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BGGP6 Recap │ █ │
~ Binary Golf Association └───────────────────█ ──┘
─── Intro ──────────────────────────────────────────────────────────────────────
This year's BGGP theme was
RECYCLE.
The goal was to let golfers explore combinations of previous BGGP challenges.
Additional points were awarded for how many BGGP challenge criteria a
given entry met.
Golfers also had the option of simply trying to find the smallest thing that
prints or displays the number 6 in some way.
[ Totals by Challenge ]
This year had 36
entries.
1 - Palindromes - 6 entries
2 - Polyglots - 15 entries
3 - Crashes - 8 entries
4 - Self Rep - 11 entries
5 - Download - 16 entries
6 - Print 6 - 33 entries
─── 1. Palindromes ─────────────────────────────────────────────────────────────
Palindrome files were the first challenge for BGGP, and one of the hardest ones,
requiring byte level precision by the entry authors.
6 entries were palindromes, including the highest scoring BGGP6 entries.
mattpass's 5 byte shell script demonstrated an elegant palindromic loader that
leverages command line arguments to execute additional code.
dominikr's ELF and COM polyglot palindrome entry was awarded bonus points for
merging a PR to fix bugs.
| Size | Author | Type | BGGP | Score | Issue |
| ---- | ----------- | ------------------- | ----------- | ----- | ----- |
| 0223 | dominikr | ELF COM | 1 2 3 4 5 6 | 6433 |
170 |
| 0179 | mattpass | .sh, .sql, .zip | 1 2 3 4 5 6 | 5453 |
165 |
| 0005 | mattpass | .sh | 1 . . . 5 6 | 4859 |
151 |
| 0055 | mauke | COM, .pl, .sh, Make | 1 2 . . . . | 4553 |
146 |
| 0472 | xcellerator | ELF, DICOM Image | 1 2 . . . 6 | 4392 |
167 |
| 0228 | febnug | ELF | 1 . . . . 6 | 4380 |
157 |
─── 2. Polyglots ───────────────────────────────────────────────────────────────
15 entries were polyglots
15 entries met the BGGP2 Polyglot challenge criteria. Since BGGP2, polyglots
have become a common feature of BGGP entries.
The entry with the most files in a polyglot was a tie with 4 each:
- deluks did an ELF, PDF, RAR and Zip polyglot
- mauke did a COM, Make, Perl, Shell polyglot that was also a palindrome!
Here is a breakdown of BGGP6 polyglot entries by file type:
COM deb DICOM ELF js make pbm pdf pl ps1 rar sh sql txt zip
x───│───│─────│───│──x────│───│───x──│───│───x──│───│───│──
│───x───│─────│───│──│────│───│───│──│───│───x──│───│───│──
│───│───x─────x───│──│────│───│───│──│───│───│──│───│───│──
│───│───│─────x───│──│────│───x───│──│───│───│──│───│───│──
│───│───│─────x───x──│────│───x───│──│───│───│──│───│───│──
│───│───│─────x───│──│────│───x───│──│───x───│──│───│───x──
│───│───│─────x───│──│────│───│───│──│───│───x──│───│───│──
│───│───│─────│───│──│────x───│───│──│───│───x──│───│───│──
│───│───│─────│───│──│────│───│───│──x───│───│──│───x───│──
│───│───│─────│───│──│────│───│───x──│───│───x──│───│───│──
│───│───│─────│───│──│────│───│───│──│───│───x──│───│───x──
See the repo's polyglot section for other entry info!
─── 3. Crashes ─────────────────────────────────────────────────────────────────
8 entries met the BGGP3 Crash challenge criteria.
The smallest was q3w3e3 with a 24 byte shell script. The second smallest was
also q3w3e3 with a 26 byte shell and perl polyglot. The third smallest was
dominikr with a 29 byte perl crash.
q3w3e3 found multiple ways to crash curl
- sh 24 bytes -
169
- sh pl 26 bytes -
171
- sh pl 44 bytes -
172
dominikr had 3 crashes
- perl 29 bytes -
168
- elf32 154 bytes no cli args -
177
- elf, com 223 bytes -
170
bah figured out how to crash bash via inputrc keybinds in 126 bytes (
166)
mattpass's 179 byte Shell/Zip polyglot crashed itself while satisfying all 6
challenges. (
165)
─── 4. Self Rep ────────────────────────────────────────────────────────────────
11 entries met the BGGP4 Self Replication challenge criteria.
