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Later Kibitzing> |
| Oct-31-18 | | Mayankk: The puzzle was easy enough - I mean what else can do you other than getting rid of the Bishop followed by a Queen check on d7. You do not even have to calculate till a mate since you can just harass the Black King for a while and pocket the hapless Rook at an opportune moment, knowing fully well that Black can’t do much other than a few spite checks after that. The move that puzzled me the most was 28... Qh4. No matter how bad the position was, 28 b3 did give some breathing space to Black. Moving out your Queen to a far away square when your Rook and Bishop are like sitting ducks seemed rather careless. |
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| Oct-31-18 | | agb2002: White has a knight for a bishop.
The bishop prevents Qd7+. Therefore, 33.Rxc8+:
A) 33... Rxc8 34.Qd7+ Kb6 (34... Kb8 35.Qb7#) 35.Na4+ A.1) 35... Kb5 36.Qb7+
A.1.a) 36... Kxa4 37.Qb4#.
A.1.b) 36... Ka5 37.Qb4+ Ka6 38.Qb6#.
A.1.c) 36... Kc4 37.Qxb3+ Kd4 38.Qd3#.
A.2) 35... Ka5 36.Qa7+ Kb5 37.Qb7+ transposes to A.1. A.3) 35... Ka6 36.Qxc8+
A.3.a) 36... Ka5 37.Qa8+ Kb5 38.Qb7+ as in A.1.
A.3.b) 36... Ka7 37.Qc7+ Ka8 (37... Ka6 38.Qb6#) 38.Nb6#. A.3.c) 36... Kb5 37.Qb7+ as in A.1.
B) 33... Kxc8 34.Qd7+ Kb8 35.Qb7#.
C) 33... Kb6 34.Qb4+ Ka7 35.Qb7#. |
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| Oct-31-18 | | patzer2: Instead of 14...0-0-0?, allowing 15. Bxc6 bxc6 16. g5 ± (+0.65 @ 22 ply, Stockfish 9), Black could have held it level with 14...Bd7 = (+0.08 @ 19 ply, Stockfish 9). |
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| Oct-31-18 | | Walter Glattke: 35.-Ka6!? 36.Qxc8+!? Kb5 37.Qb7+ Kc4 (Kxa4 Qb4#) 38.Qxb3+ Kd4 39.Qd3# 36.-Ka7 37.Qc7+ Ka8 39.Nb6# (Ka6 Qb6#)36.-Ka5 37.Qa7+ Kb5 38.Qb7+ Kxa4 39.Qb4# or 38.-Kc4 39.Qxb3+ Kd4 40.Qd3# |
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Oct-31-18
 | | FSR: 33.Rxc8+ Rxc8 (33...Kxc8? 34.Qd7+ Kb8 35.Qb7#) 34.Qd7+ Kb6 35.Na4+! and Black is toast, for example 35...Kb5 (35...Ka6 36.Qxc8+ doesn't help) 36.Qb7+ Ka5 (36...Kc4 37.Qxb3+ Kd4 38.Qd3#) 37.Qb6+ Kxa4 38.Qb4#. |
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| Oct-31-18 | | patzer2: According to our Stockfish 9 program's analysis of move 33...?, 33. Rxc8+! forces mate-in seven. |
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| Oct-31-18 | | saturn2: <Hesam 7 why people still allow the Keres attack> Kasparov played it against Karpov. Questionable was the decision to castle 0-0 into a g file to be opened after h6 had been played. As pointed out an early Bd7 preparing 0-0-0 seems a better strategy. |
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| Oct-31-18 | | stacase: 33.Rxc8+
34 check ...
35 check ...
36 check ...
