• Log InLog In
  • Register
Liquid`
Team Liquid Liquipedia
EDT 07:48
CEST 13:48
KST 20:48
  • 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
Serral wins HomeStory Cup 2914Serral wins Maestros of the Game 243ByuL, and the Limitations of Standard Play3Team Liquid Map Contest #22: Results and Winners7Code S Season 2 (2026): RO4 and Finals Preview12
Community News
Weekly Cups (July 27-Aug 2): SHIN's big week0SC4ALL II: Brood War - $2500 - Dec 5-66SC4ALL II announced - $10,000 prize pool, Dec 5-63PIG STY FESTIVAL 8.0! (13 - 23 August)11Neeb returns to progaming; rejoins ONSYDE15
StarCraft 2
General
August World Ranking: Clem climbs to #2 Balance hotfix patch 5.0.16b (July 16) Daily SC2 Player Grid - feedback wanted Weekly Cups (July 27-Aug 2): SHIN's big week Life's Huge Gambling Spree After IEM Katowice 2014
Tourneys
Sparkling Tuna Cup - Weekly Open Tournament PIG STY FESTIVAL 8.0! (13 - 23 August) RSL Revival: Season 6 - Qualifiers and Main Event INu's Battles #19 2-Days Event SC4ALL II announced - $10,000 prize pool, Dec 5-6
Strategy
[G] Having the right mentality to improve
Custom Maps
Nexus Wars 2021 GUIDE [M] (2) Industrial Park
External Content
The PondCast: SC2 News & Results Mutation # 537 Hostile Territory Mutation # 536 Railroad Switch Mutation # 535 Assembly of Vengeance
Brood War
General
Making an Online Broodwar Manager Game BW General Discussion ASL22 General Discussion [Personal Project Share] Terran Defense v0.60 ASL 22 Proposed Map Pool
Tourneys
2v2v2v2 Tournament [Megathread] Daily Proleagues SC4ALL II: Brood War - $2500 - Dec 5-6 Escore Tournament - Season 3
Strategy
Any training maps people recommend? Fighting Spirit mining rates Simple Questions, Simple Answers Odyssey Mineral Stack Saturation
Other Games
General Games
Stormgate/Frost Giant Megathread Nintendo Switch Thread ZeroSpace Early Access is Now Live! Beyond All Reason Path of Exile
Dota 2
Looking for a Dota Mentor Official 'what is Dota anymore' discussion
League of Legends
[TL LoL EUW IHs] Teemo shall perish TSM pausing esports and CLG Dead
Heroes of the Storm
Heroes of the Storm 2.0
Hearthstone
Deck construction bug
TL Mafia
TL Mafia Power Rank TL Mafia Community Thread NeO.D_StephenKing vs This Guy From 1 Million Dance
Community
General
US Politics Mega-thread Artificial Intelligence Thread European Politico-economics QA Mega-thread Russo-Ukrainian War Thread Things Aren’t Peaceful in Palestine
Fan Clubs
INnoVation Fan Club The Scarlett Fan Club The IdrA Fan Club
Media & Entertainment
Anime Discussion Thread Movie Discussion! Series you have seen recently... [Req][Books] Good Fantasy/SciFi books
Sports
Football (Soccer) Thread TeamLiquid Health and Fitness Initiative For 2023 Formula 1 Discussion MLB/Baseball 2023 McBoner: A hockey love story
World Cup 2022
Tech Support
Computer Build, Upgrade & Buying Resource Thread Simple Questions Simple Answers FPS when play League Of Legend on laptop
TL Community
Northern Ireland Global Starcraft The Automated Ban List
Blogs
valeq
valeq
Please support my new stand…
Peanutsc
What is a Gamer?
TrAiDoS
Hello guys!
LIN1s
ASL S22 English Commentary…
namkraft
Poker (part 2)
Nebuchad
Customize Sidebar...

Website Feedback

Closed Threads



Active: 3982 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 States1605 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
INu's Battles
11:00
#19 - Day 1
Cure vs RogueLIVE!
ByuN vs Classic
Clem vs NightMare
IntoTheiNu 1224
WardiTV527
LiquipediaDiscussion
Sparkling Tuna Cup
10:00
Weekly #140
NightMare vs IbaLIVE!
ByuN vs TBD
CranKy Ducklings78
CranKy Ducklings SOOP7
LiquipediaDiscussion
[ Submit Event ]
Live Streams
Refresh
StarCraft 2
Lowko346
StarCraft: Brood War
Calm 11028
Bisu 1524
Shuttle 1508
Horang2 1018
Jaedong 691
BeSt 544
Leta 428
EffOrt 380
Mini 319
Stork 198
[ Show more ]
Zeus 174
Larva 148
Soma 136
Mong 102
Pusan 95
ZerO 92
Hyun 91
Hm[arnc] 87
Killer 85
Mind 72
Sharp 62
Shine 55
hero 47
Liquid`Ret 45
ToSsGirL 45
Sea.KH 40
JYJ 38
Barracks 29
soO 26
sorry 24
Icarus 22
Terrorterran 17
ZergMaN 14
Sexy 13
Noble 10
Dota 2
Gorgc16936
Dendi567
BananaSlamJamma154
Counter-Strike
byalli471
edward78
Other Games
singsing1537
B2W.Neo695
Pyrionflax167
Liquid`LucifroN133
ZerO(Twitch)7
Organizations
Other Games
BasetradeTV72
StarCraft: Brood War
UltimateBattle 28
lovetv 18
StarCraft 2
Blizzard YouTube
StarCraft: Brood War
BSLTrovo
[ Show 10 non-featured ]
StarCraft 2
• AfreecaTV YouTube
• intothetv
• Kozan
• IndyKCrew
• LaughNgamezSOOP
• Migwel
• sooper7s
StarCraft: Brood War
• BSLYoutube
• STPLYoutube
• ZZZeroYoutube
Upcoming Events
PiGosaur Cup
12h 12m
Replay Cast
21h 12m
Kung Fu Cup
23h 12m
Replay Cast
1d 12h
The PondCast
1d 22h
INu's Battles
1d 23h
Replay Cast
2 days
Escore
2 days
IntoTheTV X SOOP
2 days
RSL Revival
3 days
herO vs SHIN
Clem vs Solar
Serral vs Rogue
[ Show More ]
RSL Revival
4 days
WardiTV Weekly
5 days
Sparkling Tuna Cup
6 days
Liquipedia Results

Completed

Proleague 2026-08-03
CranK Gathers Season 4: BW vs SC2 Team League
Eternal Conflict S2 Finale

Ongoing

KCM Race Survival 2026 Season 3
K-JUNGMAN
RSL Revival: Season 6
BLAST Bounty Summer 2026
BLAST Bounty Summer Qual
Stake Ranked Episode 3
XSE Pro League 2026
IEM Cologne Major 2026
Stake Ranked Episode 2
CS Asia Championships 2026

Upcoming

Acropolis #5
Escore Tournament S3: W6
Escore Tournament S3: W7
CSLAN 4
ASL Season 22
Escore Tournament S3: W8
Acropolis #5 - TRS
HSC XXX
SC4ALL II: StarCraft II
Kung Fu Cup 2026 Grand Finals
PiG Sty Festival 8.0
Thunderpick World Champ.
ESL Pro League Season 24
Stake Ranked Episode 4
Logitech G Connect 2026
SL StarSeries Fall 2026
FISSURE Playground #5
BLAST Open Fall 2026
Esports World Cup 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.