• Log InLog In
  • Register
Liquid`
Team Liquid Liquipedia
EST 18:42
CET 00:42
KST 08:42
  • 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
RSL Revival - 2025 Season Finals Preview8RSL Season 3 - Playoffs Preview0RSL Season 3 - RO16 Groups C & D Preview0RSL Season 3 - RO16 Groups A & B Preview2TL.net Map Contest #21: Winners12
Community News
Weekly Cups (Jan 5-11): Clem wins big offline, Trigger upsets4$21,000 Rongyi Cup Season 3 announced (Jan 22-Feb 7)15Weekly Cups (Dec 29-Jan 4): Protoss rolls, 2v2 returns7[BSL21] Non-Korean Championship - Starts Jan 103SC2 All-Star Invitational: Jan 17-1828
StarCraft 2
General
Weekly Cups (Jan 5-11): Clem wins big offline, Trigger upsets SC2 All-Star Invitational: Jan 17-18 When will we find out if there are more tournament SC2 Spotted on the EWC 2026 list? Weekly Cups (Dec 29-Jan 4): Protoss rolls, 2v2 returns
Tourneys
SC2 AI Tournament 2026 Sparkling Tuna Cup - Weekly Open Tournament $21,000 Rongyi Cup Season 3 announced (Jan 22-Feb 7) $25,000 Streamerzone StarCraft Pro Series announced WardiTV Winter Cup
Strategy
Simple Questions Simple Answers
Custom Maps
Map Editor closed ?
External Content
Mutation # 508 Violent Night Mutation # 507 Well Trained Mutation # 506 Warp Zone Mutation # 505 Rise From Ashes
Brood War
General
[ASL21] Potential Map Candidates BGH Auto Balance -> http://bghmmr.eu/ BW General Discussion A cwal.gg Extension - Easily keep track of anyone Potential ASL qualifier breakthroughs?
Tourneys
[Megathread] Daily Proleagues [BSL21] Grand Finals - Sunday 21:00 CET [BSL21] Non-Korean Championship - Starts Jan 10 SLON Grand Finals – Season 2
Strategy
Game Theory for Starcraft Simple Questions, Simple Answers Current Meta [G] How to get started on ladder as a new Z player
Other Games
General Games
Beyond All Reason Nintendo Switch Thread Awesome Games Done Quick 2026! Mechabellum Stormgate/Frost Giant Megathread
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
Community
General
US Politics Mega-thread Russo-Ukrainian War Thread Things Aren’t Peaceful in Palestine European Politico-economics QA Mega-thread Trading/Investing Thread
Fan Clubs
White-Ra Fan Club
Media & Entertainment
Anime Discussion Thread
Sports
2024 - 2026 Football Thread
World Cup 2022
Tech Support
Computer Build, Upgrade & Buying Resource Thread
TL Community
The Automated Ban List
Blogs
My 2025 Magic: The Gathering…
DARKING
Physical Exercise (HIIT) Bef…
TrAiDoS
Life Update and thoughts.
FuDDx
How do archons sleep?
8882
James Bond movies ranking - pa…
Topin
Customize Sidebar...

Website Feedback

Closed Threads



Active: 2650 users

Chopped Chess Board and Dominoes?

Blogs > EsX_Raptor
Post a Reply
EsX_Raptor
Profile Blog Joined February 2008
United States2802 Posts
Last Edited: 2011-08-04 23:01:09
August 04 2011 22:05 GMT
#1
We have a chessboard with the two opposing corners removed, and we have a set of dominoes shaped such that each domino covers exactly two squares:

[image loading]


Which arrangement of dominoes can cover the entire chessboard?

+ Show Spoiler [Solution] +
aphorism is right.

Damn you, Teamliquid! I was expecting a solution at least by the third response or so!


***
aphorism
Profile Joined February 2011
United States226 Posts
August 04 2011 22:09 GMT
#2
Solution:

+ Show Spoiler +
None: each domino must cover one white square and one black one, but the modified board has 32 black squares and only 30 white ones, so no arrangement works.
Mikilatov
Profile Blog Joined May 2008
United States3897 Posts
Last Edited: 2011-08-04 22:13:50
August 04 2011 22:13 GMT
#3
On August 05 2011 07:09 aphorism wrote:
Solution:

+ Show Spoiler +
None: each domino must cover one white square and one black one, but the modified board has 32 black squares and only 30 white ones, so no arrangement works.


+ Show Spoiler +
I tried it like 3-4 times and failed. =P If it is indeed unsolvable as you say, then I hate you, OP.
♥ I used to lasso the shit out of your tournaments =( ♥ | Much is my hero. | zizi yO~ | Be Nice, TL.
XXGeneration
Profile Blog Joined November 2010
United States625 Posts
August 04 2011 22:14 GMT
#4
On August 05 2011 07:09 aphorism wrote:
Solution:

+ Show Spoiler +
None: each domino must cover one white square and one black one, but the modified board has 32 black squares and only 30 white ones, so no arrangement works.


