Indoors: Backgammon

Back to where we left off last week. It is double match point and Black has a 53 to play. How would you play it: (a) 6/1, 6/3 or (b) 5/off, 5/2?

The first important point here is that you at least see the possibility of playing 5/off, 5/2. Many players would automatically make the 'forced' move 6/1, 6/3. How to evaluate such a position? The first thing is to look at the number of cross-overs (a cross-over moves a man from one quadrant of the board to the next or off the board). Here Black needs 11 cross- overs and White also needs 11 (four to bring his man on the bar to his home board and then seven to bear off). This means the position is close.

The other key factor is the blot on White's 2-point. If Black plays (b) and White enters with 22, 23, 24 or 26 hitting Black's blot then Black in turn will have the chance to hit White's blot, gaining significantly in the race. If White enters with 25 he should still hit the blot on Black's 2-point by playing Bar/23*/18 rather than play Bar/20/18.

The other benefits to (b) are that it takes a man off and maintains the 6-point for another roll. Compare the positions if White rolls 64 after Black has made his play. In case (a) White is a big favourite, in (b) he is still on the bar. The downside of (b) is that White may hit and then Black may miss, in which case White becomes a very big favourite.

Over the board it is difficult to balance these factors but, as I have said before, when in doubt be aggressive. I chose play (b), my opponent stayed on the bar with a 63, but backgammon being backgammon I lost when he rolled 66 with his final shake of the dice. Jellyfish analysis shows that Black will win the game 71 per cent of the time after play (b) but only 67 per cent after (a).

Start your day with The Independent, sign up for daily news emails
Have you tried new the Independent Digital Edition apps?
ebooks
ebooksA special investigation by Andy McSmith
News
Jerry Seinfeld Comedians in Cars Getting Coffee
peopleSitcom star urges men to be more supportive of women than ever
Life and Style
Living for the moment: Julianne Moore playing Alzheimer’s sufferer Alice
health
News
Jay Z
businessJay-Z's bid for Spotify rival could be blocked
Sport
Louis van Gaal is watching a different Manchester United and Wenger can still spring a surprise
News
The spider makes its break for freedom
VIDEO
Voices
A propaganda video shows Isis forces near Tikrit
voicesAdam Walker: The Koran has violent passages, but it also has others that explicitly tells us how to interpret them
Arts and Entertainment
books
News
people
Sport
Ashley Young celebrates the winner for Manchester United against Newcastle
footballNewcastle v United player ratings
Life and Style
love + sex
Arts and Entertainment
Victoria Wood, Kayvan Novak, Alexa Chung, Chris Moyles
tvReview: No soggy bottoms, but plenty of other baking disasters on The Great Comic Relief Bake Off
Latest stories from i100
Have you tried new the Independent Digital Edition apps?
Independent Dating
and  

By clicking 'Search' you
are agreeing to our
Terms of Use.

iJobs Job Widget
iJobs Education

Ashdown Group: IT Manager - Salesforce / Reports / CRM - North London - NfP

£45000 per annum: Ashdown Group: An established and reputable Not for Profit o...

Reach Volunteering: External HR Trustee Needed!

Voluntary post, reasonable expenses reimbursed: Reach Volunteering: Would you ...

SThree: Trainee Recruitment Consultant

£20000 - £25000 per annum + OTE £40,000: SThree: SThree have recently been awa...

Ashdown Group: Finance Manager - Covent Garden, central London - £45k - £55k

£45000 - £55000 per annum + 30 days holiday: Ashdown Group: Finance Manager - ...

Day In a Page

War with Isis: Iraq's government fights to win back Tikrit from militants - but then what?

Baghdad fights to win back Tikrit from Isis – but then what?

Patrick Cockburn reports from Kirkuk on a conflict which sectarianism has made intractable
Living with Alzheimer's: What is it really like to be diagnosed with early-onset dementia?

What is it like to live with Alzheimer's?

Depicting early-onset Alzheimer's, the film 'Still Alice' had a profound effect on Joy Watson, who lives with the illness. She tells Kate Hilpern how she's coped with the diagnosis
The Internet of Things: Meet the British salesman who gave real-world items a virtual life

Setting in motion the Internet of Things

British salesman Kevin Ashton gave real-world items a virtual life
Election 2015: Latest polling reveals Tories and Labour on course to win the same number of seats - with the SNP holding the balance of power

Election 2015: A dead heat between Mr Bean and Dick Dastardly!

Lord Ashcroft reveals latest polling – and which character voters associate with each leader
Audiences queue up for 'true stories told live' as cult competition The Moth goes global

Cult competition The Moth goes global

The non-profit 'slam storytelling' competition was founded in 1997 by the novelist George Dawes Green and has seen Malcolm Gladwell, Salman Rushdie and Molly Ringwald all take their turn at the mic
Pakistani women come out fighting: A hard-hitting play focuses on female Muslim boxers

Pakistani women come out fighting

Hard-hitting new play 'No Guts, No Heart, No Glory' focuses on female Muslim boxers
Leonora Carrington transcended her stolid background to become an avant garde star

Surreal deal: Leonora Carrington

The artist transcended her stolid background to become an avant garde star
LGBT History Month: Pupils discuss topics from Sappho to same-sex marriage

Education: LGBT History Month

Pupils have been discussing topics from Sappho to same-sex marriage
11 best gel eyeliners

Go bold this season: 11 best gel eyeliners

Use an ink pot eyeliner to go bold on the eyes with this season's feline flicked winged liner
Cricket World Cup 2015: Tournament runs riot to make the event more hit than miss...

Cricket World Cup runs riot to make the event more hit than miss...

The tournament has reached its halfway mark and scores of 300 and amazing catches abound. One thing never changes, though – everyone loves beating England
Katarina Johnson-Thompson: Heptathlete ready to jump at first major title

Katarina Johnson-Thompson: Ready to jump at first major title

After her 2014 was ruined by injury, 21-year-old Briton is leading pentathlete going into this week’s European Indoors. Now she intends to turn form into gold
Syrian conflict is the world's first 'climate change war', say scientists, but it won't be the last one

Climate change key in Syrian conflict

And it will trigger more war in future
How I outwitted the Gestapo

How I outwitted the Gestapo

My life as a Jew in wartime Berlin
The nation's favourite animal revealed

The nation's favourite animal revealed

Women like cuddly creatures whilst men like creepy-crawlies
Is this the way to get young people to vote?

Getting young people to vote

From #VOTESELFISH to Bite the Ballot