• Log InLog In
  • Register
Liquid`
Team Liquid Liquipedia
EDT 15:03
CEST 21:03
KST 04:03
  • Home
  • Forum
  • Calendar
  • Streams
  • Liquipedia
  • Features
  • Store
  • EPT
  • TL+
  • StarCraft 2
  • Brood War
  • Smash
  • Heroes
  • Counter-Strike
  • Overwatch
  • Liquibet
  • Fantasy StarCraft
  • TLPD
  • StarCraft 2
  • Brood War
  • Blogs
Forum Sidebar
Events/Features
News
Featured News
TL.net Map Contest #22 - Voting & Ladder Map Selection1Code S Season 2 (2026) - RO8 Preview4[ASL21] Finals Preview: Two Legacies21Code S Season 2 (2026) - RO12 Preview2herO wins GSL Code S Season 1 (2026)7
Community News
StarCraft II 5.0.16 PTR Patch Notes may 26th103Weekly Cups (May 18-25): MaxPax wins doubles0Crank Gathers Season 4: BW vs SC2 Team League4Weekly Cups (May 11-17): Classic wins double1Code S Season 1 (2026) - RO8 Results2
StarCraft 2
General
The death of cheese, from a professional cheeser. StarCraft II 5.0.16 PTR Patch Notes may 26th Changing from 12 to 8 is just asking for StarCraft TL Poll: How do you feel about the 5.0.16 PTR balance changes? Weekly Cups (May 11-17): Classic wins double
Tourneys
Maestros of The Game 2 announcement and schedule ! RSL Revival: Season 5 - Qualifiers and Main Event GSL Code S Season 2 (2026) Sparkling Tuna Cup - Weekly Open Tournament Crank Gathers Season 4: BW vs SC2 Team League
Strategy
[G] Having the right mentality to improve
Custom Maps
[D]RTS in all its shapes and glory <3 [A] Nemrods 1/4 players
External Content
Mutation # 528 Infection Detected Welcome to the External Content forum Mutation # 527 Hell Train The PondCast: SC2 News & Results
Brood War
General
BGH Auto Balance -> http://bghmmr.eu/ FlaShFTW vs A.Alm Grudge Match Event VPN experiences Soma's ASL Finals Review OGN to release AI-upscaled StarLeague from Feb 24
Tourneys
[ASL21] Grand Finals [Megathread] Daily Proleagues Escore Tournament StarCraft Season 2 [BSL22] WB Final & LB Semis - Saturday 21:00 CEST
Strategy
Any training maps people recommend? Muta micro map competition [G] Hydra ZvZ: An Introduction Fighting Spirit mining rates
Other Games
General Games
Stormgate/Frost Giant Megathread Nintendo Switch Thread ZeroSpace Megathread Path of Exile Dawn of War IV
Dota 2
Official 'what is Dota anymore' discussion
League of Legends
Heroes of the Storm
Simple Questions, Simple Answers Heroes of the Storm 2.0
Hearthstone
Deck construction bug Heroes of StarCraft mini-set
TL Mafia
Vanilla Mini Mafia Mafia Game Mode Feedback/Ideas TL Mafia Community Thread Five o'clock TL Mafia
Community
General
Russo-Ukrainian War Thread Trading/Investing Thread US Politics Mega-thread Things Aren’t Peaceful in Palestine Dating: How's your luck?
Fan Clubs
The herO Fan Club!
Media & Entertainment
[Manga] One Piece Anime Discussion Thread [Req][Books] Good Fantasy/SciFi books
Sports
McBoner: A hockey love story 2024 - 2026 Football Thread TeamLiquid Health and Fitness Initiative For 2023 Formula 1 Discussion
World Cup 2022
Tech Support
Computer Build, Upgrade & Buying Resource Thread Facing Challenges in Mobile App Development
TL Community
The Automated Ban List
Blogs
Esportsmanship: How to NOT B…
TrAiDoS
Why RTS gamers make better f…
gosubay
ramps on octagon
StaticNine
ASL S21 English Commentary…
namkraft
Customize Sidebar...

Website Feedback

Closed Threads



Active: 3377 users

Manipulating Scarabs

Forum Index > Brood War Strategy
Post a Reply
MeSaber
Profile Joined December 2009
Sweden1235 Posts
Last Edited: 2022-03-28 17:29:55
March 28 2022 17:22 GMT
#1
When people say scarabs 'dud' what actually happens is that you are unknowingly manipulating scarabs when you move the target. I have mentioned this in some other thread but i wanted to showcase (again) what you can do to be safe from scarabs, also what you can do to help scarabs hit the target.

Examples of scarab not finding the path because of a moving target (red probe): [Replay]
[image loading] [image loading] [image loading]

What you can see on the most right image; moving objects (teal probe) blocking a scarab is way more abrupting to scarab pathfinding than static objects.

