pocztarski

Name:Rafał Pocztarski

Clan:WarsawJS

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

Member Since:Jun 2022

Last Seen:Nov 2025

Profiles:

Following:56

Followers:33

Allies:28

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Progress

Rank:2 kyu

Honor:3,771

Leaderboard Position:#3,215

Honor Percentile:Top 0.438%

Total Completed Kata:438

Languages:

Total Languages Trained:57

Highest Trained:JavaScript (2 kyu)

Most Recent:C

Up Votes:

Best Practice Solutions:3,573

Clever Solutions:1,361

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:Jun 2025

Completed Kata:371

Kata Attempts:616

Completed on 1^st Attempt:269

Completed Kata By Rank:

8 Kyu:110

7 Kyu:99

6 Kyu:92

5 Kyu:45

4 Kyu:13

3 Kyu:6

2 Kyu:5

1 Kyu:1

Solution Votes:

Best Practice:108

Clever:154

TypeScript

Rank:4 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:123

Kata Attempts:233

Completed on 1^st Attempt:85

Completed Kata By Rank:

8 Kyu:48

7 Kyu:32

6 Kyu:29

5 Kyu:9

4 Kyu:2

3 Kyu:2

2 Kyu:1

Solution Votes:

Best Practice:25

Clever:91

Go

Rank:4 kyu

First Completed:Jun 2022

Last Completed:Jul 2025

Completed Kata:145

Kata Attempts:223

Completed on 1^st Attempt:113

Completed Kata By Rank:

8 Kyu:38

7 Kyu:38

6 Kyu:53

5 Kyu:13

4 Kyu:2

Solution Votes:

Best Practice:255

Clever:406

C

Rank:5 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:59

Kata Attempts:90

Completed on 1^st Attempt:44

Completed Kata By Rank:

8 Kyu:22

7 Kyu:11

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:31

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:307

Clever:77

Python

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:22

Kata Attempts:31

Completed on 1^st Attempt:16

Completed Kata By Rank:

8 Kyu:10

7 Kyu:6

6 Kyu:2

5 Kyu:4

Solution Votes:

Best Practice:1,355

Clever:286

C++

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jul 2025

Completed Kata:24

Kata Attempts:30

Completed on 1^st Attempt:20

Completed Kata By Rank:

8 Kyu:9

7 Kyu:6

6 Kyu:8

5 Kyu:1

Solution Votes:

Best Practice:425

Clever:72

Java

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jul 2025

Completed Kata:18

Kata Attempts:20

Completed on 1^st Attempt:16

Completed Kata By Rank:

8 Kyu:7

7 Kyu:4

6 Kyu:5

5 Kyu:2

Solution Votes:

Best Practice:292

Clever:47

C#

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jul 2025

Completed Kata:15

Kata Attempts:15

Completed on 1^st Attempt:14

Completed Kata By Rank:

8 Kyu:8

7 Kyu:2

6 Kyu:3

5 Kyu:2

Solution Votes:

Best Practice:264

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:6

Completed Kata By Rank:

8 Kyu:4

7 Kyu:1

6 Kyu:2

5 Kyu:1

Solution Votes:

Best Practice:93

Clever:28

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:20

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:6

Completed Kata By Rank:

8 Kyu:3

7 Kyu:2

6 Kyu:1

Dart

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:4

Kata Attempts:5

Completed on 1^st Attempt:4

Completed Kata By Rank:

8 Kyu:3

6 Kyu:1

Solution Votes:

Best Practice:35

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:5

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:3

Completed Kata By Rank:

8 Kyu:4

Solution Votes:

Best Practice:5

Clever:0

Clojure

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2023

Completed Kata:4

Kata Attempts:4

Completed on 1^st Attempt:4

Completed Kata By Rank:

8 Kyu:4

Solution Votes:

Best Practice:19

Clever:60

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:13

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:4

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:12

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:3

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:1

Completed Kata By Rank:

8 Kyu:3

Solution Votes:

Best Practice:10

Clever:12

Kotlin

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:18

Clever:3

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:10

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:2

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:8

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:1

Completed Kata By Rank:

8 Kyu:2

Solution Votes:

Best Practice:30

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:0

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:1

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:7

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:13

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:6

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:16

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:5

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

CFML

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:0

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:4

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:1

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:7

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:8

Clever:1

D

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:1

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:6

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