| Feb-02-23 | | sudoplatov: I didn't check closely so I had 34.Rxe5+ and only ended up +6; should be good enough. |
|
| Feb-02-23 | | Honey Blend: 34. ♖xe5+ ♔f8 35. d6 also works well. |
|
| Feb-02-23 | | King.Arthur.Brazil: For the King it is enough: 33. Rxe5+ dxe5 34. d6+ Kd8 35. Bxg8 e4 36. Rf1 Qg7 37. Be6 and Black has no defence against 38. Rf7.
Black cannot reply 37... Qd4+ 38. Qxd4 cxd4 39. Rf8#. Maybe, can be a better continuation, but I go on with this. Let's check. |
|
| Feb-02-23 | | Brenin: After the obvious 33 Rxe5+ dxe5 White has a choice of forcing moves, with 34 Qg5+ looking the most promising, e.g. 34 ... Kf8 (or Kf7) 35 Qxe5, or 34 ... Ke8 35 Rxe5+. Perhaps Black's best defence is 33 ... Kd8 34 Qg5+ Kc8, but then 35 Re7 looks crushing. |
|
| Feb-02-23 | | Brenin: If 34 Rxe5+ exe5 35 d6+ then Qxd6 and Black is safe, with Qd4+ and Qxc4 threatened, e.g. 36 Qg5+ Kd7. |
|
Feb-02-23
 | | Korora: I got the first sac right, but not the follow-up. |
|
Feb-02-23
 | | al wazir: Edward Mackenzie Jackson was 62 at the time this game was played; Salomon Flohr was 21. |
|
| Feb-02-23 | | jrredfield: I saw the first four plies right away but then guessed 35 Qf6+ instead of 35 Qxe5. That would have been a disaster for White, leading to a draw instead of the decisive win with Qxe5. Black could have drawn things out a bit longer with 33 ... Kd8 instead of 33 ... dxe5, but was in such a hole after 33 Rxe5+ that the end was inevitable either way. |
|
| Feb-02-23 | | mel gibson: The first few moves were obvious.
Stockfish 15 says:
33. Rxe5+
(33. Rxe5+ (♖e3xe5+ ♔e7-d8 ♕d2-g5+ ♔d8-c8 ♖e5-e7 ♕d7-d8 a4-a5
♔c8-b8 a5-a6 ♗b7-c8 ♕g5-f6 ♗c8-d7 ♕f6xd6+ ♔b8-c8 ♕d6-e5 ♖g8-e8 ♖e7xe8
♕d8xe8 ♕e5xe8+ ♗d7xe8 ♖e1xe8+ ♔c8-c7 ♖e8xa8 ♔c7-d6 ♖a8xa7 h7-h6 b5-b6
♔d6-e5 ♖a7-c7 ♔e5-d4 ♗c4-a2 ♔d4-c3 ♖c7xc5+ ♔c3-d3 b6-b7 ♔d3-d4 ♖c5-c6)
+29.50/33 620)
score for White +29.50 depth 33. |
|
| Feb-02-23 | | Mayankk: My line was 33 Rxe5+ dxe5 34 Qg5+ Kf8 ( 34 ... Ke8 35 Rxe5+ seems worse) 35 Rf1+ Ke8 36 Qxe5+ Qe7 37 Qg3, threatening a skewer of Black Queen and King via 38 Re8 as well as capture of a Black Rook via 38 d6. I saw later that the game line was 35 Qxe5. It's a eelatively quiet move which nevertheless traps the Black King in a mating net. Not sure if 35 Rf1+ works as well as there is no immediate mate. |
|
| Feb-02-23 | | Cheapo by the Dozen: The first move was obvious (and Black obviously has a lousy position if he declines). The second move became obvious when I realized the most urgent priority was to prevent Black's king from escaping via d8. The third move wasn't as obvious, but became the clear choice when I realized it was the best at keeping Black's king hemmed in, was one of the best at opening up lines, and didn't leave any obvious way for Black to greatly strengthnn his defense. |
|
Feb-02-23
 | | Teyss: The key points of this puzzle is finding 1. the winning move 35.Qxe5; 2. why White wins afterwards. 1. Didn't get it, was trying to make 35.Rf1+ work same as <Mayankk>. Then White can only go for perpetual after 35...Kg7 36.Qf6+ Kh6 37.Qh4+ Kg7 etc. Surprising but the BK is relatively safe. If 36.Qxe5+ Kh6 37.Rf4 (threatens Rh4#) g5 38.Rf6+ Rg6 and White cannot progress. 
