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| Jun-06-23 | | Brenin: 20 e6, threatening 21 Rf7, is tempting (20 ... Bxe6 21 Bxg7), and in the game it induced resignation, but driving the B on c5 away from defending f8 with 20 Na4 may be even stronger, e.g. 20 ... Bb6 21 Bxg7 Qxg7 22 Qe8+ Kh7 23 Rf7. |
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| Jun-06-23 | | Brenin: Black's resignation seems premature: 20 e6 Bxe6 21 Bxg7 Bf5 22 Qxf5 (not 22 Rxf5 Qe1+ with mate) Kxg7 and Black survives, a P down and with an exposed K, but still alive. However, playing 20 Ne4 dxe4 before 21 e6 stops the threat of Qe1+, so Black's Bf5 is answered with simply Rxf5. This may be White's best line. |
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| Jun-06-23 | | Mayankk: I saw 20 e6 Bxe6 (else 21 Rf7) 21 Bxg7 Qxg7 22 Qxe6+ Kh8 ( 22 ... Kh7 23 Rf7 winning the Queen) 23 Rf6 and how Black has to still give up its Queen after the 24 Rh6+ threat. However the line didn't seem forced to me. Especially as Black was already a piece up and may have had better options on its 21st move. |
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| Jun-06-23 | | King.Arthur.Brazil: I searched for something that solve the potd but I didn't get it. So, I kept simple playing: 20. Bxg7 Qxg7 21. Qe8+ Bf8 22. e6 when the threat of 23. Rf7 is unavoidable. If Black didn't take the ♗ 21. Bh6+ Kh8 22. Rf7 and check-mate follow with 23. Qh7#. |
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Jun-06-23
 | | perfidious: This poor bugger has four games here, and twice has had the honour of buying the farm in POTDs? How lucky can a guy get?
This puzzle would have been a propos later in the week, if at all; for the solution is by no means clear. |
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| Jun-06-23 | | Steve Holloway: 20...Bxe6 and what percentage of players could win that position as white? |
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| Jun-06-23 | | jrredfield: Like yesterday, there are several moves that appear to be plausible. For White's 20th move, Ne4, Na4, b4, e6 all appear to be winners. Black's lack of King protection gives White numerous options. So not what I would expect this early on in the week. A rough week for me so far. |
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| Jun-06-23 | | Cecco: So should we conclude that of all the ways to solve a puzzle considered "easy" (20 Ne4 seems the best) chess legend Akiba Rubinstein chose the least convincing? |
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| Jun-06-23 | | mel gibson: I couldn't understand why Black resigned.
This puzzle is a Saturday or Sunday level - not Tuesday level -
it's difficult.
Stockfish 15 has a different and better solution: 20. Ne4
(20. Ne4 (Nc3-e4 d5xe4 e5-e6 Bc8xe6 Bh6xg7 Qe7xg7 Qg6xe6+ Kg8-h8
Rf1-f5 Bc5-f8 Rf5-h5+ Qg7-h7 Rh5xh7+ Kh8xh7 Qe6xe4+ Kh7-h8 Qe4-h4+ Kh8-g7
Qh4-g3+ Kg7-f6 h2-h4 Ra8-e8 h4-h5 Re8-e6 Qg3-f4+ Kf6-g7 g2-g4 b7-b5 Qf4-f5
Re6-h6 Qf5-d7+ Kg7-g8 Qd7-e8 b5-b4 g4-g5 b4-b3 a2xb3 Rh6-h7 Qe8-g6+ Kg8-h8
Qg6-f6+ Kh8-g8 h5-h6 Rh7-c7 Qf6-g6+ Kg8-h8 Qg6-e6) +8.68/37 139) score for White +8.68 depth 37.
