Ioannis Stavrianakis vs Ulrich Weber (2008)

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Ioannis Stavrianakis vs Ulrich Weber
Bad Wiessee Open (2008), Bad Wiessee GER, rd 7, Nov-07
Trompowsky Attack: General (A45) · 1-0

ANALYSIS [x]

FEN COPIED

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Sep-25-18		Walter Glattke: 43.-Kh8 44.Rh1+ Qh7 45.Qxh7#

Sep-25-18		stacase: I spent too much time thinking it couldn't be this easy. But it was.

Sep-25-18		backyard pawn: 42. Rxh7+ skewering the black queen. The rest is forced: Kxh7 43. Qxg6+ Kh8 44. Rh1+ Rh3 45. Rxh3+ and mate in a couple more moves. Maybe there is a faster way?

Sep-25-18		saturn2: I had 42. Rxh7+ Kxh7 43. Qxg6+ Kh8 44. Rh1+ Rh3 45. Nxh3

Sep-25-18		backyard pawn: Continuation to my post: 45... Qxh3 46. Nxh3

Sep-25-18		mravikiran: 40. ... d3? was bad. Don't provoke a resting piece.

Sep-25-18		saturn2: In blitz sometimes I get as white 3...g5 4. Be5 f6 5. e3 fxe5 6. Qh5#

Sep-25-18		agb2002: White has two knights for a bishop and two pawns. The pawn on h7 protects the black bishop but only the black king protects this pawn. Therefore, 42.Rxh7+ Kxh7 43.Qxg6+ Kh8 44.Rh1+ wins.

Sep-25-18		lost in space: 42.Rxh7+ Kxh7 43.Qxg6+ Kh8 44.Rh1+ and no defense against mate

Sep-25-18		jith1207: 42. Rxh7+ Kxh7 43. Qxg6+ Kh8 44. Qh6+ Qh7 45. Qf8+ Qg8 46. Rh1+ Rh3 47. Rxh3# Is there a name for this unique mating pattern?

Sep-25-18		messachess: Another very easy. Fun.

Sep-25-18		Walter Glattke: 43.-Kh8 44.Qh6+ (jith) Kg8 possible, 45.Rg1+ Kf7 wins, 44.Rh1+ Rh3 45.Rxh3+ Qxh3 46.Nxh3 d2 47.Ng5 Rd7 48.Nxd2 wins.

Sep-25-18		clement41: Complications following 32...ba are worth calculating. The study addict will no doubt look at 33 gh Kf7 34 h8N+ although this is subpar

Sep-25-18		BjarneNielsen: <Walter Glattke> 47.Df6+ might be even better.

Sep-25-18		Walter Glattke: Also playable 47.Qe8+ Kg7 48.Qxd7 Kg6 49.Qxd2 all won, quick mate not found

Sep-25-18		Walter Glattke: Ah, 47.Nxd2 Rg7? 48.Qe8+ Rg8 49.Qh5#, the quickest mate then with 47.Nxd2 a5 48.Nf7+ Rxf7 49.Qxf7 b4 50.Nf3 a4 51.Nh4 a3 52.Ng6#

Sep-25-18		malt: 42.R:h7+ K:h7 (42...Kf8 43.Ng6+ Ke8 [43...Kg8 44.Ne7+ K:h7 45.Qg6+ Kh8 46.Qh6# ] 44.Qa8+ Qd8 45.Rf1 ) 43.Q:g6+ Kh8 44.Rh1+

Sep-25-18		Walter Glattke: No, 49.-b3 not -b4, e.g. 50.Nf3 bxa2 51.Nh4 a5 52.Ng6#

Sep-25-18		Whitehat1963: Now that’s a Monday/Tuesday puzzle!

Sep-25-18		Matloc: 22. cxd4? Black bishop is a pain, you can get rid of it with check, so why not? 31. Rh6?? Looking for trouble. White king is in cage, the knights out of the battle, one undefended rook left alone to guard last rank. If 31..Qa4, White loses. White attack is a joke.

Sep-25-18		thegoodanarchist: Pat on the back for moi

Sep-25-18		zb2cr: Very straightforward. 42. Rxh7+ starts things. The main line is 42. ... Kxh7; 43. Qxg6+, Kh8; 44. Rh1+, Rh3; 45. Rxh3+, Qxh3; 46. Nxh3 and White wins on the basis of being ahead by Q+2N vs. R+P.

Sep-25-18		Cheapo by the Dozen: I saw that 44 Rhi+ won massive amounts of material, and stopped there without also noticing the Rg1 mating idea.

Sep-25-18		patzer2: Sometimes, chess clichés can be helpful. Looking at today's Tuesday puzzle (42. ?), I remembered "always check it might be mate" and "examine every possible check and capture." So I did. First I looked at the exchange captures 42. Nxg6 hxg6 43. Rxd4 Qxd4 44. Qb7+ +- (+10.38 @ 33 ply, Stockfish 9). Although 42. Nxg6 +- simplifies to a piece up winning position, I remembered yet another chess cliché. "If you find a good move look for a better one." So for my second candidate move, I looked at the check 42. Rh7+! and calculated 42...Kxh7 43 Qxg6+ Kh8 44. Rh1+ +- (mate-in-four, Stockfish 9 @ 79 ply) for a faster and easier win. P.S.: So where did Black go wrong? In this game, Black blew a won position. After 31. Rh6 +-, Black played 31...Qb7? which allows 32. g6! = (+0.08 @ 31 ply, Stockfish 9) to let White off the hook with a level position. Instead 31...Qa4! -+ (-18.80 @ 26 ply, Stockfish 9) with numerous decisive threats, such as 31...Qa4 32. Re1 Bxa2+ 33. Kxa2 bxa3 -+ (mate-in-ten, Stockfish 9 @ 41 ply), would have kept Black on the winning track.

Sep-25-18		perfidious: White has more than one way to close the show, but 42.Rxh7+ looks brutally direct and gets the job done.

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