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James Mortimer vs James Mason
London BCA (1887)  ·  Philidor Defense: Exchange Variation (C41)  ·  0-1
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find similar games 6 more J Mortimer/J Mason games
sac: 36...Rxb2+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Feb-13-12  TheoNov: Definitely harder than your average Monday POTD. One is almost obligated to first look at the N checks at d2 and c3, and try and find "some way" to get mate with R on c1, all of which fail in this case. So it took me a couple of minutes to give up on these and then imediately found the mate-in-5 starting with 36...Rxb2.
Feb-13-12
Premium Chessgames Member
  keypusher: <desiobu: Nice puzzle, although a little tougher than a typical Monday.>

Yes, I was pretty upset when I saw that there was no queen to sacrifice. But I figured the rook was the next best thing.

Feb-13-12
Premium Chessgames Member
  kevin86: A little complicated for a Monday-looks like a Tuesday puzzle.

The rook sac leads to an Arabian Mate at a2 or c2,aided by a knight at c3 and the pawn b3

Feb-13-12  MaczynskiPratten: <memethecat> I saw 38...b2+ after 38 Ka1 but I don't think it works. Yes, 39 Ka2 Nc3#. But after 39 Kb1, the Rook on c2 hangs because the b3 pawn has gone (retained image?) and Black actually loses! So it seems it's mate in 5, nothing quicker.
Feb-13-12  MiCrooks: I find it interesting the number of people who see the mate when the Rook is accepted but missed it (at least initially) when the Rook is declined. The pattern is exactly the same, but with other options available due to both Rooks being on the board a number of people overlooked it in favor of moves like b2.

A curious form of chess blindness...the wealth of options perhaps?

Feb-13-12
Premium Chessgames Member
  Patriot: <MiCrooks> <The pattern is exactly the same, but with other options available due to both Rooks being on the board a number of people overlooked it in favor of moves like b2. A curious form of chess blindness...the wealth of options perhaps?>

It could be both. Chess blindness "happens" sometimes. But your second point could mean not looking "wide before you look deep". I didn't even consider b2 so it could be I'm guilty of that. With the knight nearby, I focused more on how to make the knight and rook work together. I used those "elements" while some used the element of a passed pawn. So it could be just a matter of what caught our eye first, which is like luck.

Feb-13-12
Premium Chessgames Member
  Marmot PFL: easy if you are familiar with the mating pattern of R+N vs K in the corner. Not trivial as it takes 4 moves from the diagram.
Feb-13-12
Premium Chessgames Member
  chrisowen: Light cap in evry it is lodge rd4 and lion c2 bed in labour ner.

Rook Bob slide in second rank rb2+ object off in abroad it took

in DJ aims it pawn low a1

King shoo in feather it zam at a stroke culled in one fell swoop

in er good five total for rook a2 won knightc3+ over sport!

Champ smoked cough up along rank in gold castle for sole defence

catch 0l I c1 lest ill c4 foiled.

Cobble rook camp take me back too night date for Clare M a

nincompoop again was I seedling tools in desire I fluffed it.

But rich in a3? Kapow b2 rook bridge sac in frank to fulcrum it

teach in dad whisk off cfile dominance blacks aim when going

long I nearly it down c1 badge green count none for me. Ra James!

Feb-13-12
Premium Chessgames Member
  M.Hassan: <newszild:...but both of us missed the quickest line of all.....>

Right

Feb-13-12
Premium Chessgames Member
  Memethecat: <MaczynskiPratten> No wonder nobody else used that line. Disastrous, blunder on a Monday, & there I was singing my own praises.
Feb-13-12  BOSTER: <Patriot> < not looking "wide before you look deep">.

I guess your teacher taught you <Go wide in your analysis before you go deep>.

