pocztarski

Name:Rafał Pocztarski

Clan:WarsawJS

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

Member Since:Jun 2022

Last Seen:Jun 2025

Profiles:

Following:55

Followers:30

Allies:27

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Progress

Rank:2 kyu

Honor:3,742

Leaderboard Position:#3,153

Honor Percentile:Top 0.442%

Total Completed Kata:431

Languages:

Total Languages Trained:57

Highest Trained:JavaScript (2 kyu)

Most Recent:Python

Up Votes:

Best Practice Solutions:3,469

Clever Solutions:1,296

Comments:4

Contributions

Community:

Comments:23 (0 replies)

Collections:14

Kumite:2 (2 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:3

JavaScript

Rank:2 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:366

Kata Attempts:604

Completed on 1^st Attempt:283

Completed Kata By Rank:

8 Kyu:109

7 Kyu:95

6 Kyu:92

5 Kyu:45

4 Kyu:13

3 Kyu:6

2 Kyu:5

1 Kyu:1

Solution Votes:

Best Practice:105

Clever:149

TypeScript

Rank:4 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:121

Kata Attempts:230

Completed on 1^st Attempt:86

Completed Kata By Rank:

8 Kyu:47

7 Kyu:31

6 Kyu:29

5 Kyu:9

4 Kyu:2

3 Kyu:2

2 Kyu:1

Solution Votes:

Best Practice:24

Clever:82

Go

Rank:4 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:140

Kata Attempts:214

Completed on 1^st Attempt:113

Completed Kata By Rank:

8 Kyu:35

7 Kyu:38

6 Kyu:51

5 Kyu:13

4 Kyu:2

Solution Votes:

Best Practice:245

Clever:390

C

Rank:5 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:56

Kata Attempts:84

Completed on 1^st Attempt:43

Completed Kata By Rank:

8 Kyu:20

7 Kyu:11

6 Kyu:16

5 Kyu:9

Solution Votes:

Best Practice:0

Clever:7

Rust

Rank:5 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:32

Kata Attempts:39

Completed on 1^st Attempt:28

Completed Kata By Rank:

8 Kyu:16

7 Kyu:5

6 Kyu:7

5 Kyu:2

4 Kyu:1

3 Kyu:1

Solution Votes:

Best Practice:294

Clever:68

Python

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:19

Kata Attempts:28

Completed on 1^st Attempt:14

Completed Kata By Rank:

8 Kyu:8

7 Kyu:6

6 Kyu:2

5 Kyu:3

Solution Votes:

Best Practice:1,311

Clever:277

C++

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:19

Kata Attempts:23

Completed on 1^st Attempt:18

Completed Kata By Rank:

8 Kyu:5

7 Kyu:6

6 Kyu:7

5 Kyu:1

Solution Votes:

Best Practice:412

Clever:69

Java

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:16

Kata Attempts:17

Completed on 1^st Attempt:14

Completed Kata By Rank:

8 Kyu:5

7 Kyu:4

6 Kyu:5

5 Kyu:2

Solution Votes:

Best Practice:284

Clever:41

C#

Rank:6 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:13

Kata Attempts:13

Completed on 1^st Attempt:13

Completed Kata By Rank:

8 Kyu:6

7 Kyu:2

6 Kyu:3

5 Kyu:2

Solution Votes:

Best Practice:258

Clever:19

Ruby

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:7

Kata Attempts:7

Completed on 1^st Attempt:6

Completed Kata By Rank:

8 Kyu:3

7 Kyu:1

6 Kyu:2

5 Kyu:1

Solution Votes:

Best Practice:91

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:10

Completed Kata By Rank:

8 Kyu:10

7 Kyu:3

6 Kyu:2

Solution Votes:

Best Practice:3

Clever:5

Lua

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2025

Completed Kata:4

Kata Attempts:5

Completed on 1^st Attempt:3

Completed Kata By Rank:

8 Kyu:1

6 Kyu:2

5 Kyu:1

Solution Votes:

Best Practice:26

Clever:2

CoffeeScript

Rank:7 kyu

First Completed:Jun 2022

Last Completed:Jun 2023

Completed Kata:6

Kata Attempts:6

Completed on 1^st Attempt:6

Completed Kata By Rank:

8 Kyu:2

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:5

Completed Kata By Rank:

8 Kyu:3

7 Kyu:2

5 Kyu:1

Solution Votes:

Best Practice:13

Clever:0

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

PHP

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:1

6 Kyu:2

Solution Votes:

Best Practice:59

Clever:22

Dart

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Feb 2025

Completed Kata:3

Kata Attempts:4

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:2

6 Kyu:1

Solution Votes:

Best Practice:35

Clever:4

Groovy

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Feb 2025

Completed Kata:2

Kata Attempts:2

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:1

6 Kyu:1

Solution Votes:

Best Practice:5

Clever:0

Haskell

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2022

Completed Kata:4

Kata Attempts:6

Completed on 1^st Attempt:1

Completed Kata By Rank:

8 Kyu:3

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:4

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:59

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:6

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

SQL

Rank:8 kyu

First Completed:Jun 2022

Last Completed:Jun 2023

Completed Kata:3

Kata Attempts:3

Completed on 1^st Attempt:2

Completed Kata By Rank:

8 Kyu:3

Solution Votes:

Best Practice:0

Clever:9

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

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:7

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:29

Clever:2

Julia

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:4

Clever:3

Crystal

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:12

Clever:3

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

Racket

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:12

Reason

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: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:1

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

Kotlin

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:18

Clever:3

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: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

Swift

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:10

Clever:4

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:0

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:0

Completed Kata By Rank:

8 Kyu:1

Solution Votes:

Best Practice:3

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:1

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:0

D

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:1

CommonLisp

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

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