * @input (optional) 
+     * @return Success
+     */
+    solveCompetition(input: CreateRankingPositionDto | null | undefined): Observable<number> {
+        let url_ = this.baseUrl + "/api/services/app/Competition/SolveCompetition";
+        url_ = url_.replace(/[?&]$/, "");
+
+        const content_ = JSON.stringify(input);
+
+        let options_ : any = {
+            body: content_,
+            observe: "response",
+            responseType: "blob",
+            headers: new HttpHeaders({
+                "Content-Type": "application/json", 
+                "Accept": "application/json"
+            })
+        };
+
+        return this.http.request("post", url_, options_).pipe(_observableMergeMap((response_ : any) => {
+            return this.processSolveCompetition(response_);
+        })).pipe(_observableCatch((response_: any) => {
+            if (response_ instanceof HttpResponseBase) {
+                try {
+                    return this.processSolveCompetition(<any>response_);
+                } catch (e) {
+                    return <Observable<number>><any>_observableThrow(e);
+                }
+            } else
+                return <Observable<number>><any>_observableThrow(response_);
+        }));
+    }
+
+    protected processSolveCompetition(response: HttpResponseBase): Observable<number> {
+        const status = response.status;
+        const responseBlob = 
+            response instanceof HttpResponse ? response.body : 
+            (<any>response).error instanceof Blob ? (<any>response).error : undefined;
+
+        let _headers: any = {}; if (response.headers) { for (let key of response.headers.keys()) { _headers[key] = response.headers.get(key); }};
+        if (status === 200) {
+            return blobToText(responseBlob).pipe(_observableMergeMap(_responseText => {
+            let result200: any = null;
+            let resultData200 = _responseText === "" ? null : JSON.parse(_responseText, this.jsonParseReviver);
+            result200 = resultData200 !== undefined ? resultData200 : <any>null;
+            return _observableOf(result200);
+            }));
+        } else if (status !== 200 && status !== 204) {
+            return blobToText(responseBlob).pipe(_observableMergeMap(_responseText => {
+            return throwException("An unexpected server error occurred.", status, _responseText, _headers);
+            }));
+        }
+        return _observableOf<number>(<any>null);
+    }
+
     /**
      * @competitionId (optional) 
      * @return Success
@@ -2508,6 +2564,53 @@ export interface IQuestionOptionDto {
     id: number | undefined;
 }
 
+export class CreateRankingPositionDto implements ICreateRankingPositionDto {
+    competitionId: number | undefined;
+    points: number | undefined;
+
+    constructor(data?: ICreateRankingPositionDto) {
+        if (data) {
+            for (var property in data) {
+                if (data.hasOwnProperty(property))
+                    (<any>this)[property] = (<any>data)[property];
+            }
+        }
+    }
+
+    init(data?: any) {
+        if (data) {
+            this.competitionId = data["competitionId"];
+            this.points = data["points"];
+        }
+    }
+
+    static fromJS(data: any): CreateRankingPositionDto {
+        data = typeof data === 'object' ? data : {};
+        let result = new CreateRankingPositionDto();
+        result.init(data);
+        return result;
+    }
+
+    toJSON(data?: any) {
+        data = typeof data === 'object' ? data : {};
+        data["competitionId"] = this.competitionId;
+        data["points"] = this.points;
+        return data; 
+    }
+
+    clone(): CreateRankingPositionDto {
+        const json = this.toJSON();
+        let result = new CreateRankingPositionDto();
+        result.init(json);
+        return result;
+    }
+}
+
+export interface ICreateRankingPositionDto {
+    competitionId: number | undefined;
+    points: number | undefined;
+}
+
 export class ChangeUiThemeInput implements IChangeUiThemeInput {
     theme: string;
 
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/CompetitionAppService.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/CompetitionAppService.cs
index 9c9e6a2..7c85371 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/CompetitionAppService.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/CompetitionAppService.cs
@@ -18,13 +18,15 @@ namespace SystemKonkursow.Competition.CompetitionCategory
         private readonly IRepository<Domain.QuestionOption, int> _questionOptionRepository;
         private readonly UserManager _userManager;
         private readonly IRepository<Domain.Participant, int> _participantRepository;
+        private readonly IRepository<Domain.RankingPosition, int> _rankingPositionRepository;
 
         public CompetitionAppService(IRepository<Domain.CompetitionCategory, int> competitionCategoryRepository,
             IRepository<Domain.Competition, long> competitionRepository,
             IRepository<Domain.Question, int> questionRepository,
             IRepository<Domain.QuestionOption, int> questionOptionRepository,
             UserManager userManager,
-            IRepository<Domain.Participant, int> participantRepository)
+            IRepository<Domain.Participant, int> participantRepository,
+            IRepository<Domain.RankingPosition, int> rankingPositionRepository)
         {
             _competitionCategoryRepository = competitionCategoryRepository;
             _competitionRepository = competitionRepository;
@@ -32,6 +34,7 @@ namespace SystemKonkursow.Competition.CompetitionCategory
             _questionOptionRepository = questionOptionRepository;
             _userManager = userManager;
             _participantRepository = participantRepository;
+            _rankingPositionRepository = rankingPositionRepository;
         }
 
         [AbpAuthorize]
@@ -123,6 +126,20 @@ namespace SystemKonkursow.Competition.CompetitionCategory
             return mappedObject;
         }
 