if I force Stockfish to play the game line:
20. e6 Bxe6
(Bc8xe6 Bh6xg7 Be6-f5 Qg6xf5 Kg8xg7 g2-g3 Bc5-e3 Kh1-g2 Ra8-e8
h2-h4 Be3-h6 Qf5-g4+ Kg7-h7 Rf1-f2 Bh6-e3 Rf2-f5 Qe7-e6 Nc3-d1 Be3-h6
Nd1-f2 Bh6-g7 b2-b3 Re8-e7 Qg4-h5+ Kh7-g8 Nf2-g4 Qe6-e4+ Kg2-h3 Qe4-h1+
Ng4-h2 Qh1-e1 Qh5-g6 Qe1-e6 Qg6-g4 a7-a5 h4-h5 b7-b5 Rf5-g5 Qe6xg4+ Nh2xg4
Kg8-f7 Rg5-f5+ Kf7-e6 Rf5-f2 c6-c5 h5-h6 Bg7-d4 Rf2-e2+ Ke6-d6 Re2xe7
Kd6xe7 Kh3-h4 c5-c4 Kh4-g5 a5-a4 b3xa4) -3.35/44 134 score for Black -3.35 depth 44. |
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| Jun-06-23 | | raymondhow: Like the King, I went for 20. Bxg7 Qxg7 21. Qe8+ Bf8 22. e6 but then Black has 22...Qe7 where best play becomes a draw by repetition of moves. |
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| Jun-06-23 | | agb2002: White has two pawns for a bishop.
After 20.e6, White threatens Rf7:
A) 20... Bxe6 21.Bxg7 Qxg7 (21... Bf7 22.Qh6 wins) 22.Qxe6+ Kh8 (22... Kh7 23.Rf7) 23.Rf5 Qh7 24.Qf6+ Qg7 (24... Kg8 25.Rg5+ Qg7 26.Qxg7#) 25.Rh5+ Kg8 26.Rg5 wins decisive material. B) 20... Bd4 21.Rf7 Qxe6 22.Rxg7+ Kf8 (22... Bxg7 23.Qxg7#; 22... Kh8 23.Qh7#) 23.Rf7+ Ke8 24.Qg8#. C) 20... Qxe6 21.Qxg7#. |
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| Jun-06-23 | | agb2002: I saw 21... Bf7 but missed 21... Bf5, due to a residual image or no caffeine at that moment or both. |
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Jun-06-23
 | | scormus: Hmmm, so it's 20 e6?! 0-1?
I've seen easier Wednesdays! |
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| Jun-06-23 | | TheaN: I went with <20.Na4 +-> as the slightly odd puzzle move, but the most principled: add pieces into the attack and prevent the opponent from adding defenders. 20.e6 is pretty much the opposite and even though I missed the subtleties it felt wrong. 20.Ne4! adds some spice to e6 which I missed but it still feels wrong. |
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| Jun-06-23 | | Brenin: The choice between e6, Na4 and Ne4, together with their hidden subtleties, makes this POTD a good challenge (which both players seem to have failed), but rather tough for a Tuesday. |
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| Jun-06-23 | | saturn2: 20.Nb4 is clever. the first idea is 20.Bxg7 Qxg7 21.Qe8 folliwed by Rf7 and win the Qg7. But black has 21....Bf8. So 20.Na4 Bb6 excludes this. |
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Jun-06-23
 | | takchess: We tend to think the problems are way too easy or too hard for the day. This week has been two hard problems for a Monday and Tuesday. interested to see what the rest of the week brings . |
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Jun-06-23
 | | chrisowen: I bum really hooked it's a quiff e6 feel Ne4 ghoul it's hoof it's adept net bait o u jib e6 it's aka it's Ne4 buck |
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Jun-06-23
 | | chancho: Blast from the past circa 2006:
<chrisowen: top boards gettin a rest today? chrisowen: server noticeably quicker today :) > Easier to understand too... |
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Jun-06-23
 | | moronovich: What <chris owen writes, makes much more sense, than the little <dicer> on Rogoff. |
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| Jun-06-23 | | Hercdon: A rather confusing puzzle. White didn�t solve it either |
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Jun-06-23
 | | dorsnikov: That WAS NOT EASY! I spent 20 minutes on it and couldn't solve it. |
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| Jun-06-23 | | StevieB: I thought Tuesday was relatively easy. This "solution" comes up way short. |
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Jun-06-23
 | | takebackok: Love these "easy" ones, after 20 min think I'm still looking & thinking. |
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Jun-06-23
 | | OhioChessFan: Ummm, has anyone who thinks they're a decent player missed both Monday and Tuesday puzzles? Asking for a friend. |
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Kibitzing
sac: 15.Bxg6