This is why most of the time when you aim a scarab at a center worker to get maximum damage; when your opponent moves all workers at once it will 'dud'. You dont necessarily have to go away from the scarab either. Some luck can play a role where it have the opportunity to go straight through all blocking probes or if the probes blocking stops, giving scarab pathfinding an easier time to navigate.

As seen on the images, static objects gets a try on pathfinding (red arrows) while moving objects blocking the path do not. Most likely because it never gets the time to pathfind around the blocking object as it keeps moving away from the scarab, resetting pathfinding algorithm.



So how do you actually get the most damage out of scarabs?

As seen in the image below, you can see the reaver can shoot through minerals if you drop it close enough to mineral line. This i would argue is the safest option to keep reaver both alive and do damage to whatever stack of workers you want to attack (as the scarab will jump through all minerals straight to target).

Next is the Green square which serves as the perfect position to get workers cornered. They have nowhere to go resulting in lost workers and hopefully many if aimed correctly (aim at a worker that isnt already blocked by another unit).

As the defender you have four options if a reaver comes:
1. Do nothing, let probes die until reaver is dead.
2. If reaver drops at the Green square you pull probes to gas and then to center map to keep them as unstacked as possible.
3. Flee to base as thats a long distance and you wont need to micromanage them anymore after that, probes will die as you will go straight through reaver (Green square).
4. Keep probes unstacked by going to Center map (yellow lines upwards)

I would say option 4 (yellow lines) is best because it will makes workers unstacked the quickest and starts moving asap. If reaver aims incorrectly (at a worker followed by another worker) it will most certainly 'dud'. Least workers will be killed.

[Replay]
[image loading]

And the scenario if reaver is too far from minerals: (green static target / blue moving target) [Replay]
[image loading]

I encourage you (who uses reaver a lot) to study your own games where you use reaver and see if you can apply this information somewhere to un-'dud' your games.

Maybe sometime in the future; all games becomes un-dud:ed. That would be really cool to see.

I guess thats all i had to say for now. Thank you for reading.
-.-
limbhaze
Profile Joined March 2022
2 Posts
March 29 2022 13:17 GMT
#2
--- Nuked ---
EndingLife
Profile Blog Joined December 2002
United States1602 Posts
March 29 2022 13:29 GMT
#3
Real good stuff. Sick post!
imBLIND
Profile Blog Joined December 2006
United States2626 Posts
April 01 2022 05:52 GMT
#4
I've always wondered if some kind of science existed for reaver scarabs. Is there a way to take this knowledge even further? The game that comes to mind is Flash vs Rush ASL10, where Flash's rando-toss reaver got 16 kills with extremely surprising hits. Even some pros were shocked. Is this luck, or is it possible Flash knows something that we don't?

im deaf
MeSaber
Profile Joined December 2009
Sweden1235 Posts
Last Edited: 2022-04-02 05:49:29
April 01 2022 06:53 GMT
#5
As i mentioned in the post above, a moving target makes scarab use another form of engagement, more like "predicted movement" where it estimates where SCV will be in time, trying to intercept it in its way, thats what happening on the first shot that passes all SCVs, as they are following a predefined pathfinding which is made at map making. So the prediction says SCV will move to the left so it passes all SCV on its left side, not getting blocked by SCVs behind the target.

This then damages a lot of SCVs as scarabs have splash damage and SCVs good enough HP to survive even the 50% splash radius. This is why you rarely see many SCVs die because you have to hit em in the smallest radius that does 100% dmg.

Second shot in main also damages some SCVs.

Third shot, most SCVs are already damaged to the point they will die of scarabs outer splash radius which does 25% (Maybe its the 50%, else all SCVs would be dead).

Reaver splash: (Rightclick image - Open image in new TAB for full size) Wiki: (Wiki)Splash Damage
[image loading]


Compared to Siege Tank splash:
[image loading]

-.-
AleXoundOS
Profile Joined January 2011
Georgia458 Posts
April 05 2022 15:49 GMT
#6
Thank you for the in-depth explanation.
https://bwapi.github.io - An API for interacting with Starcraft: Broodwar (1.16.1)
MineraIs
Profile Joined September 2020
United States846 Posts
Last Edited: 2022-04-07 20:40:03
April 07 2022 20:39 GMT
#7
Every situation will be different with reavers because of the pathing regions being different.
✯ [ twitch.tv/MrMineraIs ] ✯ [ Check out my Maps: https://tl.net/forum/brood-war/612442-official-maps-by-minerals ] ✯
MeSaber
Profile Joined December 2009
Sweden1235 Posts
Last Edited: 2022-04-09 06:45:40
April 08 2022 04:55 GMT
#8
On April 08 2022 05:39 MineraIs wrote:
Every situation will be different with reavers because of the pathing regions being different.


