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Oleg Romanishin vs Slavoljub Marjanovic
EU-ch U20 fin-A (1972), Groningen NED, rd 5
King's Indian Defense: Fianchetto Variation. Yugoslav System w/o Nc3 (E64)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Jun-22-12  solskytz: Complex calculations!!

But this time I decided to hang on, the full minute and a half, and do the math.

1. Rxh7+ Kxh7 only move

2. Qe7.

If ...Kh8 then 3. Qxf8+ Kh7 4. Bg8+ Kh8 5. Be6+ Kh7 6. Qg8+ Kg5 7. f4 mate

if ...Kh6 then 3. Qxf8+ Kg5 4. Qf4 mate or 3...Kh7 4. Bg8+ and the rest as above

if ...Rf7 then 3. Qxf7+ Kh8 4. Qg8 mate or 3...Kh6 4. Qf8+ Kg5 5. Qf4 mate or 4... Kh7 5. Bg8+ and the rest as in the first variation, although there Bg8+ is move four.

Proud of it!

Jun-22-12  solskytz: Heh! I see that in the game white chose something else than my 'chirurgical' Bg8 check...

there's beauty in his solution, too :-]

Jun-22-12  sevenseaman: <scormus> <But I'll take what satisfaction I can that the first line I went with was the game continuation. After all, a 8-move # is something I dont often get.>

It would be rare good chess players who can spot the 8-mate all at once. The thought that pushed me into the combination was that my R sac was immediately coming back and with my lsb rightly pointed I'd be able to crowd the Black K out of his lair. When I force him to step out into the porch on g5 I had men waiting.

The game line was my first line too. Perhaps game continuation is the most natural line with a stream like flow. Only decision that came up for me was at the 38th, Q or B. Q made more sense.

When the moves are all forcing, it matters little whether its 8-mover or 12-mover or whatever. Still a good job.

Jun-22-12  rilkefan: I had planned 38.Bg8+. Didn't work it out to the end with board vision, but I probably would have entered this line anyway given the white forces available against the black king and the embarrassed black rook.
Jun-22-12  BlackSheep: 35.Rxh7 , Kxh7
36.Qe7+ , Kh6 37.Qxf8+ , (Kg5 ,Qf4#) Kh7
38.Qg8+ , Kh6
39.Qh8+ , Kg5 40.f4 , (Kf5 , Qe5 , Kg4 , Bf3#)or
40.f4 , Kg4
41.Bf3+ , Kf5
42.Qe5#
all forced so I'm happy with this one there may be a snazzier way of doing it but this works for me (unless of course I've overlooked something which I dont think I have)
Jun-22-12  BlackSheep: Aaah , Bg8+ - e6+ intermezzo is a bit snazzier I guess just repositioning the Bishop a min but I'm still pleased all the same , its nice to get a Friday all the way to the end and I havent been here much lately the Euro has been consuming the last fortnight
Jun-22-12  Memethecat: 35.Rxh7+ Kxh7 36.Qe7+

Black now gets to choose how he loses, there's a bunch of ways to get the k to h6 & the Q to check it from f8 or h8, they all lead to mate, here are a few possibilities.

36...Rf7 37.Qxf7+ Kh6 38.Qf8+ Kg5 39.Qf4#

36...Kh6 37.Qxf8+ Kg5 38.Qf4#

36...Kh8 37.Qxf8+ Kh7 38.Qg8+ Kh6 39.Qh8+ Kg5 40.f4+ Kg4 (40...Kf5 41.Qe5+ Kg4 42.Bf3#) 41.Bf3+ Kf5 42.Qe5#

Jun-22-12  Memethecat: If only all Fridays were this easy!
Jun-22-12  LoveThatJoker: <sevenseaman> I did read your original post. I liked what you said about the alternate solution in question being the diamond cutter's variation.

That was cool!

LTJ

Jun-22-12
Premium Chessgames Member
  chrisowen: Dead cert for first few moves second half business for successes

left hes hanging rookh7+ as par to the wind a king takes and queen

follows up lick at e7+ too fit your comeback efface in checking

untill dare yes price for dinner could have been quicker it giving

34.qg7+ but Oleg infuses h4 to trap his majesty leaves him

scrabbling up the board to be queen bishop mated f3 go figure this

looks like a good removal in easy it would again white have the

upperhand once d6 baby long time fall it drive in front seat light

queen bully again king around fat chance too create a counter-strike

since swarming it all over h4+ inceed a mate in 9 a jiffy or ickle a

kings cull in g7 mate in six it just goes to show in manage the

sacrifice exchange is the crux of the matter e7 after h7 urges in

kid adventure stint in glesson get active queen before embarking

side again c rook d rites often passage blacks king un-hinged flop

in e6 reason being Romanishin too clever on i break it pot hole e6

oh god loving piece branch im e6 an tame king queen hunt in the end!