click for larger view
So instead of 35.Rf1+ 36.Qxe5+ I should have remembered Lesson #2 "When a move doesn't work, change the move order." 2. The threat is Rf1+ <only now, damn it>. If 35...Rg7, 36.Rf1+ and now:
(a) 36...Rf7 37.Qh8+ Ke7 38.Re1+ wins (Kd6 39.Qe5#) 
click for larger view
(b) 36...Kg8 37. d6+ Kh8 38. Rf7! (diagram) Qxf7 39.Bxf7 and 40.d7 
click for larger view
So Black can try 35...Qf7 36.Rf1 Qxf1+ 37.Kxf1 with the threat 38.d6 and 39.Qe7# 
click for larger view
If 37...Rd8 38.d6 Rd7 39.Qf6+ Ke8 40.Qe6+ Kd8 41.Qxg8#
So Black has to give up at least one R to avoid mate. |
|
Feb-02-23
 | | Dionysius1: I've been trying to learn about squares and concentrate less on pieces (there might be a new My System book there, hehe).
So I like how
1. Even in the middle of the board, if 34...Kd6, 5 out of the K's 8 potential flight squares are either occupied or controlled (I tend to miss controlled squares). Which makes it possible for 35.Qe5 to be mate. 2. After 34...Kf8 only 1 out of the 5 (because he's on the edge of the board) potential flight squares is occupied and 1 is controlled. But in one move 35.Qxe5 controls 3 out of the remaing 4. And it isn't even check. 3, After 35.Qe5 if 35...Rg7 then 36.d6 ALL Black King's potential flight squares are occupied, or controlled by White. And it isn't even check. Makes me realise how powerful 35.Qxe5 was, and 36.e6 would have been. They aren't check, but they aren't "quiet" moves at all! |
|
Feb-02-23
| | Dionysius1: So in future, when I'm looking at candidate moves for a mating pattern, I'm going to look less at the opponent's next move. And more at what difference the candidate move makes to the control or occupation of the King's potential flight squares. Looks like a lot of faff, but so was learning how pieces move and combine. It'll be a relief to pay them less attention in a way :-) |
|
Feb-02-23
 | | steinitzfan: Very deep. There's a lot going on in those few moves. Wish't I could play like that. |
|
Feb-02-23
| | Dionysius1: There is, isn't there? So do I wish I could play like that! Maybe not as complicated as I make out, but I'm trying to find a way of explaining it to myself that might just make solving easier when I get used to it. |
|
Feb-02-23
 | | chrisowen: Tambourine faser quirk law it is jeep dough c v Rxe5+ arrive over a cliff miff arrived it set icicle a hob it rub Rxe5+ fahrenheit :) |
|
| Feb-02-23 | | agb2002: White is one pawn down.
The first idea that comes to mind is 33.Rxe5+, exposing the black king and allowing Qg5+: A) 33... dxe5 34.Qg5+
A.1) 34... Kd6 35.Qxe5#.
A.2) 34... Ke8 35.Rxe5+
A.2.a) 35... Kf7 36.d6+ Kg7 (36... Kf8 37.Qf6+ Qf7 38.Qxf7#) 37.Re7+ Qxe7 38.Qxe7+ Kh6 39.Qxb7 wins decisive material. A.2.b) 35... Kf8 36.Qf6+ Qf7 37.Qd6+ Kg7 38.Re7 Rab8 39.Qe5+ Kf7 40.Rxf7+ Kxf7 41.d6+ and mate in two. A.3) 34... Kf7 35.Qxe5
A.3.a) 35... Rge8 36.d6+ Re6 (36... Kf8 37.Qh8#) 37.Bxe6+ wins. A.3.b) 35... Rae8 36.d6+ Kf8 37.Qf6+ Qf7 38.Qxf7#. A.3.c) 35... g5 36.Rf1+ Kg6 37.Qf6+ Kh5 38.g4+ Kh4 39.Qf2+ Kxh3 40.Bf1+ Kxg4 41.Be2+ Kh8 42.Qh2#. A.3.d) 35... Rg7 36.d6+ Kf8 37.Rf1+ Rf7 38.Rxf7+ Qxf7 39.Bxf7 Kxf7 40.Qc7+ and 41.Qxb7 wins decisive material. A.4) 34... Kf8 35.Qxe5
A.4.a) 35... Re8 36.Rf1+ Qf7 (36... Qf5 37.Rxf5+ gxf5 38.Qf6#) 37.Rxf7+ Kxf7 38.d6+ wins. A.4.b) 35... Rg7 37.d6 looks winning (37... Re8 38.Rf1+ Rf7 39.Qh8#). B) 33... Kd8 34.Qg5+ Kc8 35.Re7 Qd8 36.Qg4+ Kb8 37.Rxh7 looks winning. C) 33... Kf7 34.Qf4+ Kg7 35.Re7+ wins.
D) 33... Kf8 34.Qh6+ wins (34... Rg7 35.Re7; 34... Kf7 35.Rf1+; 34... Qg7 35.Rf1#). |
|
Kibitzing
Annotations by 
sac: 33.Rxe5+