I dont think Scarabs follow those regions. The Reaver does to determine if it can shoot or not. Once the Scarab is out, it SEEMS like it doesnt follow any region paths.

I could test this further of course but for now my conclusion is it doesnt use those paths (as mentioned in the post how they differ from worker pathing).

Edit: It could likely be that region paths are used until the target is moving, then it goes for some own path prediction.
-.-
Please log in or register to reply.
Live Events Refresh
BSL
19:00
RO8 - Day 6
LiquipediaDiscussion
Showmatch
16:00
Shopify Rebellion Sunday #3: PTR Edition
ByuN vs Clem
YoungYakov vs GuMihoLIVE!
Harstem1290
Liquipedia
IPSL
16:00
Ro16 Group D
Dragon vs Artosis
dxtr13 vs Hawk
Airneanach95
Liquipedia
[ Submit Event ]
Live Streams
Refresh
StarCraft 2
Harstem 1290
ProTech85
elazer 83
JuggernautJason61
BRAT_OK 41
MindelVK 39
StarCraft: Brood War
ZZZero.O 78
Rock 31
GoRush 15
ajuk12(nOOB) 9
ivOry 4
Dota 2
qojqva2805
XaKoH 346
Counter-Strike
pashabiceps1418
x6flipin489
edward142
Super Smash Bros
Mew2King59
Heroes of the Storm
Khaldor216
Other Games
summit1g3869
Grubby3170
Liquid`RaSZi2455
B2W.Neo706
fl0m663
Beastyqt625
420jenkins227
Hui .164
Organizations
Other Games
gamesdonequick1385
EGCTV711
Counter-Strike
PGL186
Other Games
BasetradeTV142
StarCraft 2
Blizzard YouTube
StarCraft: Brood War
BSLTrovo
[ Show 12 non-featured ]
StarCraft 2
• Reevou 5
• AfreecaTV YouTube
• intothetv
• Kozan
• IndyKCrew
• LaughNgamezSOOP
• Migwel
• sooper7s
StarCraft: Brood War
• BSLYoutube
• STPLYoutube
• ZZZeroYoutube
Dota 2
• lizZardDota261
Upcoming Events
OSC
4h 57m
Wardi Open
16h 57m
Monday Night Weeklies
20h 57m
Replay Cast
1d 4h
Sparkling Tuna Cup
1d 14h
WardiTV Spring Champion…
1d 15h
Maestros of the Game
1d 20h
The PondCast
2 days
Kung Fu Cup
2 days
uThermal 2v2 Circuit
2 days
[ Show More ]
Maestros of the Game
2 days
Replay Cast
3 days
Replay Cast
3 days
WardiTV Spring Champion…
3 days
Maestros of the Game
3 days
Replay Cast
4 days
uThermal 2v2 Circuit
4 days
Maestros of the Game
4 days
Replay Cast
5 days
Solar vs Classic
uThermal 2v2 Circuit
5 days
GSL
6 days
uThermal 2v2 Circuit
6 days
BSL
6 days
Liquipedia Results

Completed

Escore Tournament S2: King of Kings
2026 GSL S1
Heroes Pulsing #1

Ongoing

BSL Season 22
IPSL Spring 2026
KCM Race Survival 2026 Season 2
Acropolis #4
CSCL: Masked Kings S4
YSL S3
SCTL 2026 Spring
WardiTV Spring 2026
Maestros of the Game 2
2026 GSL S2
Murky Cup 2026
Stake Ranked Episode 2
CS Asia Championships 2026
Asian Champions League 2026
IEM Atlanta 2026
PGL Astana 2026
BLAST Rivals Spring 2026
IEM Rio 2026
PGL Bucharest 2026
Stake Ranked Episode 1
BLAST Open Spring 2026

Upcoming

BSL 22 Non-Korean Championship
CSLAN 4
Blizzard Classic Cup 2026
Kung Fu Cup 2026 Grand Finals
CranK Gathers Season 4: BW vs SC2 Team League
HSC XXIX
uThermal 2v2 2026 Main Event
Heroes Pulsing #3
Heroes Pulsing #2
Esports World Cup 2026
BLAST Bounty Summer 2026
BLAST Bounty Summer Qual
Stake Ranked Episode 3
XSE Pro League 2026
IEM Cologne Major 2026
TLPD

1. ByuN
2. TY
3. Dark
4. Solar
5. Stats
6. Nerchio
7. sOs
8. soO
9. INnoVation
10. Elazer
1. Rain
2. Flash
3. EffOrt
4. Last
5. Bisu
6. Soulkey
7. Mini
8. Sharp
Sidebar Settings...

Advertising | Privacy Policy | Terms Of Use | Contact Us

Original banner artwork: Jim Warren
The contents of this webpage are copyright © 2026 TLnet. All Rights Reserved.