+ Show Spoiler +
This is correct; I remember this as being the proper explanation for these types of problems.
"I was so surprised when I first played StarCraft 2. I couldn't believe that such an easy game exists... I guess the best way to attract people these days is to make things easy and simple." -Midas
Primadog
Profile Blog Joined April 2010
United States4411 Posts
August 04 2011 22:37 GMT
#5
Elegent. What a beautiful solution.
Thank God and gunrun.
GigaFlop
Profile Blog Joined October 2010
United States1146 Posts
August 04 2011 23:37 GMT
#6
I thought this was going to be an actual chopped up chessboard with dominoes replacing the missing squares... But nope, not that.
(╯°□°)╯︵ ┻━┻ "Shift-Q oftentimes makes a capital Q" - Day[9] || iNcontrol - Alligator from heaven = ^
Monoxide
Profile Blog Joined January 2007
Canada1190 Posts
August 05 2011 00:08 GMT
#7
Pretty well known problem. Indeed the solution is very elegant.
infinitestory
Profile Blog Joined April 2010
United States4053 Posts
August 05 2011 00:10 GMT
#8
Now, a second question - what arrangement of L-shaped triominoes can cover every square????

+ Show Spoiler +
heh
Translator:3
Z3kk
Profile Blog Joined December 2009
4099 Posts
August 05 2011 00:11 GMT
#9
Nailed the solution. Nice.
Failure is not falling down over and over again. Failure is refusing to get back up.
3FFA
Profile Blog Joined February 2010
United States3931 Posts
August 05 2011 03:58 GMT
#10
On August 05 2011 07:05 EsX_Raptor wrote:
We have a chessboard with the two opposing corners removed, and we have a set of dominoes shaped such that each domino covers exactly two squares:

[image loading]


Which arrangement of dominoes can cover the entire chessboard?

+ Show Spoiler [Solution] +
aphorism is right.

Damn you, Teamliquid! I was expecting a solution at least by the third response or so!

Lol... This place is full of nerds, geeks, other smart dudes, chess lovers, puzzle solving lovers, etc. And you expected for this to work? :3
"As long as it comes from a pure place and from a honest place, you know, you can write whatever you want."
Please log in or register to reply.
Live Events Refresh
Next event in 10h 18m
[ Submit Event ]
Live Streams
Refresh
StarCraft 2
Nathanias 138
UpATreeSC 122
CosmosSc2 47
StarCraft: Brood War
Shuttle 574
Artosis 531
910 32
NaDa 18
Dota 2
syndereN436
capcasts73
canceldota23
Counter-Strike
Foxcn361
Super Smash Bros
Mew2King155
AZ_Axe62
Other Games
tarik_tv5853
Liquid`RaSZi2427
Grubby2196
FrodaN1227
shahzam553
C9.Mang0218
B2W.Neo211
KnowMe93
Fnx 92
Maynarde84
ZombieGrub34
ViBE15
Organizations
Other Games
gamesdonequick2167
StarCraft 2
Blizzard YouTube
StarCraft: Brood War
BSLTrovo
sctven
[ Show 19 non-featured ]
StarCraft 2
• Hupsaiya 79
• davetesta35
• HeavenSC 24
• sooper7s
• Migwel
• AfreecaTV YouTube
• LaughNgamezSOOP
• intothetv
• IndyKCrew
• Kozan
StarCraft: Brood War
• Azhi_Dahaki36
• STPLYoutube
• ZZZeroYoutube
• BSLYoutube
Dota 2
• masondota21431
League of Legends
• Doublelift4394
• Scarra1186
Other Games
• imaqtpie2397
• Shiphtur288
Upcoming Events
The PondCast
10h 18m
OSC
12h 18m
Jumy vs sebesdes
Nicoract vs GgMaChine
ReBellioN vs MaNa
Lemon vs TriGGeR
Gerald vs Cure
Creator vs SHIN
OSC
1d 12h
All Star Teams
2 days
INnoVation vs soO
Serral vs herO
Cure vs Solar
sOs vs Scarlett
Classic vs Clem
Reynor vs Maru
uThermal 2v2 Circuit
2 days
All Star Teams
3 days
MMA vs DongRaeGu
Rogue vs Oliveira
Sparkling Tuna Cup
3 days
OSC
3 days
Replay Cast
4 days
Wardi Open
4 days
[ Show More ]
Monday Night Weeklies
4 days
The PondCast
6 days
Liquipedia Results

Completed

Proleague 2026-01-13
Big Gabe Cup #3
NA Kuram Kup

Ongoing

C-Race Season 1
IPSL Winter 2025-26
BSL 21 Non-Korean Championship
CSL 2025 WINTER (S19)
OSC Championship Season 13
Underdog Cup #3
BLAST Bounty Winter Qual
eXTREMESLAND 2025
SL Budapest Major 2025
ESL Impact League Season 8
BLAST Rivals Fall 2025
IEM Chengdu 2025
PGL Masters Bucharest 2025

Upcoming

Escore Tournament S1: W4
Acropolis #4
IPSL Spring 2026
Bellum Gens Elite Stara Zagora 2026
HSC XXVIII
Rongyi Cup S3
SC2 All-Star Inv. 2025
Nations Cup 2026
BLAST Open Spring 2026
ESL Pro League Season 23
ESL Pro League Season 23
PGL Cluj-Napoca 2026
IEM Kraków 2026
BLAST Bounty Winter 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.