The smallest was q3w3e3 with a 24 byte shell script. The second smallest was
also q3w3e3 with a 26 byte shell and perl polyglot. The third smallest was yet
again q3w3e3 with a 44 byte shell and perl polyglot.
bah
- curlrc 62 bytes -
154
- inputrc 126 bytes -
166
dominikr
- elf32 45 bytes with cli args -
174
- elf32 154 bytes no cli args -
177
- deb, sh 182 bytes -
175
- elf, com 223 bytes -
170
ilya
- elf pdf 512 bytes -
180
mattpass
- sh zip 179 bytes -
165
q3w3e3
- sh 24 bytes -
169
- sh pl 26 bytes -
171
- sh pl 44 bytes -
172
─── 5. Download ────────────────────────────────────────────────────────────────
16 entries met the BGGP5 Download criteria.
The smallest was mattpass's 5 byte shell script using cli args. The smallest
without cli args was q3w3e3 with a 24 byte shell script.
bah
- curlrc 62 bytes -
154
- inputrc 126 bytes -
166
dominikr
- elf32 45 bytes with cli args -
174
- elf32 71 bytes no cli args -
173
- elf32 154 bytes - built with custom compiler -
177
- tar 148 bytes -
178
- deb, sh polyglot 223 bytes -
175
- elf com 223 bytes -
170
febnug
- elf64 1696 bytes
mattpass
- sh 5 bytes with cli args -
151
- sh zip 179 bytes -
165
- sh sql zip 159 bytes -
164
q3w3e3
- sh 24 bytes -
169
- sh pl 26 bytes -
171
- sh pl 44 bytes -
172
x0
- sh 86 bytes with args -
155
─── 6. RECYCLE ─────────────────────────────────────────────────────────────────
33 entries met the BGGP6 challenge criteria to print 6 as small as possible.
Since this was the most popular entry, you should just check out the repo
for more info :)
─── Special Shouts ─────────────────────────────────────────────────────────────
/// New Files We Haven't Seen Before ///////////////////////////////////////////
Every year, golfers explore file types that haven't been seen in BGGP.
curlrc -- bah's entry showed us how to use curlrc to execute commands
DICOM -- xcellerator combined a DICOM medical image with a RISC-V ELF
erofs -- bilger used free space to include some sweet art in the base64,
see below!
inputrc -- bah came through with another interesting rc file that can
inject commands into bash, neat!
NetPBM -- ackmage investigated the NetPBM format variants and created a
polyglot that works on MacOS
Python Pip -- dtm shared some abilities of pip packages that can only be
described as "pure evil"
RDOFF -- A long lost object file format used by nasm revived by netspooky
Wireshark -- netspooky created a tiny and annoying dissector that spams 6
Dissector
/// Coolest Visual Payloads ////////////////////////////////////////////////////
bilger EROFS base64 including the letters "BGGP" spelled out in "6"s: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's loader - See Repo
xcel's grimey DICOM - See Repo
/// Most Cursed Code ///////////////////////////////////////////////////////////
OwOday's entry really demonstrates the power of 6:
#include <stdint.h>
#define six (6)
#define s6 (six-(six/six))
#define ssssss6 (six-six)
#define sssss6 (six-s6)
#define ss6 (s6-sssss6)
#define ssss6 (six-ss6)
#define sss6 (ss6-sssss6)
#define s6xx (ss6+sss6)
#define s6xxxx (ss6+s6)
#define s6xxx (s6xxxx-sssss6)
#define ss66 (six+ss6)
#define s66x (six+six)
#define s66xx (six+s6xx)
#define s66 (six+s6)
#define ss666 (six+ss66)
#define sx(x) #x