and so on until
??? checkmate
happens or not. Well anyway, I didn't see it happening. |
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| Oct-31-18 | | mel gibson: Mate in 8 is not that easy to see. |
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| Oct-31-18 | | zb2cr: Pretty amazing that White's Pawn turns out to be in just the right position to support a mate. After 33. Rxc8+, Rxc8; 34. Qd7+, Kb6; 35. Na4+ is the key move. <agb2002> has listed all the mating sequences. |
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| Oct-31-18 | | malt: 33.R:c8+ R:c8
(33...K:c8 34.Qd7+ Kb8 35.Qb7# )
34.Qd7+ Kb6 35.Na4+ Ka6
(35...Kb5 36.Qd3+ K:a4 37.Q:b3# )
36.Q:c8+ Kb5 37.Qb7+ Kc4 38.Q:b3+ Kd4 39.Qd3# |
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| Oct-31-18 | | TheaN: Wednesday 31 October 2018
<33.?>
White takes out the defender of d7 and forces mate with <33.Rxc8+>. Lets split these. I'd say C1 is the principle variation here (as Black almost escapes), but C2 is the longest mate. A) 33....Kxc8 34.Qd7+ Kb8 35.Qb7#
B) 33....Kb6 34.Qb4+ Ka7 35.Qb7#
C) 33....Rxc8 34.Qd7+ Kb6 (Kb8 35.Qb7#) 35.Na4+
C1) 35....Kb5 (Ka5 36.Qa7+ Kb5 transposes) 36.Qb7+ Kc4 (Kxa4 37.Qb4#; Ka5 37.Qb6+ Kxa4 38.Qb4#) 37.Qxb3+ Kd4 38.Qd3# C2) 35....Ka6 36.Qxc8+ Ka5 (Ka7 37.Qc7+ Ka8 (Ka6 38.Qb5#) 38.Nb6#; Kb5 37.Qb7+ transposes) 37.Qa8+ Kb5 38.Qb7+ Kc4 (Kxa4 39.Qb4#; Ka5 39.Qb6+ Kxa4 40.Qb4#) 39.Qxb3+ Kd4 40.Qd3# |
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| Oct-31-18 | | TheaN: 
click for larger view
Chess can be beautiful |
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| Oct-31-18 | | scholes: I saw till last move of longest mating line. Only to miss mate in 1, 38 qd3. Position in thean post above is hard to visualise as mate. |
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| Oct-31-18 | | drollere: i went with 33. Ne6+, since (i thought) capturing the N with B loses the R, capturing with the pawn leads to Rg7+ and mate, and retreating the K leads to Qb4+ and a squirmy business that still looks winning. |
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| Oct-31-18 | | patzer2: In the opening, Black might have better chances with 10...Qxd5 as in the drawn game Naiditsch vs J Stocek, 2017. According to our Opening Explorer, 10...Qxd5 = to ⩲ (+0.24 @ 24 ply) is the slightly more popular move and the computer pick. |
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Oct-31-18
 | | Jimfromprovidence: I'm with <drollere> on this one. Actually, 33 Ne6+ Bxe6 makes for a good side puzzle. 
click for larger view White to play and win. |
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| Nov-01-18 | | eblunt: I solved todays puzzle as well :) |
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| Nov-01-18 | | et1: Holloween Holiday in chessgames ! |
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Nov-01-18
 | | scormus: Yesterday's undead puzzle ..... |
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| Nov-01-18 | | TheaN: <Oct-31-18 TheaN: Wednesday 31 October 2018 <33.?>> I agree. Waitwat? ^^. I'll count it as 4/4. 3/3+? I dunno. |
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| Nov-01-18 | | StevieB: Is this the same game as yesterday or is my computer not updating? |
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| Nov-01-18 | | patzer2: It's still mate-in-seven or less after 33. Rxc8+! Rxc8 (33...Kxc8 34. Qd7+ Kb8 35. Qb7#) 34. Qd7+ Kb6 35. Na4+! Ka5 (35...Kb5 36. Qb7+ Kc4 37. Qxb3+ Kd4 38. Qd3#; 35...Ka6 36. Qxc8+ Ka7 37. Qc7+ Ka6 38. Qb6#) 36. Qa7+ Kb5 37. Qb6+ Kc4 (37...Kxa4 38. Qb4#) 38. Qxb3+ Kd4 39. Qd3#. P.S.: If chessgames.com had to run a puzzle two days in a row, this is a good one. I'll be using it to teach my young Grandsons, who are elementary and middle school scholastic players, how to improve their visualization skills by learning to see this mate seven moves ahead. I'll start by setting up mate-in-one and mate-in-two problems from this analysis, and then work backwards (i.e. to 3, 4, 5 and six move mates) until they can see the entire seven move combination. |
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| Nov-01-18 | | patzer2: Black might have some potential to bite back in the Kere's attack with the popular move 10...Qxd4, as in Berg's impressive win in E Blomqvist vs E Berg, 2017. |
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| Nov-01-18 | | N0B0DY: reads your linguistic garbage. |
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Kibitzing
sac: 33.Rxc8+