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Simon Kim Williams vs Mark Hebden
Hastings (2005/06), Hastings ENG, rd 8, Jan-04
King's Indian Defense: Six Pawns Attack (E77)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Aug-12-13  Bartimaeus: White has superiority in material and position. Simply need to wrap this up and the Queen does the honors.

39. Qxh7+ Kxh7 40. Rh2+ Bh4 41. Rxh4#

Aug-12-13  lost in space: I love Mondays!

39. Qh7+ Kxh7 (forced) 40. Rh2+ Bh4 (forced) 41. Rxh4#

Aug-12-13  LJLMETAL: On Black's 38th move; his best move is

38... Qf6

After that white might continue with

39. Rg7, Qxg7
40. Rxg7, Kxg7

That is the best way for black to prevent checkmate

Aug-12-13
Premium Chessgames Member
  Sneaky: <<hackmate> So why is this called the lawnmower mate?> This photo should illustrate: http://www.ok4me2.net/wp-content/up...
Aug-12-13  M.Hassan: 39.Qxh7+ and that's it
Good old Mondays
Aug-12-13
Premium Chessgames Member
  agb2002: White has a rook for a bishop and a pawn.

Black threatens 39... fxg2+.

Pattern recognition finds 39.Qxh7+ Kxh7 40.Rh2+ Bh4 41.Rxh4# immediately.

Aug-12-13  bachbeet: The usual Q sac. I actually had to look at this a while to make sure I wasn't missing something. Just seemed too easy.
Aug-12-13  stacase: Wham bam!
Aug-12-13  TheaN: Monday 12 August 2013

<39.?>

Three big pieces in and around the g- and h-file suggests a battering ram lawnmower mate:

<39.Qxh7+ Kxh7 40.Rh3+ Bh5 41.Rxh5# 1-0> decides.

Aug-12-13  Nick46: Back on track with a queensac and a spot of lateral thinking. Thank you (to whoever sets these POTDs).
Aug-12-13  zb2cr: I thought I had seen this one from <cg.com> before, and I was right--Sept. 2, 2008. Funnily enough, on that occasion it was a Tuesday puzzle, and a number of people stated that it was too easy for a Tuesday.
Aug-12-13
Premium Chessgames Member
  morfishine: 39.Qxh7+ Kxh7 40.Rh2+ Bh4 41.Rxh4#

*****

Aug-12-13
Premium Chessgames Member
  Oxspawn: Is Wednesday (sometimes Tuesday) the only day of the week where a very moderate player faces a challenge? Monday too easy, Thursday to Sunday out of reach. Tuesday alternates between acting as Monday or Wednesday. Of course, which day hits your sweet spot depends on your skills as a player, but the bar does seem to be set low at the start of the week. My economics degree spent an age explaining the difference between supply and demand, and once it had me in a state of casual over confidence hit me with the Offer curve and other impenetrables. Could we introduce Mondnesday?

39 Qxh7+ Kxh7
40 Rh2 Bh4
41 Rxh4++

Aug-12-13
Premium Chessgames Member
  whiteshark: <39.Qh7+>, and that's it.
Aug-12-13  cyclon: 39. Qxh7+ Kxh7 40. Rh2+ Bh4 41. Rxh4X.
Aug-12-13
Premium Chessgames Member
  OhioChessFan: <Oxspawn: My economics degree spent an age explaining the difference between supply and demand, and once it had me in a state of casual over confidence hit me with the Offer curve and other impenetrables. >

I happened to mention the term "inelastic demand" yesterday at church, and for some inexplicable reason, my minister was fascinated by it. He even had me draw a graph with supply and demand curves to show how it worked. I was sweating bullets to remember which axis was price. Such simple points tend to get hazy after 30 years of disuse.

As for the days, I notice the dramatic increase in difficulty too. But with only 7 days to work with, if they go up in ELO complexity 150 points a day, that's a pretty steep learning curve, and Sunday will only be 900 points harder than Monday. I truly admire the people who can spend an hour on a Sunday puzzle. I generally take a quick look and if I don't intuitively get moving in the right direction, I give up.

Aug-12-13  bubuli55: This is easy. 39.Rg3 wins. White is quality up. Black R can't take W fpawn. And B fpawn can't be defended. Why end the game in 2 moves when there are so many pawns Qside to hunt? I guess it all depends on one's style of play. :)

39.Rg3 Bf6 40.Qh6 Be7 41.Qxe8+ Bxe8 42.Rg8#

39.Rg3 h5 40.Qxh5#

Aug-12-13  bubuli55: < Oxspawn: Is Wednesday (sometimes Tuesday) the only day of the week where a very moderate player faces a challenge? Monday too easy, Thursday to Sunday out of reach. Tuesday alternates between acting as Monday or Wednesday. Of course, which day hits your sweet spot depends on your skills as a player, but the bar does seem to be set low at the start of the week. >

If I may suggest, give yourself a time limit. :)

What I do? I try it at 3am. Or take a few shots first before trying.

Aug-12-13  pericles of athens: After the Queen sac, white's rooks are blazing down the g and h files, mating.
Aug-12-13  gars: God save the Mondays!
Aug-12-13
Premium Chessgames Member
  kevin86: The queen sac set the stage for the steamrolling rooks to do their maximum and wipe out the defenseless king.
Aug-12-13  belgradegambit: Too easy even for a monday.
Aug-12-13
Premium Chessgames Member
  Gilmoy: Canonical: <I have three rookalikes, you have a pawn>. Reduces by force to a two-rookalike mate. "Lawnmower" if it really is two rooks, sometimes Anastasia when it isn't. It underlies numerous themes, e.g. the BB-sac.

Two ideas for Black: 37..Qd3 38.Rbg1 Qxf5> guarding h7, or <37..exf4 38.Rbg1> Qf3 pinning the front R for a while.

Scrolling back several moves, <18.g4!?> was an audacious way to neuter Black's threat of f3. <24.a5 25.Nc3> is a decisive strategic plan: White's patient non-Bayonet freezes Black's Q-side play.

<29.b5 30.Rab1> looks annoying: the implied threat of Rb7-Ra7 goads Black to crash through on the K-side, or die trying.

Aug-12-13  Doniez: Hey hey it's Monday again! Sac the Queen and slide the Rook! My favourite puzzle after a long sunny day on the beach :-)))
Aug-12-13
Premium Chessgames Member
  gawain: It took me a ridiculously long time to see that 39 Qxh7+ Kxh7 and the simple 40 Rh3+ gives mate next move. I was experimenting with all kinds of other moves.
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