| Aug-17-22 | | Brenin: The royal fork 19 ... Nf3+ forces 20 gxf3. An immediate 20 ... Qf4 allows Black to create an escape route for his K with 21 Rfe1, so first 20 ... Qg5+ 21 Kh1 (the N is pined) and now 21 ... Qf4 threatening mate on h2, avoided only by 22 Ng4 Qxd2. |
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| Aug-17-22 | | Brenin: ... or by 22 Qxd6 cxd6, with massive material loss either way. This seemed easier than yesterday's puzzle. |
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| Aug-17-22 | | jrredfield: I found this almost instantly. 19. ...♘f3+ forces a sac or White loses the Queen. This was easier for me than Monday or Tuesday. KOMODO Dragon 3.1 sees a few good possibilities showing that White was in a powerful position with Black quite helpless to defend. Depth 35:
3 Best moves:
Black +7.94 19. ... ♘f3+ 20.gxf3 ♕g5+ 21.♔h1 ♕f4 22.♕xd6 cxd6 23.♖ad1 ♕xf3+ 24.♔h2 ♕f4+ 25.♔g2 ♖e5 26.♗d5 ♖h5 27.♖fe1 ♖g5+ 28.♔f1 ♕h2 29.h4 ♖g1+ 30.♔e2 ♖xe1+ 31.♖xe1 ♕xh4 32.♖d1 b5 33.♗g2 f5 34.♗f3 ♖e8 35.♖h1 ♕d4 36.♖d1 ♕c3 37.♔f1 ♔h8 38.♖xd6 f4 Black +5.04 19. ... ♕f4 20.g3 ♘f3+ 21.♔g2 ♘xd2 22.gxf4 ♘xf1 23.♔xf1 ♗xf4 24.♘g2 ♗d6 25.♘e1 ♖d8 26.a4 ♖fe8 27.♘f3 h6 28.♖d1 c6 29.♘e1 ♗b4 30.♖xd8 ♖xd8 31.♘d3 ♗c3 32.♘c5 b6 33.♘e4 ♗b4 34.♘g3 g6 35.♘e4 ♖d1+ 36.♔g2 Black +3.39 19. ... b5 20.♖ad1 ♘f3+ 21.gxf3 bxc4 22.♘xc4 ♕g6+ 23.♔h1 ♖e6 24.♘xd6 ♕h5 25.♔g2 ♖g6+ 26.♔h2 ♖h6 27.♕xh6 gxh6 28.♖g1+ ♔h8 29.♘c4 ♕xf3 30.♖d2 ♕f4+ 31.♖g3 h5 32.♔g1 f5 33.♖d7 ♕c1+ 34.♔g2 f4 35.♖gg7 f3+ 36.♔h2 ♕f4+ 37.♔h1 ♕h6 38.♖g3 ♕e6 39.♖xc7 h4 40.♖g4 ♕e2 41.♖g1 |
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Aug-17-22
 | | perfidious: Embarras de richesse; in addition to the game continuation, Ulvestad could have played 19....Qf4 20.g3 Nf3+, which forces a different type of material gain and will also win. |
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| Aug-17-22 | | Shangri La: 19...Nf3+ is simple sacrifce for checkmate or QxQ Will my messge be restricted again? |
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Aug-17-22
 | | Breunor: I went for Qf4. |
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| Aug-17-22 | | agb2002: Black is one pawn up.
White's royal family is in the range of a royal fork and the white queen is defenseless. These details suggest 19... Nf3+ (19... Qf4 20.g3 Nf3+ 21.Kg2 Nxd2 22.gxf4 Nxf1 23.Kxf1 Bxf4 is also winning but much weaker) 20.gxf3 Qg5+ (20... Qf4 21.Rfb1 Qh2+ 22.Kf1 Qh1+ 23.Ke2 favors White) 21.Kh1 (21.Ng2(4) Qxd2 + - [q+p vs N]) 21... Qf4 22.Ng4 Qxd2 + - [q+p vs N]. |
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| Aug-17-22 | | agb2002: I missed 22.Qxd6, probably due to a residual image of the knight still on d4. Lost for White anyway but I should have seen this possibility. |
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| Aug-17-22 | | Cheapo by the Dozen: This took me way too long, because I overlooked that White's knight was pinned against the queen, and hence hallucinated that it could reasonably be interposed at g2. Indeed, the whole week has been unusually challenging to this point. |
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| Aug-17-22 | | boringplayer: <perfidious> That's the line I saw as well. |
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| Aug-17-22 | | mel gibson: So easy - it was a Monday puzzle on Wednesday. LOL |
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| Aug-17-22 | | jes47: A nice finish. But when I saw 19. ... Qf4 I knew I had a won game. The rest is just window dressing. |
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| Aug-17-22 | | mayankk06: I saw 19... Qf4 20 g3 Nf3+ Kg2 followed by Black going an exchange up. I then saw 19... Nf3+ 20 gxf3 but then had the incorrect followup as 20... Qf4. Didn't realise that White may escape via e1 after the Rook clears space. |
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| Aug-17-22 | | goodevans: 19.Qd2?? Oops! |
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Aug-17-22
 | | corneliussulla: 19.Qd3. leads to a draw |
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| Aug-17-22 | | TheaN: Significantly easier than yesterday. CG, in case you're reading suggestions on the PotD, consider the differences between today and yesterday to take into account in the difficulty curve. Yesterday, there were a lot of possible alternatives to consider for both sides in an open position. Black's tactical shot was obvious, but it wasn't immediately clear how this won with best play from both sides, <after> analyzing all possibilities. Today, there aren't that many options to begin with. White isn't attacking so we have time to think of a good way forward. <19....Nf3+> looks threatening enough and by lack of other sac alternatives (19....Rxe3? 20.Qxe3 +- just improves White's position and 19....Bh2+? makes no sense), you start to analyze that line. Then, <20.gxf3 Qg5+ 21.Kh1 Qf4 -+> follows kind of automatically. I know there's probably just one or two people selecting these puzzles, but consider the <choices> over anything to determine difficulty. And give the best computer lines a whirl to make sure they're not overly complicated for the intended day. Having said all of that, thanks for these still, as I'm still going strong since I joined here is 2009 and it probably made me win a couple of games I otherwise wouldn't have. |
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| Aug-17-22 | | thegoodanarchist: The wrong stuff. |
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| Aug-17-22 | | saturn2: A weird but good move is 19...h5. It prevents Ng4 which white has as defence resource in some lines. 19.Qd2 went into the fork. Either after 19... Nf3 20. gxf3 white only considered Qf4 or Qxf3 or he did not realize the danger at all. |
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Aug-17-22
 | | chrisowen: <Messiah>
Comfortably sacrifice :) |
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| Aug-17-22 | | Chris Bennington: This strikes me as much more of a Monday puzzle. |
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| Aug-18-22 | | Messiah: THX for censoring out my kibitz. Trademark CG. |
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Kibitzing
sac: 19...Nf3+