| Feb-15-17 | | Moszkowski012273: Wednesday material? |
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Feb-15-17
 | | Phony Benoni: The eye is immediately drawn to the queen skewer on the 7th rank. Just for fun, let's look at 49.Qh7+. Black has four responses, so let's get systematic here. 1)49....Kd6. Well, that's easy: 50.Rxe6+ and the Black queen's protection vanishes. 2) 49...Kd8. Now we'got a double attack with check by 50.Qg8+and either king move allows 51.Qxe6+ grabbing the rook next move. 3) 49...Ke8. Now it's 50.Rxe6+Kd8 51.Re8+, and the queen goes again. 4) 49..Kf8. Hmm. Can't check with the rook, and 50>Qg8+ is not available. Hmm. Was this a waste of time? Not really Substitute <49.Qg7+> eliminating that pesky defense, and all is well. |
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| Feb-15-17 | | Cheapo by the Dozen: I did it the other way around. First I noticed the pin; then I saw that the queen skewer limited Black's feasible responses. |
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| Feb-15-17 | | Moszkowski012273: I think 43 White to play would of been a wee bit better. |
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| Feb-15-17 | | Big Pawn: 19. Nf5 was such a nice way to play it. No weaking f3 move, no Bd3. He found a tactical solution. if 19...Nxe4 then
20. Bxf6 Nxf6
21. Ne7+ Kh8
22. Nxc8
If 19...Bxe4 then
20. Bxf6 Bxf5
21. Be7 Re8
22. Bxe8.
If black tries to pin the bishop with
22...Re8 then
23. Bd6! |
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| Feb-15-17 | | stst: W R is pinning the N, so 49.Qg7+ only allows three squares for the Black K to breathe:
(A)....... Kd8
50.Qxf6+ Kc8
51.Qxe6+ Kb8
52.QxR and W is up material
(B).........Ke8
50.RxN Kd8
51.Qf8+ Kd7
52.Re7 pins K,Q and W exchanges up.
(C).............Kd6
50.RxN+ KxR
51.QxQ W up in material
Any other variations ,if exist, should still favors W. |
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| Feb-15-17 | | saturn2: Black's threat is Rd1+
Qg7+ If the king walks to d6 RxN+ wins the queen. If the king goes to the back rank Qg8+ is a double attack on the rook. |
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Feb-15-17
 | | agb2002: White has a pawn for a knight.
Black threatens Rd1+ and mate next.
White can resume the attack with 49.Qg7+:
A) 49... Kd6 50.Rxe6+ Kxe6 51.Qxc7 + - [Q+P vs R]. B) 49... Kd8 50.Qg8+
B.1) 50... Kd7 51.Qxe6+ Kd8 52.Qe8#.
B.2) 50... Ke7 51.Rxe6+ Kd7 52.Qe8#.
B.3) 50... Nf8 51.Qxf8+ Kd7 52.Re7+ and 53.Rxc7 + - [Q+P vs R]. C) 49... Ke8 50.Rxe6+ Kd8 51.Qf8+ Kd7 52.Qe8#. |
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| Feb-15-17 | | Moszkowski012273: Actually 44....Kg8 instead of 44...Kg7 and black is doing just fine. |
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| Feb-15-17 | | stacase: 49.Qg7+ Was there anything else to consider? |
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| Feb-15-17 | | Olsonist: The pin and the skewer kinda stood out. |
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| Feb-15-17 | | AlicesKnight: Another Black mating threat, so which check?
49.Qg7+ looks best. If ....Ke8 then 50.Rxe6+ will at least win Q for R. If ... Kd8 then 50.Qg8+ Kd7; 51.Qxe6+ Kd8; 52.Qe8# If 49 ... Kd6 then 50.Rxe6+ forces the K away from the Black Q allowing its capture. Let's see - OK, Black gave up at once. |
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| Feb-15-17 | | The Kings Domain: Nice puzzle and good game. White's dominance in the center foretold an eventual win. |
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| Feb-15-17 | | morfishine: <49.Qg7+> and White will regain the piece while snatching pawns winning ***** |
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| Feb-15-17 | | NightKnight: Qg7+ followed by Qg8+ looks pretty good. |
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| Feb-15-17 | | YetAnotherAmateur: First off, white must check or defend against 49. ... Rd1+ 50. Re1 Rxe1# That narrows our options considerably. 49. Qg7+ seems to be the right starting move, leaving black with few options. <agb2002> helpfully wrote out all the lines I had worked out, so I won't repeat him/her. |
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| Feb-15-17 | | patzer2: Found 49. Qg7+! for my Wednesday puzzle solution because I couldn't make 49. Qh7+ work. Indeed, 49. Qh7+?, which is the second best move, actually loses after 49. Qh7+ Kf8 50. Qxc7 Nxc7  (-2.70 @ 21 depth, Deep Fritz 15.) P.S.: For a Black improvement, instead of 44...Kg7? allowing 45. Rd4!  (+4.22 @ 20 depth, Deep Fritz 15), 44... Kg8 gives Black a winning game after 44...Kg8 45. d6 Rxd6 46. Qg6+ Kf8 47. Qh6+ Ke8 48. Qg6+ Kd7 49. Rxd6+ Qxd6 50. h5 Ne6 51. h6 Nf8 52. Qg4+ Kd8 53. Qg7 Qe7 54. a4 Ke8 55. Kg1 a6 56. Kf1 b5 (-1.99 @ 20 depth, Deep Fritz 15.) |
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Feb-15-17
 | | Jimfromprovidence: There is an interesting branch of the
49.Qg7+ Kd8 50.Qg8+ Nf8 line, below.
click for larger viewWhite also has 51 Qxd5+, seeing 51...Qd7 52 Qa8+ Qc8 53 Rd4+ Nd7 54 Rxd7+ Qxc8+ Kxc8. 
click for larger view |
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| Feb-15-17 | | whiteshark: <NightKnight: Qg7+ followed by Qg8+ looks pretty good.> My solution, too! ;) |
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| Feb-15-17 | | YouRang: Wednesday 49.?
click for larger view
Black is up a N for a P, but black's N is pinned, and the Q and R are loose, as in "loose pieces drop off". Moreover, black's K is highly exposed to white's Q. The correct move is the most obvious one: <49.Qg7+>
click for larger view
The skewer demands either 49...Kd8 or 49...Kd6 in order to save the queen. However... - <49...Kd8> allows the Q+N fork: <50.Qg8+ Nf8> (not 50...Kd7? 51.Qxe6+ ~#) <51.Qxd5+> winning the R, with more to come:
click for larger view
Then 51...Qd7 (51...Nd7 52.Qg8+ ; 51...Kc8 52.Re8+ ) 52.Qa8+ Qc7 53.Re8+ . ~~~
- <49...Kd7> allows the removal-of-defenders: <50.Rxe6+>
click for larger view
Then 50...Kxe6 51.Qxc7 |
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Kibitzing
sac: 43.Nxh5