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Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

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Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#21
A couple of comments are slightly misconstruing the "rack management" strategy. Using all your letters for the 50 point bonus is sometimes OK.

>they increasingly hold off on other high-scoring moves, such as six-letter words, or seven-letter terms that only use six tiles from the rack. Instead, by spelling four- or five-letter words, a player can keep their most useful tiles—like E-D or I-N-G—for the next round, a strategy called rack management. The Nigerians rehearse it during dayslong scrimmage sessions.

My paraphrasing: "unless you are using all your tiles for the 50 points bonus, make sure you have decent letters after your turn; even then, consider whether the bonus is worth it."

Examples off the top of my head: what's especially decried is using 6 of your letters leaving "Q" or 5 of your letters, leaving you with something like "LW" and 5 randoms, which makes for awkward turns.

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#22
post #14

"Nigeria is beating the West at its own board game" I know that the definition of "the West" is pretty vague, but this journalism seems a decade or two behind its time with its "us and them" style. Scrabble doesn't belong to Europe/USA and Nigeria fits geographically, politically, economically, and religiously into common definitions of "the West".

Wikipedia's "Cultural Definition": "From a cultural and sociological approach the Western world is defined as including all cultures that are directly derived from and influenced by European cultures, i.e. Europe (at least the European Union member states, EFTA countries, European microstates);[31][32] in the Americas (e.g. Argentina, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba, Mexico, United States of America…

Not even South Africa?

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#23
post #4

If I understand this correctly, they are applying the Chess strategy of thinking n-moves ahead to Scrabble, where the opponent's tiles are hidden and ones own future tiles are mostly unknown. If you use all the tiles, on the upside you get +50 extra points. The downside is that you leave a lot more room for the opponent to score big since there are more letters on board after your move. Also, you have no control on y…

>> If I understand this correctly, they are applying the Chess strategy of thinking n-moves ahead to Scrabble, where the opponent's tiles are hidden and ones own future tiles are mostly unknown.

Yep, Scrabble is a hidden-information, stochastic game (the opponent's future tiles are also randomly drawn).

Scrabble is probably more similar to poker and other card games in that respect. The key difference is that the distribution of letter tiles is skewed: the number of tiles is not the same for each letter [1]. This is different than, say, playing cards, where you get exactly 4 of each card (plus the, I think two, Jokers).

Which means it's easier to make a prediction for what's coming out of the opponent's bag, possibly (they're more likely to see the more common tiles).

>> they are applying the Chess strategy of thinking n-moves ahead

Well, that's a universal m-player game strategy, not specific to chess. Minimax and all that, ja? Did I misunderstand what you mean?

Except of course in this case the optimal strategy for Scrabble seems to be under dispute (long or short words best?) and so programming an AI player with minimax might not be that straightforward.

[1] https://en.wikipedia.org/wiki/Scrabble_letter_distributions

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#24
post #4

If I understand this correctly, they are applying the Chess strategy of thinking n-moves ahead to Scrabble, where the opponent's tiles are hidden and ones own future tiles are mostly unknown. If you use all the tiles, on the upside you get +50 extra points. The downside is that you leave a lot more room for the opponent to score big since there are more letters on board after your move. Also, you have no control on y…

"they are applying the Chess strategy of thinking n-moves ahead to Scrabble"

That isn't new, what is new is that they (learni from analysis of games played by computer) show is that the conventional strategy favours scoring points too much over keeping a rack that allows you to score decently in future moves and preventing your opponent from scoring heavily.

This is presented as a totally new strategy, but looking at the video showing an example game, I get the impression it is more of a slight, but important adjustment. For example, the Nigerian does have a seven-letter move in that play.

And, by the way, I would expect this:

"Mr. Jighere and his teammates kept to themselves, going to bed early […] his opponent, Mr. Mackay, spent the evening before their big match at a pub."

also influenced the result. McKay probably saw this as a bit of a holiday, while the Nigerians saw it as work. 449 vs 432 is not a crushing defeat.

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#25

"Nigeria is beating the West at its own board game" I know that the definition of "the West" is pretty vague, but this journalism seems a decade or two behind its time with its "us and them" style. Scrabble doesn't belong to Europe/USA and Nigeria fits geographically, politically, economically, and religiously into common definitions of "the West".

> Nigeria fits geographically, politically, economically, and religiously into common definitions of "the West".

The common definition of "the West" would be western Europe (we could take this as the parts of Europe which did not affiliate with an Eastern Orthodox church, or as the parts of Europe which did not affiliate with the Soviet Union), the United States, Canada, Australia, and New Zealand.

Geographically, Nigeria is not located in any of those places, or related to any of those places. It is located in the part of the world referred to as "sub-Saharan Africa".

