Julius Nielsen vs Jaroslav Hybl (1965)

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Julius Nielsen vs Jaroslav Hybl
5th Correspondence World Championship (1965) (correspondence), ICCF, Jul-01
Sicilian Defense: Richter-Rauzer. Classical Variation (B65) · 1-0

ANALYSIS [x]

FEN COPIED

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< Earlier Kibitzing · PAGE 2 OF 2 · Later Kibitzing>
Mar-25-16		Razgriz: I could either 1) Force moves by taking with the Rook, but that loses support for when the vacates the dark square blocking the queen or 2) Take with the Bishop and really open up that queenside

Mar-25-16		waustad: I started it right.

Mar-25-16		offramp: Identical to Spielmann vs Tarrasch, 1923 so I got it immediately.

Mar-25-16		Gilmoy: Surely the most scenic detour ever from <11..Qa5>: click for larger view to <51..Qc7>: click for larger view First, the Nimzowitschian <29.g5 Qh8?!>: click for larger view Watch in amazement as she somehow escapes that jail. It's fitting that the game ends with a <nigh-Smullyan bishop> not even on its home square: click for larger view 59..Re8 60.Rd7 forks Qc7 and 61.Qg7#. Simply letting the Bd8 fall isn't an answer, because White's centralized Qd4 is also sitting on the Qf6-Rh8 triangle mate pattern.

Mar-25-16		patzer2: Found 52. Bxf7! Rxf7 53. Qxg6+ Kf8 54. Qh6+ for the first three moves of this Friday puzzle. However, on the fourth move of the combination I took the easy way out with 55. Rg6+ Rg7 56. Rxg7+ Qxg7 58. Qxh5 (+3.37 @ 22 depth, Deep Fritz 15) when White's three extra pawns are worth far more than Black's extra Bishop. Much stronger is the correspondence game move 55. Re6! (+11.56 @ 22 depth, Deep Fritz 15). Another difficult move for me in this deep combination was 58. Rd6! (#79 @ 21 depth, Deep Fritz 15 ). For a Black improvement, instead of 20...Bxd5 21. exd5 (+0.40 @ 21 depth, Deep Fritz 15), the computer suggestion 20...b5!? which gambits two pawns for the win of the exchange might be worth a try. After 20... b5!? 21. Qxe5 a5 22. a4 Bd7 23. axb5 a4 24. Bxa4 Bxb5 25. b4 Qc6 26. Bb3 Bxf1 27. Rxf1 Kh8 = (0.11 @ 21 depth, Deep Fritz 15) it's an unbalanced but roughly level position.

Mar-25-16		abuzic: I thought the puzzle was 51.? 51.Bxf7 winning; it was actually played a move later 52.?

Mar-25-16		steinitzfan: A very difficult puzzle. This one I have trouble with even after walking through it.

Mar-25-16		wooden nickel: Excellent puzzle with remarkable text line solution, although I started liking 53.Rxg6+ more and more over the text move 53.Qxg6+ if 53... Kf8 then 54.Qd5 click for larger view

Mar-25-16		alphee: The first move could be a rook or a bishop move apparently. This reduced the options and if 52. ♗xf7 ♖xf7 53. ♕xg6+ ♔f8 54. ♕h6+ could be anticipated, the following moves were a total mystery. Very difficult, yes!

Mar-25-16		kevin86: Remarkable how many times the white rook and queen move one square across.

Mar-25-16		Patriot: This was a lot of fun. There were several candidates. Rxf7+, Rxg6+, and Bxf7. I considered 52.Rxg6+ fxg6 53.Bd3 Qf7 54.Qxe5+ Kh7 and saw nothing more. The beauty of 52.Rxf7+ is that the rook will have to be on f7, not the queen. 52.Rxf7+ Rxf7 53.Bd3 Kf8 54.Qxg6 but it's hard to see where this goes. Finally I considered 52.Bxf7 Rxf7 53.Qxg6+ Kf8 54.Qh6+ Kg8 55.Re5 but I did not see a win. Then I thought it would be better to try 53.Rxg6+ Kf8 54.Rh6. It looks winning but I was still unclear about this.

Mar-25-16		Once: The first few moves weren't hard to find, but the finish was beyond me. I imagined that black would struggle to defend his king, but I couldn't see a clear way to win. One odd thing happened when I booted up Fritzie. After 58...e4 he immediately called a mate in 80, then quickly revised this to a mate in 11. A mate in 80? The mind boggles.

Mar-25-16		Jimfromprovidence: 58 Rd6 is a difficult move to work through. Say black responds with 58...b5 below. click for larger view Does white respond with a king move or drop the rook down or does it make no difference because black has no good moves as <al wazir> hinted at?