#define s(x) sx(x)
#define ______s6x (ss666*ss666*ss666*ss666*ss666*ss666)
#define ____s6x (ss666*ss666*ss666*ss666)
#define __s6x (ss666*ss666)
#define siix (((s6xx*s6*six)*(______s6x))+((ss666*s6xxx)*(____s6x))+(ss6*s6xxx)) //0xd2800020
#define siiix (((ss666)*(______s6x))+(((s6xxx*six*ss6)+1))) //0x100000c1
#define siiiix (((s6xx*s6*six)*(______s6x))+((ss666*s6xxx)*(____s6x))+((six*s66))) //0xd2800042
#define siiiiix (((s6xx*s6*six)*(______s6x))+((ss666*s6xxx)*(____s6x))+((ss666*s6xxxx))) //0xd2800090
#define siiiiiix ((((six*ss66*ss6)+ssss6)*(______s6x))+((s6xxx*s6*ss6)*____s6x)+((ss6*ss666)*__s6x)+ss666) //0xf2a04010
#define siiiiiiix ((((s6xx*s6*six)+(ssss6))*______s6x) + (ss666*__s6x) + (sssss6) ) //0xd4001001
#define siiiiiiiix ((((six*s6xx*s6)+ss6)*(______s6x))+(((ss666+sss6)*s6)*____s6x)+(sss6*__s6x)+(s66x*ss666))//0xd65f03c0
__asm__(".text\n.p2align 2\n.global __6\n__6:\n\t"
".inst " s(siix) "\n\t"
".inst " s(siiix) "\n\t"
".inst " s(siiiix) "\n\t"
".inst " s(siiiiix) "\n\t"
".inst " s(siiiiiix) "\n\t"
".inst " s(siiiiiiix) "\n\t"
".inst " s(siiiiiiiix) "\n\t"
".p2align 2\n1: .ascii \"6\\n\"\n");void _6(void);int main(void){_6();return ssssss6;}
/// Top 4 Smallest /////////////////////////////////////////////////////////////
The honor of smallest entry was a tie between int0x80 and squiblydoo,
both providing 1 byte entries. squiblydoo was able to demonstrate that the
single byte "6" was a valid powershell script as well, allowing them to grab
an additional 256 points to break the tie.
continue's Forth entry at just 3 bytes also demonstrates a very minimal approach
to printing with the Forth language
mattpass's 5 byte shell script demonstrated an elegant palindromic loader that
leverages command line arguments to execute additional code.
| Size | Author | Type | BGGP | Score | Issue |
| ---- | ---------- | ---------- | ----------- | ----- | ----- |
| 0001 | squiblydoo | .ps1, .txt | . 2 . . . 6 | 4351 |
153 |
| 0001 | int0x80 | .txt | . . . . . 6 | 4095 |
145 |
| 0003 | continue | .forth | . . . . . 6 | 4349 |
150 |
| 0005 | mattpass | .sh | 1 . . . 5 6 | 4859 |
151 |
/// Top 3 Score ////////////////////////////////////////////////////////////////
dominikr's ELF/COM polyglot had the highest score. It satisfies all 6 BGGPs and
got additional points for patching an ELF bug in radare2 that was merged before
the contest was over.
mattpass's Shell/SQL/ZIP polyglot also satisfied all 6 BGGP challenges!
| Size | Author | Type | BGGP | Score | Issue |
| ---- | -------- | ---------------------- | ----------- | ----- | ----- |
| 0223 | dominikr | ELF COM | 1 2 3 4 5 6 | 6433 |
170 |
| 0179 | mattpass | .sh, .sql, .zip | 1 2 3 4 5 6 | 5453 |
165 |
| 0026 | q3w3e3 | .sh, .pl | . 2 3 4 5 6 | 5350 |
171 |
─── Conclusion ─────────────────────────────────────────────────────────────────
Thanks to everyone who submitted entries to this year's BGGP! Stay tuned for an
all new
binary.golf website coming later this year.
Huge thank you to everyone who helped triage entries and hyped BGGP6 this year!
Follow us on social media
@binarygolf (twitter)
@binary.golf (bsky)
@binarygolf@haunted.computer (fedi)
Peace,
netspooky // Binary Golf Association
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