Renate Vidruska vs Olga Badelka (2017)

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Renate Vidruska vs Olga Badelka
European Championship (Women) (2017), Riga, rd 5, Apr-15
Sicilian Defense: Old Sicilian. Open (B32) · 0-1

ANALYSIS [x]

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Apr-30-18		stst: oh ... hallucination.. the WR was gone in first move QxR... no more... so Rf1 is already MATE....

Apr-30-18		agb2002: Black has a bishop for a rook and a pawn. White threatens Qxg5 and Qe6+,Qxh3. Black can deliver mate in three with 32... Qxg1+ 33.Kxg1 Be3+ 34.Kh1 Rf1#. The alternative 32... hxg2+ 33.Rxg2 Qf1+ (33... Qe1+ 34.Rg1 Rf1 35.Qe6+ wins for White) 34.Rg1 Qf3+ 35.Rg2 Qf1+ (35... Qd1+ 36.Rg1 Qxd5+ 37.Qe4 + -) only achieves perpetual.

Apr-30-18		saturn2: Q,B,R in this order achieve mate in 3.

Apr-30-18		AlicesKnight: 32...Qxg1+ 33. Kxg1 Be3+ 34. Kh1 Rf1# looks good.

Apr-30-18		leRevenant: Monday Q-sac follows Sunday Q-sac like night follows day, c'est logique, non ?

Apr-30-18		malt: Traditional Monday Sac 32...Q:g1+ 33.K:g1 Be3+ 34.Kh1 Rf1#

Apr-30-18		morfishine: <32.Qxg1+> King take <33.Be3+> King move <mate>

Apr-30-18		dTal: Ah, my Monday pick-me-up, solved it in an instant.

Apr-30-18		cocker: 32 ... Qxg1+ is the only winning move.

Apr-30-18		patzer2: White's decisive mistake was 31. Qxe4?, allowing 31...Qxf2 32. Qxg6 Qxg1+ -+ (-6.22 @ 32 ply, Stockfish 9 analysis of move 31...?) which begins the three-move back rank mate solving today's Monday (32...?) puzzle. Necessary instead was 31. Bg3 = to ⩱ (-0.22 @ 32 ply, Stockfish 9 analysis of move 31.?).

Apr-30-18		Once: That was fun. Remove one defender of the back rank, then a bishop check to kick the white king away from defending the back rank. Then a back rank mate. Sweet.

Apr-30-18		zb2cr: Mate in 3 follows 32 ... Qxg1.

Apr-30-18		sfm: <patzer2: White's decisive mistake was 31. Qxe4?..> Thank you. That late! 28.e4(!!) was a diabolic trap by WIM Badelka. White is a reasonably strong player, around 2100. She still fell into the trivial 31.Qxe4??,Qxf2 32.Qxg6(?),Qxg1+ While 'everything can happen to anyone' there is a special reason making it more likely here. The black pawn on h3! It takes no part in the combination at all - but it steals all the attention: what happens on 32.-,hxg2+ ? White must certainly have spent time on calculating the most obvious move in the position, 32.-,hxg2+, and the checks. And she carefully convinced herself of the lines given by <agb2002> where Black will have to accept a draw. In complicated positions even trivial things are easy to miss. The trick of seeking complications in a bad position, even at the cost of making it factually worse, is as old as chess itself. Even a cheap shot might just turn the tables ;-)

Apr-30-18		Pchief: On move 30 White simply plays gxh3 and then 30...fxe4 31.Bg3 e3 32.Rg4 there seems not to be much thing Black can do

Apr-30-18		keypusher: I was distracted for a while by the pawn on h3. This puzzle would be a lot easier if it wasn't there! As sfm says, no doubt Vidruska was distracted too.

Apr-30-18		Cheapo by the Dozen: What's fun about this one is that the pawn on h3 is basically irrelevant.

Apr-30-18		Cheapo by the Dozen: Upon review, the puzzle should have started a move earlier and been run a day later. :)

Apr-30-18		messachess: Wow. This was easy.

Apr-30-18		psionl0: Ahh! Classic Monday. A Queen sac followed by a quick mate and all of White's moves forced. A 10 second solution. A personal best for me.

Apr-30-18		takchess: 1 for 1 for the week. Hope Springs Eternal.

Apr-30-18		john barleycorn: <psionl0: ... A 10 second solution. ...> Yes, but there is one thing I never figured out. How can (experienced) players run into such a desaster? I mean we are challenged to find the finishing blow being quite elementary to anybody who has worked through a book of tactical exercises. Haven't the players? The "mistake" of allowing such a kill must be earlier than the position indicates.

Apr-30-18		mel gibson: <Apr-30-18 Premium Chessgames Member keypusher: I was distracted for a while by the pawn on h3. This puzzle would be a lot easier if it wasn't there! As sfm says, no doubt Vidruska was distracted too.> Me too - distracted by that pawn. I feel so embarrassed that I didn't see this checkmate. I should have looked longer than 20 seconds. Well - that's what chess is all about - you either see the moves or you don't.

Apr-30-18		keypusher: < john barleycorn: <psionl0: ... A 10 second solution. ...> Yes, but there is one thing I never figured out. How can (experienced) players run into such a desaster? I mean we are challenged to find the finishing blow being quite elementary to anybody who has worked through a book of tactical exercises. Haven't the players? The "mistake" of allowing such a kill must be earlier than the position indicates.> Some people did not solve this puzzle; even though most of us would get find the solution in a book of tactical exercises, in real games you don't get a big stop sign and a note "Wait! Look around! There's a killer move here!" Each of us, including you I'm sure, have overlooked much more elementary threats than this. (You know about Kramnik and the mate in one, right?) Here White had a lot to think about in a very complicated and sharp middlegame, including a frontal attack on the f,g, and h files, and the advance of Black's e-pawn. If she were posting she'd probably say, "let me show you all the stuff I <did> see. Or tried to." click for larger view If I'm White, I'm thinking about all sorts of terrible things, but probably not a back-rank mate. After 30....fxe4 White could have stayed in the game with 31.Bg3, but allowing 31....e3 doesn't look very appetizing. More natural-looking bishop moves lose: 31.Be3 Bxe3 32.Qxe3 hxg2+, or 31.Bd4 e3!. White had probably made up her mind to play 31.Qxe4 a move earlier, since Rg1 frees the queen from defending g2, making the attack on Black's rook real (well, almost real). After 31....Qxf2 of course it doesn't matter what she plays, since at best she's a piece down for nothing. Maybe she saw the combination and decided to allow it; more likely she overlooked 33....Be3+. For all we know she had 10 seconds left on her clock. In any case, mistakes, like misfortunes, seldom come singly.

Apr-30-18		ChessHigherCat: <keypusher: I was distracted for a while by the pawn on h3. This puzzle would be a lot easier if it wasn't there! <Cheapo by the Dozen: What's fun about this one is that the pawn on h3 is basically irrelevant.> There's an interesting parallel between composed vs. real-game puzzles, on the one hand, and mystery novels vs. real-life crime investigations, on the other: in a novel, almost every detail and every character is sure to be relevant (except in case of deliberate red herrings) but in a crime investigation at least 90% of the clues lead nowhere. If you're thinking in the composed puzzle mode you can get hung up on the h3 pawn because "it must be there for a reason". [I can already sense Boring Propaganda Tool's stupid response coming up...]

Oct-18-20		Messiah: Very nice finish, White should have been in a terrible time trouble.

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