pocztarski

Name:Rafał Pocztarski

Clan:WarsawJS

Skills:typescript, javascript, node.js, go, golang, backend, microservices

Member Since:Jun 2022

Last Seen:Aug 2026

Profiles:

Following:56

Followers:34

Allies:28

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Progress

Rank:2 kyu

Honor:3,781

Leaderboard Position:#3,362

Honor Percentile:Top 0.440%

Total Completed Kata:439

Languages:

Total Languages Trained:57

Highest Trained:JavaScript (2 kyu)

Most Recent:Swift

Up Votes:

Best Practice Solutions:3,738

Clever Solutions:1,434

Comments:4

Contributions

Community:

Comments:23 (0 replies)

Collections:20

Kumite:4 (4 Started)

Translations:0 (0 approved)

Streaks

Most in a Single Day:

Completed Kata:129

Date:Jun 21, 2022

Most in a Single Week:

Completed Kata:175

Ended On:Jun 26, 2022

Most Consecutive Days:

Most Number of days:11

Ended On:May 31, 2023

Current Streak:0

JavaScript

Rank:2 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:372

Kata Attempts:617

Completed on 1^st Attempt:284

Completed Kata By Rank:

8 Kyu:110

7 Kyu:100

6 Kyu:92

5 Kyu:45

4 Kyu:13

3 Kyu:6

2 Kyu:5

1 Kyu:1

Solution Votes:

Best Practice:113

Clever:158

TypeScript

Rank:4 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:124

Kata Attempts:234

Completed on 1^st Attempt:86

Completed Kata By Rank:

8 Kyu:48

7 Kyu:33

6 Kyu:29

5 Kyu:9

4 Kyu:2

3 Kyu:2

2 Kyu:1

Solution Votes:

Best Practice:26

Clever:95

Go

Rank:4 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:146

Kata Attempts:224

Completed on 1^st Attempt:117

Completed Kata By Rank:

8 Kyu:38

7 Kyu:39

6 Kyu:53

5 Kyu:13

4 Kyu:2

Solution Votes:

Best Practice:275

Clever:432

C

Rank:5 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:60

Kata Attempts:91

Completed on 1^st Attempt:46

Completed Kata By Rank:

8 Kyu:22

7 Kyu:12

6 Kyu:17

5 Kyu:9

Solution Votes:

Best Practice:0

Clever:9

Rust

Rank:5 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:33

Kata Attempts:40

Completed on 1^st Attempt:29

Completed Kata By Rank:

8 Kyu:17

7 Kyu:5

6 Kyu:7

5 Kyu:2

4 Kyu:1

3 Kyu:1

Solution Votes:

Best Practice:329

Clever:87

Python

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:22

Kata Attempts:31

Completed on 1^st Attempt:15

Completed Kata By Rank:

8 Kyu:10

7 Kyu:6

6 Kyu:2

5 Kyu:4

Solution Votes:

Best Practice:1,416

Clever:306

C++

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:25

Kata Attempts:31

Completed on 1^st Attempt:19

Completed Kata By Rank:

8 Kyu:9

7 Kyu:7

6 Kyu:8

5 Kyu:1

Solution Votes:

Best Practice:436

Clever:74

Java

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:19

Kata Attempts:21

Completed on 1^st Attempt:18

Completed Kata By Rank:

8 Kyu:7

7 Kyu:5

6 Kyu:5

5 Kyu:2

Solution Votes:

Best Practice:297

Clever:48

C#

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:16

Kata Attempts:16

Completed on 1^st Attempt:14

Completed Kata By Rank:

8 Kyu:8

7 Kyu:3

6 Kyu:3

5 Kyu:2

Solution Votes:

Best Practice:268

Clever:20

Ruby

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:8

Kata Attempts:8

Completed on 1^st Attempt:8

Completed Kata By Rank:

8 Kyu:4

7 Kyu:1

6 Kyu:2

5 Kyu:1

Solution Votes:

Best Practice:98

Clever:29

NASM

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:15

Kata Attempts:26

Completed on 1^st Attempt:11

Completed Kata By Rank:

8 Kyu:10

7 Kyu:3

6 Kyu:2

Solution Votes:

Best Practice:3

Clever:6

Lua

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:6

Kata Attempts:7

Completed on 1^st Attempt:6

Completed Kata By Rank:

8 Kyu:3

6 Kyu:2

5 Kyu:1

Solution Votes:

Best Practice:26

Clever:2

CoffeeScript

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:7

Kata Attempts:7

Completed on 1^st Attempt:7

Completed Kata By Rank:

8 Kyu:3

7 Kyu:3

5 Kyu:1

Solution Votes:

Best Practice:21

Clever:4

Shell

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:6

Kata Attempts:7

Completed on 1^st Attempt:4

Completed Kata By Rank:

8 Kyu:3

7 Kyu:2

5 Kyu:1

Solution Votes:

Best Practice:13

Clever:0

PHP

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:5

Kata Attempts:6

Completed on 1^st Attempt:4

Completed Kata By Rank:

8 Kyu:3

6 Kyu:2

Solution Votes:

Best Practice:59

Clever:22

Perl

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:6

Kata Attempts:6

Completed on 1^st Attempt:4

Completed Kata By Rank:

8 Kyu:3

7 Kyu:2

6 Kyu:1

Dart

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:5

Kata Attempts:6

Completed on 1^st Attempt:5

Completed Kata By Rank:

8 Kyu:3

7 Kyu:1

6 Kyu:1

Solution Votes:

Best Practice:40

Clever:5

Groovy

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:3

Kata Attempts:3

Completed on 1^st Attempt:3

Completed Kata By Rank:

8 Kyu:2

6 Kyu:1

Solution Votes:

Best Practice:6

Clever:0

Haskell

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:5

Kata Attempts:7

Completed on 1^st Attempt:3

Completed Kata By Rank:

8 Kyu:4

7 Kyu:1

Solution Votes:

Best Practice:3

Clever:2

OCaml

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Oct 2023

Completed Kata:4

Kata Attempts:5

Completed on 1^st Attempt:4

Completed Kata By Rank:

8 Kyu:4

Solution Votes:

Best Practice:5

Clever:1

Clojure

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2023

Completed Kata:4

Kata Attempts:4

Completed on 1^st Attempt:3

Completed Kata By Rank:

8 Kyu:4

Solution Votes:

Best Practice:21

Clever:63

Kotlin

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:3

Kata Attempts:3

Completed on 1^st Attempt:3

Completed Kata By Rank:

8 Kyu:2

7 Kyu:1

Solution Votes:

Best Practice:18

Clever:3

BF

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:3

Kata Attempts:3

Completed on 1^st Attempt:3

Completed Kata By Rank:

8 Kyu:3

Solution Votes:

Best Practice:14

Clever:7

Forth

Rank:8 kyu

First Completed:Jun 2022

Last Completed:May 2023

Completed Kata:3

Kata Attempts:4

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:3

Solution Votes:

Best Practice:17

Clever:0

Julia

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:3

Kata Attempts:3

Completed on 1^st Attempt:3

Completed Kata By Rank:

8 Kyu:3

Solution Votes:

Best Practice:5

Clever:3

Crystal

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:3

Kata Attempts:3

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:3

Solution Votes:

Best Practice:11

Clever:3

SQL

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2023

Completed Kata:3

Kata Attempts:3

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:3

Solution Votes:

Best Practice:0

Clever:9

Racket

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:3

Kata Attempts:3

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:3

Solution Votes:

Best Practice:14

Clever:13

CFML

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:1

7 Kyu:1

Solution Votes:

Best Practice:3

Clever:0

D

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Aug 2026

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:1

7 Kyu:1

Solution Votes:

Best Practice:1

Clever:1

VB

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:2

Kata Attempts:3

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:11

Clever:1

Swift

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:2

Kata Attempts:3

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:10

Clever:4

Raku

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2023

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:2

Prolog

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:2

Kata Attempts:3

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:9

Clever:0

Elm

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:5

Clever:0

R

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:32

Clever:2

Scala

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:10

Clever:13

Reason

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:8

Clever:1

Elixir

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:11

Clever:2

RISC-V

Rank:8 kyu

First Completed:May 2023

Last Completed:May 2023

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:2

Clever:0

Idris

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:1

Clever:0

Haxe

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:8

Clever:0

Fortran

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:3

Clever:1

Coq

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:2

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:1

Solidity

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:2

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:15

Clever:0

PureScript

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:7

Clever:3

PowerShell

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:20

Clever:1

Objective-C

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:6

Clever:0

Factor

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Nim

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:0

Clever:1

Agda

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:5

Clever:2

Pascal

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:8

Clever:0

λ Calculus

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:2

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:1

F#

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:11

Clever:0

Erlang

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:9

Clever:1

CommonLisp

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:0

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:7

Clever:0

COBOL

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:1

Kata Attempts:1

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:2

Clever:0