Jun-22-12  WhiteRook48: Of course 35 Rxh7+ Kxh7 followed by 36 Qe7+

a) 36...Kh8 37 Qxf8+ Kh7 38 Bg8+ Kh8 39 Bf7+ Kh7 40 Qg8+ Kh6 41 Qh8+ Kg5 42 f4+ Kg4 43 h3+ Rxh3 44 Qxh3#

b) 36...Rf7 37 Qxf7+ Kh6 38 Qf8+ Kg5 39 h4+ Rxh4 (39...Kg4 40 f3#) 40 f4+ Rxf4 41 Qxf4+ Kh5 42 Bf3#. If 40...Kh5 then 41 Bf3+ Rg4 42 Qh8#

c) 36...Kh6 (actual line) 37 Qxf8+ Kh7 38 Qg8+ Kh6 39 Qh8+ Kg5 40 f4+ Kg4 41 Bf3# (or 41...Kf5 42 Qe5+). I missed this line in the actual game, I thought 38 Bg8+?? was the move.

Jun-22-12  cydmd: I'm very honored and pleased to see many positive comments from that smart community about the solution I gave to that puzzle 8 years ago. Comments came up again since <LTJ> "rediscovered" it.

Thank you, guys.

Jun-22-12  Marmot PFL: As sometimes happens later in the week, I didn't see the solution the first time I looked at this. When I came back later saw it ina bout 30 seconds. Actually white doesn't have that many options.

<untill dare yes price for dinner could have been quicker it giving 34.qg7+ but Oleg infuses h4 to trap his majesty leaves him scrabbling up the board to be queen bishop mated f3 go figure this >

That must be why the puzzle starts on move 35, 34 Qg7+ would be too easy for Friday.

Jun-22-12  LoveThatJoker: <cydmd> It is awesome for me to have solved today's puzzle and have found/posted all the possible variations available in this most excellent alternate solution.

Thanks for mentioning me in your post today!

LTJ

Jun-22-12  eatingcake: I also found the 38. Bg8+ line and I'm quite proud of it. :) I agree that the puzzle is easier than yesterday's, but it's a rough categorization anyway and there's going to be a range of difficulties for a given day, as well as different things that different people find easy or difficult. It seems like there are a few saying "too easy" practically every day, and it just diminishes the satisfaction others get from solving them.
Jun-22-12  TheBish: Romanishin vs Marjanovic, 1972

White to play (35.?) "Difficult"

White is down an Exchange for a pawn, but Black's king is exposed.

35. Rxh7+! Kxh7 36. Qe7+ Kh6

Transposing are 36...Kh8 37. Qxf8+ Kh7 and 36...Rf7 37. Qxf7+ Kh6 38. Qf8+.

37. Qxf8+ Kh7

Or 37...Kg5 38. Qf4#.

38. Bg8+ Kh8 39. Be6+! Kh7 40. Qh8+ Kg5 41. f4#.

~~~~~~~~~~~~~~~~~~~~~

Ha! I found a quicker mate (by one move). Victory is mine!

Jun-22-12  fref: In the actual game, does 40.h4+ works also?
Jun-22-12  LoveThatJoker: <TheBish> Your line is incorrect, as 40. Qh8+?? Kxh8 .

LTJ

Jun-22-12  bachbeet: I'll give myself most of the points for this one because I saw the first key move and some of the following ones which led to a taking of the rook and check, etc. I didn't carry it through because I felt that the first few moves sealed the victory and black's outlook was hopeless. Black's Q was reduced to a bystander.
Jun-22-12  Oxnard: Nowhere near as intricate as yesterday's puzzle.
Jun-22-12
Premium Chessgames Member
  gawain: Gee, beyond Qc7+ I just could not see how the king hunt would go. Failure of vision.

I wonder if it would help if I set up with 3-D board and pieces instead of trying to do it with the diagram alone.

Jun-22-12
Premium Chessgames Member
  brankat: <gawain> It would definitely help :-)
Jun-22-12  Nullifidian: This doesn't strike me as that difficult, since almost every move is forced.

35. ♖xh7+ ♔xh7 36. ♕e7+

And now that the rook is gone anyway, you might as well play...

36... ♖f7 37. ♕xf7+ ♔h6 38. ♕f8+ ♔h7 (♔g5 39. ♕f4#)

Now I'd play 39. ♗g8+ because the resulting pattern is an aesthetically pleasing model mate.

39... ♔h8 40. ♗e6+ ♔h7 41. ♕g8+ ♔h6 42. ♕h8+ ♔g5 43. ♙f4#


click for larger view

Jun-23-12  scormus: <gawain: ... vision> I think you just have to dare. For a long time I wouldnt try to see past about 4 moves, its tough when the other player has several options. But when its forcing then you can keep pushing the limit of your vision, 6, 8, even 10 moves. <Sevenseaman> made a good comment about that.

These puzzles are great for that, and the practice will improve your tactical play OTB

Jun-23-12  dragon player: The first move is obvious, but the rest isn't:

35.Rxh7+ Kxh7
36.Qe7+ Kh8

36...Kh6 37.Qxf8+ Kh7 (37...Kg5 38.Qf4#) transposes.

37.Qxf8+ Kh7
38.Qg8+ Kh6
39.Qh8+ Kg5
40.h4+ Kf5
41.Qf8+ Ke5
42.Qf4#

Time to check.

-----------------

The game went slightly different, but mate is mate.

5/5

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