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| Apr-17-17 | | Strelets: <ChessHigherCat> No argument from me on that. |
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| Apr-17-17 | | ChessHigherCat: I guess if 26. f4, then Rxc2 27. Qc2 Nf3+ at least wins back the exchange immediately |
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| Apr-17-17 | | ChessHigherCat: The mysterious 27. Ra3 must have been to prevent Rd8d3 28. Bxd3 Rxd3 29. Qc1/c2 nxf3+ followed by Bxe4. |
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| Apr-17-17 | | stacase: <ChessHigherCat: It's always better to sacrifice the opponent's queen :-)> First chuckle of the day. |
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| Apr-17-17 | | Walter Glattke: # with 36.Qd1/36.Ra1/36.Rf3/36.Re3/36.Kf2 |
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Apr-17-17
 | | FSR: 35...Rd1! toasts White's bagel. |
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| Apr-17-17 | | AlicesKnight: 35.... Rd1 wins Q for R either by R pin or Q skewer from h1. |
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| Apr-17-17 | | agb2002: Recycled. |
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| Apr-17-17 | | Once: One amusing continuation could be:
35. Rd1 36. Ra1
click for larger viewWhite's plan is to give up the chunky exchange (rook for queen) to stave off the mate. This doesn't work, of course, because black can play 36...Qg2#. But let's play with a sense of humour and throw in 36...Qh1+ instead ... 
click for larger viewNow isn't that pretty? All the heavy pieces have descended to the first rank. As if by magic. Now to make all the white pieces disappear. 37. Kf2 Qxf1+ 38. Ke3 Rxa1
click for larger viewYes, yes, black could have mated in one with 38...Rd3, Qf3 or Qe1. But sometimes we like to play with our food. |
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| Apr-17-17 | | whiteshark: What an <Easter egg>! |
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| Apr-17-17 | | thegoodanarchist: This combination appears in at least one tactics book. I think it might be Encyclopedia of Chess Middlegames, a.k.a. The Black Book |
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| Apr-17-17 | | morfishine: <35...Rd1> and thats that |
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| Apr-17-17 | | Toniera: Why never endgames as puzzle of the day? |
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| Apr-17-17 | | morfishine: <Toniera: Why never endgames as puzzle of the day?> There are, just not many
***** |
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| Apr-17-17 | | schachfuchs: Yes, we've got that already only recently, on the Spassky week end of January. |
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| Apr-17-17 | | Abdel Irada: ∞
I thought this puzzle looked familiar, and I was right, so for the solution, I will post the same solution I did on 31 January. <In endings with bishops of opposite colors and heavy pieces on, it's been said that the player with the initiative is effectively a piece ahead (owing to the defender's inability to contest attacking diagonals with his bishop).In this case, Black's initiative costs White a queen for a rook by means of a simple pin: <<+> 35. ...Rd1! > White's best defense appears to be 36. Kf2 (which at least gets him out of immediate mate), but his position is hopeless. (Of course, taking the rook with 36. Qxd1? fails to 36. ...Qg2#, as do such other "defenses" as 36. Re3?)> ∞ |
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| Apr-17-17 | | Abdel Irada: ∞
<Once>: In your line with 36. Ra1, White has not defended against the immediate 36. ...Qg2#. ∞ |
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| Apr-17-17 | | dufferps: I missed the Rd1 deflection/pin of white's Queen. I was fixed on Qh8+? -- white King escapes to f2, then to e1. |
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Apr-17-17
 | | Fusilli: <agb2002: Recycled.> You are right. Scrolling down shows that it was also the POTD in January. No doubt an accident by <CG>. There is no scarcity of Monday puzzles waiting to happen in the database! |
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| Apr-17-17 | | stst: The usual Monday Q-sac has to yield to some other marvel, due to the name Spassky.
....Rd1 will make White cry-laugh at the same time!! as the Q will be gone however White respond.
The troubling .....Qh1+ sounds good, but after Kf2, Black would waste more effort to embrace the W monarch. |
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Apr-17-17
 | | AylerKupp: <Once> I think that an even funnier continuation after 35...Rd1 36.Ra1 would be 36...Rxa1. This changes nothing, the White's queen is still pinned and it must still protect against ...Qg2#. So White's "logical" response would be 37.Bc1. Black will respond 37...Rxc1 and once again we have the same situation, except that White is now down 2 pieces. This is the continuation that we might see if White was an old chess engine subject to what I call the original horizon effect. The chess engine, when it saw an unavoidable upcoming loss during its search, would begin sacrificing pieces to put that loss beyond its search "horizon". |
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| Apr-17-17 | | drollere: make every monday a MORPHY monday. plenty of great one move finishes in that database. |
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| Apr-17-17 | | Boomie: This is a fine example of an overworked piece. The queen can defend either g2 or the first rank, but not both. Clearly the rook on a3 is tragically misplaced. It is needed to defend the first rank. |
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| Apr-18-17 | | agb2002: <Fusilli: ...
No doubt an accident by <CG>.> I imagine CG has an internal database with dates (POTD, GOTD, etc.) associated to any game. <There is no scarcity of Monday puzzles waiting to happen in the database!> The position before the last one or two moves should suffice in many cases. |
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| Apr-19-17 | | agb2002: <blunderclap: <agb2002> A glittering celebration of the wonders of artificial intelligence,> I actually can imagine a number of applications of neural networks (for example) to sites like CG. <or as I personally like to call it, automated mindlessnessworknessness.> LOL |
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