+        [AbpAuthorize]
+        public async Task<int> SolveCompetition(CreateRankingPositionDto input)
+        {
+            var user = await GetCurrentUserAsync();
+
+            var mappedRankingPosition = ObjectMapper.Map<Domain.RankingPosition>(input);
+
+            mappedRankingPosition.UserId = user.Id;
+
+            var newRankingPositionId = await _rankingPositionRepository.InsertAndGetIdAsync(mappedRankingPosition);
+
+            return newRankingPositionId;
+        }
+
         [AbpAuthorize]
         public async Task<bool> CanSolveCompetition(int competitionId)
         {
@@ -143,6 +160,13 @@ namespace SystemKonkursow.Competition.CompetitionCategory
                     return false;
                 }
 
+                var rankingPosition = await _rankingPositionRepository.GetAll().Where(t => t.UserId == user.Id).FirstOrDefaultAsync();
+
+                if (null != rankingPosition)
+                {
+                    return false;
+                }
+
                 return true;
 
             }
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/Dto/CompetitionCategoryMapProfile.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/Dto/CompetitionCategoryMapProfile.cs
index 566a0d8..bc7b293 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/Dto/CompetitionCategoryMapProfile.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/Dto/CompetitionCategoryMapProfile.cs
@@ -22,6 +22,8 @@ namespace SystemKonkursow.Competition.CompetitionCategory.Dto
 
             CreateMap<Domain.Competition, CompetitionDto>()
                 .ForMember(dest => dest.CreatorName, opt => opt.MapFrom(src => src.Creator.UserName));
+
+            CreateMap<CreateRankingPositionDto, Domain.RankingPosition>();
         }
     }
 }
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/Dto/CreateRankingPositionDto.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/Dto/CreateRankingPositionDto.cs
new file mode 100644
index 0000000..560e2e4
--- /dev/null
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Application/Competition/CompetitionCategory/Dto/CreateRankingPositionDto.cs
@@ -0,0 +1,9 @@
+namespace SystemKonkursow.Competition.CompetitionCategory.Dto
+{
+    public class CreateRankingPositionDto
+    {
+        public long CompetitionId { get; set; }
+
+        public int Points { get; set; }
+    }
+}
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Domain/RankingPosition.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Domain/RankingPosition.cs
new file mode 100644
index 0000000..bc4c3da
--- /dev/null
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.Core/Domain/RankingPosition.cs
@@ -0,0 +1,22 @@
+using Abp.Domain.Entities;
+using System.ComponentModel.DataAnnotations.Schema;
+using SystemKonkursow.Authorization.Users;
+
+namespace SystemKonkursow.Domain
+{
+    [Table("RankingPositions")]
+    public class RankingPosition : Entity<int>
+    {
+        public long UserId { get; set; }
+
+        public long CompetitionId { get; set; }
+
+        public int Points { get; set; }
+
+        [ForeignKey(nameof(UserId))]
+        public virtual User User { get; set; }
+
+        [ForeignKey(nameof(CompetitionId))]
+        public virtual Competition Competition { get; set; }
+    }
+}
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/SystemKonkursowDbContext.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/SystemKonkursowDbContext.cs
index 94b77b1..3cee3ff 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/SystemKonkursowDbContext.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/EntityFrameworkCore/SystemKonkursowDbContext.cs
@@ -28,5 +28,7 @@ namespace SystemKonkursow.EntityFrameworkCore
 
         public DbSet<Domain.QuestionOption> QuestionOptions { get; set; }
 
+        public DbSet<Domain.RankingPosition> RankingPositions { get; set; }
+
     }
 }
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/Migrations/SystemKonkursowDbContextModelSnapshot.cs b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/Migrations/SystemKonkursowDbContextModelSnapshot.cs
index 38a3d2c..7daaed2 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/Migrations/SystemKonkursowDbContextModelSnapshot.cs
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/Migrations/SystemKonkursowDbContextModelSnapshot.cs
@@ -1134,6 +1134,27 @@ namespace SystemKonkursow.Migrations
                     b.ToTable("QuestionOptions");
                 });
 
+            modelBuilder.Entity("SystemKonkursow.Domain.RankingPosition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+                    b.Property<long>("CompetitionId");
+
+                    b.Property<int>("Points");
+
+                    b.Property<long>("UserId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CompetitionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RankingPositions");
+                });
+
             modelBuilder.Entity("SystemKonkursow.MultiTenancy.Tenant", b =>
                 {
                     b.Property<int>("Id")
@@ -1379,6 +1400,19 @@ namespace SystemKonkursow.Migrations
                         .OnDelete(DeleteBehavior.Cascade);
                 });
 
+            modelBuilder.Entity("SystemKonkursow.Domain.RankingPosition", b =>
+                {
+                    b.HasOne("SystemKonkursow.Domain.Competition", "Competition")
+                        .WithMany()
+                        .HasForeignKey("CompetitionId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.HasOne("SystemKonkursow.Authorization.Users.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
             modelBuilder.Entity("SystemKonkursow.MultiTenancy.Tenant", b =>
                 {
                     b.HasOne("SystemKonkursow.Authorization.Users.User", "CreatorUser")
diff --git a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/SystemKonkursow.EntityFrameworkCore.csproj b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/SystemKonkursow.EntityFrameworkCore.csproj
index 68c6fa9..dcbd57e 100644
--- a/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/SystemKonkursow.EntityFrameworkCore.csproj
+++ b/SystemKonkursow/4.2.1/aspnet-core/src/SystemKonkursow.EntityFrameworkCore/SystemKonkursow.EntityFrameworkCore.csproj
@@ -25,7 +25,4 @@
   <ItemGroup>
     <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Migrations\" />
-  </ItemGroup>
 </Project>
\ No newline at end of file