Politically:

> Kin-selective altruism has made its way into Nigerian politics, resulting in tribalist efforts to concentrate Federal power to a particular region of their interests. Nationalism has also led to active secessionist movements such as MASSOB, Nationalist movements such as Oodua Peoples Congress, Movement for the Emancipation of the Niger Delta and a civil war. Nigeria's three largest ethnic groups (Hausa, Igbo and Yoruba) have maintained historical preeminence in Nigerian politics; competition amongst these three groups has fuelled corruption and graft.

> president Olusegun Obasanjo, acknowledged fraud and other electoral "lapses" but said the result reflected opinion polls. In a national television address in 2007, he added that if Nigerians did not like the victory of his handpicked successor, they would have an opportunity to vote again in four years.

> As in many other African societies, prebendalism and high rates of corruption continue to constitute major challenges to Nigeria. All major parties have practised vote rigging and other means of coercion to remain competitive.

(from https://en.wikipedia.org/wiki/Nigeria#Government_and_politic... -- this is the lowest of low-hanging fruit)

Economically, Nigeria is nothing like "the West".

Religiously,

> According to a 2009 Pew survey, 75% of Nigeria's population were Muslims. A later Pew study in 2011 estimated that Christians now formed the majority of the nation, comprising 50.8% of the population, while Muslims comprised 47.9%.

( https://en.wikipedia.org/wiki/Demographics_of_Nigeria#Religi... )

All four of your claims appear to be nonsense.

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#26
Brian Sheppard's thesis "Towards Perfect Play of Scrabble" [0] has a lot of good info on Scrabble strategy which can be applied to human play as well as to AI (though obviously things like B* and Monte Carlo search aren't realistic for human players)

    [0] https://project.dke.maastrichtuniversity.nl/games/files/phd/Shepard_thesis.pdf

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#27
post #24
post #4

If I understand this correctly, they are applying the Chess strategy of thinking n-moves ahead to Scrabble, where the opponent's tiles are hidden and ones own future tiles are mostly unknown. If you use all the tiles, on the upside you get +50 extra points. The downside is that you leave a lot more room for the opponent to score big since there are more letters on board after your move. Also, you have no control on y…

"they are applying the Chess strategy of thinking n-moves ahead to Scrabble" That isn't new, what is new is that they (learni from analysis of games played by computer) show is that the conventional strategy favours scoring points too much over keeping a rack that allows you to score decently in future moves and preventing your opponent from scoring heavily. This is presented as a totally new strategy, but looking at…

>> McKay probably saw this as a bit of a holiday, while the Nigerians saw it as work.

Nah. A British gentleman will always go down his local for a pint after work :P

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#28
post #22
post #14

Earlier quoted context omitted.

Wikipedia's "Cultural Definition": "From a cultural and sociological approach the Western world is defined as including all cultures that are directly derived from and influenced by European cultures, i.e. Europe (at least the European Union member states, EFTA countries, European microstates);[31][32] in the Americas (e.g. Argentina, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba, Mexico, United States of America…

Not even South Africa?

I can't think of any time I've thought of or heard someone speaking of South Africa as a western country. Influenced by the West, sure.

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#29

"Nigeria is beating the West at its own board game" I know that the definition of "the West" is pretty vague, but this journalism seems a decade or two behind its time with its "us and them" style. Scrabble doesn't belong to Europe/USA and Nigeria fits geographically, politically, economically, and religiously into common definitions of "the West".

Scrabble quite literally was invented by and belongs to an American company. And you're basically just asking for the definition of "the West" to be rewritten for some reason: - culturally, I think it's a disservice to Nigeria to call it "Western", which usually means descended from the European tradition. Nigerians have their own ancient history, whereas direct descendants of European immigrants (e.g. most Americans…

- religiously, Nigeria is >50% Muslim.

You know, I might be misreading this but I think you mean Western society is, by contrast, Christian.

The West has made a big todo about being secular on a national level, regardless of what the population believes or does not believe. In some countries, the people are also largely a-religious. There's culture war, check, but to say that a nation's religion plays any role in whether it belongs to the West or not is, dunno. Dangerous?

I don't disagree that in the past cultural lines were drawn along religion, but, surely we 've come a bit of way since? Maybe not if you look at current wars, but still: is that really, really what we think the West means? An alliance of Christian nations?

'Cause that, like, sucks.

Re: Nigerians Dominate Scrabble Tournaments Using Five-Letter Word Strategy

#30
post #13

More counterintuitive Scrabble facts: the French Scrabble world champion is from New Zealand and doesn't speak French. http://www.npr.org/sections/thetwo-way/2015/07/21/424980378/...

To be fair, he can now speak French words. He just has no idea what they mean.
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