Feb-13-12
Premium Chessgames Member
  eternaloptimist: Once I figured out the solution I saw that the checkmating pattern is an Arabian mate as <kevin86> already pointed out. The Arabian mate is probably the oldest checkmating pattern as it dates back to the 1400s at least. Interestingly enough I contribute chess puzzles a couple of times a month in a local biweekly paper in a column that my friend started a few months ago. It's his article but he wanted me to contribute to it a couple of times a month. A puzzle of mine that I submitted to him the other day that will go in it soon involves an Arabian mate. I agree w/ <kevin86> that this puzzle is a little more complicated than a typical Monday puzzle. It's better suited for a Tuesday puzzle.
Feb-13-12
Premium Chessgames Member
  Domdaniel: <Patriot> - < I didn't even consider b2 so it could be I'm guilty of that. With the knight nearby, I focused more on how to make the knight and rook work together.>

Same process here. R+N, checks all the way to mate, and just three lines, all forcing. Simply no need to get messy with the b-pawn.

I often *like* messy, but there's a time and place. The two distinct mate patterns here -- the simple Nc3/Ka1/Ra2 (which doesn't even need the b3-pawn), and the more elaborate Nc3/Kc1/Rc2 (with pawn protecting Rook, and Knight covering b1 and d1) -- should be pretty automatic.

Though I can understand those who found this a little tougher because there were so many options. Happens to all of us sometimes.

Feb-13-12  VincentL: "Very Easy".

I did not see this immediately.

36.....Rxb2+ mates.

37. Kxb2 Rc2+ 38. Ka1 Ra2+ 39. Kb1 Nc3+ 40. Kc1 Rc2#. Or 38. Kb1 Nc3+ 39. Ka1 Ra2#

If 37. Ka1 the mating sequence is one move earlier (37....Ra2+ 38. Kb1 Nc3+ 39. Kc1 Rc2#).

Letīs check.

Feb-13-12  CHESSTTCAMPS: Mate-in-5 on a Monday. I like it.
Feb-13-12  1stboard: Nice Puzzle.

In reviewing the game, I really could not find an error move on white's part. It is interesting to note that after black's 24th move Ne4, how blacks game then just played itself. The knight seemed to control all the important squares ( Nimzovitch couldn't have been prouder ).

I wonder if white on move 23 should have played bxc3 ( instead of 23 Bxc3 ) as that would have prevented black on move 23 playing Nc5.

Feb-13-12
Premium Chessgames Member
  DarthStapler: Got it
Feb-13-12  stst: Easy & Interesting, two ways, similar though:
36.... RxP+
37.KxR Rc2+
38.Kb1 (or *Ka1, see below) Nc3+
39.Ka1 b2#

IF *38.Ka1 b2+
39.Ka2 b1--->Q#

Feb-13-12
Premium Chessgames Member
  DarthStapler: B1Q+ is not mate in your line, instead of 38...b2+, the answer is 38...Ra2+ 39. Kb1 Nc3+ 40. Kc1 Rc2#
Feb-13-12  Nullifidian: Almost missed getting my answer in, but here it is:

36... Rxb2+

If 37. Ka1 then 37... Ra2+ 38. Kb1 Nc3+ 39. Kc1 Rc2#

If 37. Kxb2 then 37... Rc2+ and mate as above.

Feb-14-12
Premium Chessgames Member
  LIFE Master AJ: 36...RxP/b2+; and Black mates in just a few.
Feb-14-12
Premium Chessgames Member
  LIFE Master AJ: J - from AL

I think you have to do it all wht check ... otherwise White plays Rd2.

Feb-14-12  Nemesistic: J - from AL, ignore this complete bufoon.. Just open an account here, there are so many better players who aren't insane and would be willing to help you.. Thats if you exist J, LMAJ is well known for his lies..
Feb-14-12
Premium Chessgames Member
  gawain: It would have been nice of Mortimer to play it out to mate. It's pretty enough.

I agree with those who said it was harder than the usual Monday. But once you see that the first move has to be Rxb2+ (because everything else is obviously useless) the combination plays itself.

Feb-14-12
Premium Chessgames Member
  LIFE Master AJ: <<I agree with those who said it was harder than the usual Monday. But once you see that the first move has to be Rxb2+ (because everything else is obviously useless) the combination plays itself.>>

A very accurate statement, its easier when all of your moves are CHECK ... kinda cuts down on the opponent's possible options.

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