Mar-25-16		agb2002: The material is identical, with opposite colored bishops. Black threatens 52... Bxf6. The pawn on f7 prevents Qxg6+. This suggests 52.Bxf7 Rxf7 (52... Bxf6 53.Qxg6+ Kh8 54.Qh6#) 53.Qxg6+ Kf8 (53... Kh8 54.Rxf7 wins) 54.Qh6+: A) 54... Ke7 55.Re6#. B) 54... Ke8 55.Re6+ Be7 (55... Re7 56.Qh8+ Kf7 57.Rf6#) 56.Qxh5+ B.1) 56... Rf7 57.g6 Rf8 (57... Rg7 58.Qh8+ Rg8 59.Qxg8#) 58.g7+ Kd8 59.gxf8=Q(R)+ Bxf8 60.Q(R)e8#. B.2) 56... Kd8 57.g6 B.2.a) 57... Qc8 58.Qxe5 + - [4P vs B] and many threats (59.Rxe7+, 59.g7, 59.c7+ Qxc7 60.Qxc7+ Kxc7 61.Rxe7+, etc.). B.2.b) 57... Bf6 58.Rxf6 Rxf6 59.Qh8+ Ke7 60.Qg7+ Kd6(8) 61.Qxf6+ + - [3P] and a won ending. B.2.c) 57... Rg8 58.Qh7 looks winning. C) 54... Kg8 55.Re6 C.1) 55... Re7 56.Qg6+ Kf8 (56... Kh8 57.Qxh5+ and Black loses another pawn without improving the position, similar to C.1.e below) 57.Qf6+ Kg8 (57... Ke8 58.Qh8+ Kf7 59.Rf6#; 57... Rf7 58.Qh8#) 58.Rd6 and Black seems to be in zugzwang C.1.a) 58... Re8 59.Qg6+ Kf8 60.Rd7 wins. C.1.b) 58... e4 59.Qd4 Re8 60.Rd7 wins. C.1.c) 58... Rf7 59.Rxd8+ wins. C.1.d) 58... Qb(c)8 59.Qg6+ and mate soon, for example 59... Kh8 60.Qh6+ Kg8 61.Rg6+ Kf7 62.Rf6+ and 63.Rf8#, or 59... Rg7 60.Qe8+ Kh7 61.Rh6#. C.1.e) 58... Kh7 59.Qg6+ Kh8 60.Qxh5+ C.1.e.i) 60... Rh7 61.Qe8+ Kg7 62.Rg6#. C.1.e.ii) 60... Kg7 61.Rg6+ and mate in two. C.1.e.iii) 60... Kg8 61.Rh6 looks winning (61... Rh7 62.Qe8+ Kg7 63.Rg6#). C.2) 55... Rg7 56.Re8+ Kf7 57.Qe6#. C.3) 55... Be7 56.Rg6+ Rg7 57.Qxg7#.

Mar-25-16		agb2002: <offramp: Identical to Spielmann vs Tarrasch, 1923 so I got it immediately> I also knew that game but I have needed more than one hour (of fun :-)

Mar-25-16		mel gibson: I didn't see it but it seems so obvious now. The bishop is sacrificed & makes the pawn in from of the King become weak allowing the Queen to take it.

Mar-25-16		offramp: <agb2002: <offramp: Identical to Spielmann vs Tarrasch, 1923 so I got it immediately> I also knew that game but I have needed more than one hour (of fun :-)> By coincidence I saw that Spielmann game YESTERDAY. If I hadn't seen it this would have taken me also more than one hour.

Mar-25-16		morfishine: Not much of a puzzle when there is only one move, no offense intended

Mar-25-16		scormus: today is Friday isnt it? or does Good Friday make a difference. Anyway, an excellent puzzle, with a labyrinthine path to navigate. And too much for me, non-check moves like 55 Re6 and 58 Rd6 are hard to find

Mar-25-16		dfcx: White already has a lot of pressure on the g6 pawn, naturally 52.Bxf7 opens the attack. A. 52...Bxf6? 53.Qxg6+ Kh8 54. Qh6# B. 52...Rxf7 53. Qxg6+ B1. 53...Kf8 54.Qh6+ Kg8 (Ke8 55.Re6+ Re7 56.Qh8+ Kf7 57.Rf6#) 55. Re6 Re7 56.Qg6+ Kf8 57.Qf6+ Kg8 58.Rd6 b5 59.c4 wins because all black pieces are tied up. B2.53...Kh8 54.Rxf7 Qxf7 (or Qh7#) 55.Qxf7 C. 53...Qxf7 54.Rxf7+ wins

Mar-25-16		transpose: I did not find the solution, but I take some comfort that this was played in correspondence, when taking on f7 could be worked out at home.

Mar-25-16		Cheapo by the Dozen: I missed Re6.

Mar-26-16		alphee: Not too different from yesterday's puzzle which helped a lot

Mar-28-16		CHESSTTCAMPS: In this opposite-colored bishop position, material is even, but white has much more active pieces and advanced pawns that create a bind. Black threatens 52.Bxf6. Let's knock out the f7 base of black's kingside pawn shield and see what falls out: 52.Bxf7! (Immediately picks up two pawns with tempo) Rxf7 (not 52... Bxf6?? 53.Qxg6+ Kh8 54.Qh6#) and now white has the interesting and seemingly pleasant choice of forcing alternatives Qxg6+ and Rxg6+. The line 53.Qxg6+ Kf8 54.Re6 Re7 55.Qf6+ Kg8 (Rf7 56.Qh8#; Ke8 56.Qh8+ Kf7 57.Rf6#) 56.Rxe7 Bxe7 (Qxe7 57.Qxe7 Bxe7 58.c7 wins) 57.Qh6+! Kg8 (Ke8/Kf7 58.Qxh5+ picks up the pawn with tempo) 58.g6! seems to do the trick, e.g. 58... Bf8 59.Qh7+ Qxh7 60.gxh7+ Kxh7 61.c7 wins. Also strong is 53.Rxg6+ Kf8 (Kh8 54.Rh6+ Rh7 55.Rxh7+ Qxh7 56.Qxe5+ Qg7 57.Qe8+ Qg8+ 58.Qxg8 Kxg8 57.Kc4-b5-a6-b7 reaches a winning position) 54.Rh6 followed by Rxh5 and the advance of the king-side pawns wins just as surely. Time for review...

Mar-28-16		CHESSTTCAMPS: Even saw 58.Rd6 (by transposition) but didn't quite put it together.

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