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Ulf Andersson vs Zdenko Kozul
Bosna GM Tournament (1985), Sarajevo YUG, rd 4, Mar-??
English Opening: Anglo-Indian Defense. King's Indian Formation (A15)  ·  1-0



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find similar games 3 more Andersson/Z Kozul games
sac: 29.Rxe7+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Jul-19-22  ChessHigherCat: Hard for a Tuesday. You can intuit (if you're into it) that Great Honky Dog is winning despiite the passed pawn but you have to see 29. Rxe7+ Nxe7 30. Qxe7+ Kh8 31. Rxb7 (or 30..,.Kh6 31. Rh4+) with imminent mate in either case, since the white Q quickly runs out of checks and there's no counterplay.
Jul-19-22  ChessHigherCat: sorry 31. Rxc7 not Rxb7
Premium Chessgames Member
  al wazir: 29. Rce4 also wins.

29...d2 (29...Rb7 30. Qxc8 e5 31. Qc1) 30. Rxe7+ Nxe7 31. Rxe7+ Kh6 32. Rxh7+ Kg5 33. h4+ Kg4 34. d7+ Kf3 35. Rf7+.

Jul-19-22  jrredfield: For me this was easier than yesterday's POTD.
Jul-19-22  Cheapo by the Dozen: Second straight puzzle that's tougher than usual for the day.

Part of checking the non-forcing move 31 Rxc7 (assuming Black retreats his king to the back rank is to note that the rook precludes perpetual check attempts via b7 and c6 alike.

The other part of the checking the move, of course, is to confirm that Black's queen can't use the long diagonal to help with any kind of effective defense.

Jul-19-22  Brenin: Easy Tuesday: 29 Rxe7+ Nxe7 (29 ... Kh6 30 Rxh7+ Kg5 31 h4+ Kf5 32 Qf7+ with mate in 2, or 29 ... Kf6 30 Rf4+ similar, or 29 ... Kf8, g8 or h8 30 Qd8 mate) 30 Qxe7+ Kg8 (or Kh8) 31 Rc7 and Black can avoid immediate mate only by giving up the Q with 31 ... Qb1+ 32 Kg2 Qb7+ 33 Rxb7 Rxb7 34 Qxb7.
Jul-19-22  mel gibson: That was easy today - I saw that in 2 seconds.

Stockfish 15 says mate in 18:

29. Rxe7+

(29. Rxe7+ (♖e1xe7+ ♘c8xe7 ♕c7xe7+
♔g7-g8 ♖c4-c7 ♕b2-b1+ ♔g1-g2 ♕b1-b7+ ♖c7xb7 ♖b8xb7 ♕e7xb7 a6-a5 ♕b7-d5+ ♔g8-f8 ♕d5xd6+ ♔f8-f7 ♔g2-f3 d3-d2 ♕d6xd2 ♔f7-e7 ♕d2-d5 ♔e7-f6 ♕d5-d6+ ♔f6-f7 ♔f3-e4 h7-h6 ♔e4-e5 g6-g5 ♔e5-f5 g5-g4 ♕d6-c7+ ♔f7-g8 ♔f5-f6 a5-a4 ♕c7-g7+) +M18/58 404)

White wins _ mate in 18.

Jul-19-22  areknames: Very easy even for a Tuesday.
Jul-19-22  areknames: <29. Rce4 also wins.> Well it does, assuming White replies to 29...d2 with 30.Rf1 and there's still plenty of work to do. 29.Rxe7+ wins straightaway.

<29...d2 (29...Rb7 30. Qxc8 e5 31. Qc1) 30. Rxe7+ Nxe7 31. Rxe7+ Kh6>

In your line above, White cannot win if Black plays 31...Kf8.

Jul-19-22  agb2002: White has a rook for a knight and two pawns.

White can attack the black king starting with 29.Rxe7+:

A) 29... Nxe7+ 30.Qxe7+

A.1) 30... Kg8 31.Rc7 Qc1+ 32.Rxc1 d2 33.Rd1 wins.

A.2) 30... Kh8 31.Rc7 as above.

A.3) 30... Kh6 31.Rh4#.

B) 29... Kf6 30.Qxd6+ Kg5 (30... Kf5 31.Qf4#) 31.Qf4+ Kh5 32.Qh5#.

C) 29... Kh6 30.Rh4+ Kg5 31.f4+ Kf5 (31... Kf6 32.Qxd6+ Kf5 33.Qe6#) 32.Qd7+ Kf6 33.Qe6#.

D) 29... Kf(g,h)8 30.Qd8#.

Premium Chessgames Member
  Breunor: Rxe7 is screaming to be played! I think I worked out the variations but I would play it is a real game here.
Jul-19-22  stst: Hardly anything better than 29.Rxe7+ NxR, 30.QxN+ Kg8/h8 (else Kh6 ==> Rh4#) 31.Rc7 and mate next
Jul-19-22  AIC: 2/2 so far. Let's see the next days
<jrredfield: For me this was easier than yesterday's POTD.> Yesterday we spent time again to catch the king and overlooked the bad spot where the queen was :D
Jul-19-22  TheaN: <29.Rxe7+ Nxe7> alternatives lead to fast mates as White can utilize all major pieces. <30.Qxe7+ Kg8/Kh8 (Kh6 31.Rh4#) 31.Rc7 +-> and Black has no way to hold perpetual and will have to throw loads of material to prevent mate; in fact I can't see at first glance how. 31....Qc1+, I guess, but after 32.Rxc1 d2 33.Qe6+, White has the queen, the move, and a check.
Jul-19-22  Lambda: The idea came to me immediately, but there are quite a few defensive ideas which all need checking. It took me a while to see what was wrong with a defence of Qc1+ then Qh6.
Premium Chessgames Member
  chrisowen: I'd umm joy ate egg Rxe7 abridge log c crib ah it ha blubber cascadence Rxe7 edict;
Premium Chessgames Member
  moronovich: <chrisowen: I'd umm joy ate egg Rxe7 abridge log c crib ah it ha blubber cascadence Rxe7 edict;>

Interesting breakfast, <chrisowen > !

Premium Chessgames Member
  chrisowen: <moronovich>
No doubt :)
Premium Chessgames Member
  Messiah: <chrisowen: <moronovich> No doubt :)>

Wow are you capable of posting anything else than unintelligible gibberish? Or did the randomgenerator fail? Or do we have a coincidence?

Premium Chessgames Member
  eternaloptimist: <jrredfield: For me this was easier than yesterday's POTD.> I think that today’s puzzle is a little easier. <AIC: Yesterday we spent time again to catch the king and overlooked the bad spot where the queen was :D > Actually I didn’t overlook it. I noticed that there wasn’t a checkmate opportunity so then I looked for a way to trap the ♕ & sure enough I found 1!
Jul-19-22  whiteshark: Way Down We Go
Jul-20-22  mel gibson: <Jul-19-22
Premium Chessgames Member Messiah: <chrisowen: <moronovich> No doubt :)>

Wow are you capable of posting anything else than unintelligible gibberish? Or did the randomgenerator fail? Or do we have a coincidence?>

Just go to your profile and block him.
I have been blocking his gibberish for years.

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