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Marsel Efroimski vs Tsegmed Munkhchuluun
Dresden Olympiad (Women) (2008), Dresden GER, rd 6, Nov-19
French Defense: Tarrasch Variation. Chistyakov Defense Modern Line (C07)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jun-12-18  ChessHigherCat: It's downright insewerubrious
Jun-12-18  njchess: There is no obvious mating attack, so time to simplify to a winning end game for Black with 41. ... ♖a2xe2 42. ♖xe2 ♖g1+ 43. ♔d2 ♖xb1 44. ♔c2 ♖a1 45. ♔b3 ♖a3+ 44. ♔xb4 ♖xg3 -+ The rest is academic. Time to see when White resigns.
Jun-12-18  Walter Glattke: I skrewed up myself with wrong positions, here the correction: 41.-Rg1+ 42.Bf1 Rh2 43.Rxb4 Ka7 44.Reb3 Rh1 45.Rxb6!? Rxf1+ 46.Kd2 Rd1+ 47.Kc3/e3 Rd3+ seems to be an option to 41.Rxe2+
Jun-12-18  patzer2: Black could have improved earlier by playing 31...e5 ∓ (-0.93 @ 31 ply, Stockfish 9 analysis of move 31...?) instead of 31...Ne4? 32. b3 +- (+1.08 @ 33 ply, Stockfish 9 analysis of move 32.?).
Jun-12-18  patzer2: After Black's mistake with 31...Ne4?, White misses a win with 36. b4 (+1.33 @ 32 ply, Stockfish 9 analysis of move 36...?).

Instead, 36. Bd1 +- (+2.23 @ 31 ply, Stockfish 9 analysis of move 36.?) wins by threatening to trap one of the Black Rooks on the second rank, which gives White time to secure a decisive passed pawn after 36. Bd1 Rf2+ 37.Ke1 R(c)d2 38. b4 +- (+2.82 @ 24 ply, Stockfish 9 analysis of move 38.?).

Jun-12-18
Premium Chessgames Member
  drollere: one of the oldest rules in chess: when you're ahead with well protected material (in this case, three pawns): simplify.
Jun-12-18
Premium Chessgames Member
  gawain: I figure the puzzle is solved after 43 ...Rxb1. Two extra pawns ought to be enough.

Nice skewer.

Jun-12-18
Premium Chessgames Member
  whiteshark: This week (at) chessgames.com: skewer tactics
Jun-12-18  sfm: <drollere: one of the oldest rules in chess: when you're ahead with well protected material (in this case, three pawns): simplify.> Right! And we can safely add "- especially if the simplification includes netting a piece!"
Jun-12-18  sfm: <patzer2: White's decisive mistake was 41. Be2?, allowing today's Tuesday puzzle solution 41...Raxe2 -+.

Instead, 41. Re2 = (0.00 @ 25 ply, Stockfish 9 analysis of move 41...?) would've held it level.>

As always: thanks. I think most visitors find the solution easily, and those who don't will find numerous replies here. The question "where was the decisive mistake?" seems rarely to be a topic of dissussion - maybe because it is often orders of magnitudes harder to answer.

Aug-03-18  stacase: White's a Bishop up, how does Black get rid of the Bishop - easy, take it and then nail White's Rook with 42...Rg1+
Aug-03-18  NBZ: Nice puzzle, though I remember it from not so long back. No complaints though, given the circumstances! Keep 'em puzzles coming!
Aug-03-18  stst: Similar repeat as days ago...
Difficult becomes easy...

41....... RaxB+
42.RxR Rg1+
43.K any legal, RxR
and Black got more pawns

Aug-03-18
Premium Chessgames Member
  sjunto: 1. I got a Friday puzzle! (Well, the skewer: I thought 6 pawns to three was calculable.

2. I know I've seen something very much like this recently.

Aug-03-18  messachess: Pretty easy actually.
Aug-03-18  SpamIAm: <NBZ>, <sjunto>, the posts are being 'recycled' because chessgames.com is on autopilot. The gentleman in charge, Daniel Freeman, passed away suddenly a little over a week ago. :(
Aug-03-18  ChessHigherCat: I came up with this:

41...f4 42. Rxe4 f3 43. Bf1 f2+ 44. Kd1 Rg1 45. Re1 fxe1=Q+ 46. Kxe1 Rxg3

I didn't recognize either of the given names as women's names until I saw it was a women's tournament.

Aug-03-18  ChessHigherCat: I didn't even consider gxf4, which leads to the game line: 41...f4 42. gxf4 Raxe2+ 43. Rxe2 Rg1+ 44. Kf2 Rxb1
Aug-03-18  Ratt Boy: <SpamIAm:>
So sorry to hear that! I was planning to leave something about "too easy for a Friday" (defined as "a Friday that I have a clue of getting"), but now I'm sad to hear about Mr. Freeman's passing.
Aug-03-18  CHESSTTCAMPS: Black has three pawns for a piece, a rough material equality, but the two rooks on the 7th rank are far better than white's passive rooks. Black can cash in immediately with 41... Raxe2+ 42.Rxe2 Rg1+ 43.Kf2 (Kd2 Rxb1 44.Kc2 Ra1) Rxb1 with a simple win.

Looks like a skewer theme this week.

Aug-03-18
Premium Chessgames Member
  sjunto: Aha! Don't know much about Mr. Freeman, but he made some fun puzzles. RIP, and I hope whoever replaces him does half the job.
Aug-03-18
Premium Chessgames Member
  whiteshark: Here we go again...
Aug-03-18  Cheapo by the Dozen: I've kibitzed a lot of games with notes "This would make a great puzzle". Numerous other folks do it too. I suggest a simple word search on "puzzle" to find such games.
Aug-03-18  NBZ: I am very sorry to hear about Mr. Freeman's passing.

<Cheapo by the Dozen> I am sure they will get around to implementing this! But transition periods are always hard, and I imagine this is no different.

Aug-03-18  tjshann: Yeah, this was a Tuesday puzzle on June 12.
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