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| Oct-03-16 | | dnp: does Bh4 help? Not really, black just keeps attacking the B with his K side pawns. |
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| Oct-03-16 | | raviarun: Found it difficult for a Monday puzzle. Also how about 33.Nc4 to respond to 33...Rf4+ with 34.Nb6. Black will still be 2 pawns up, but better than game position ? |
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| Oct-03-16 | | faulty: then 34... Rb4, probably |
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| Oct-03-16 | | diagonalley: neat puzzle... almost tuesday level |
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| Oct-03-16 | | agb2002: Black has an extra pawn.
White threatens Nxc2.
The pawn on f2 protects the knight. Therefore, 32... Rxf2: A) 33.Rxf2 Bxe3
A.1) 34.Kf1 Nxf2 (or 34... Bxf2 35.Ke2 e4 - + [N+2P]) 35.Ke2 Bd4 - + [N+2P]. A.2) 34.Bh4 g5
A.2.a) 35.Bxg5 Bxf2+ 36.Kf1 Bd4 - + [N+P].
A.2.b) 35.Bg3 f4 36.Kf1 (36.Kh1 Bxf2 37.Bxf2 Nxf2+ 38.Kg1 Nd3 39.Kf1 Nc5, etc.) 36... fxg3 (or 36... Bxf2 37.Bxf2 Nxf2 38.Kxf2 e4 - [2P]) 37.Rf3 gxh2 38.Rh3 Bg1 39.Rh5 Nf2 40.Rxg5+ Kf7 41.Rh5 h1=Q 42.Rxh1 Nxh1 43.Kxg1 Ng3 - + [N+2P]. B) 33.Nc4 Rc2+
B.1) 34.Bb6 Rxc4 35.Bxa7 Rxa4 - + [N+3P vs B].
B.2) 34.Nb6 Rc8 35.Rb1 Rxd8 36.Kf1 Bxb6 37.Rxb6 Nc5 38.Rc6 Rd5 - + [N+2P]. C) 33.Nd5 Rb2+ 34.Kh1 e4 - + [2P]. For example, 35.a5 e3 36.Bb6 Bxb6 37.axb6 e2 wins. D) 33.Nd1 Rd2+ 34.Kh1 Rxd1 35.Rxd1 Nf2+ 36.Kg1 Nxd1+ 37.Kf1 Nb2 - + [N+2P]. |
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| Oct-03-16 | | patzer2: Almost any reasonable move works for this Monday (32...?) puzzle, but the simple 32...Rxf2 threatening the pin tactic 33. Rxf2 Be3  (-8.26 @ 24 depth, Deep Frtiz 15) is best.Another good choice is 32...Ra2 (-3.66 @ 21 depth, Deep Fritz 15), targeting White's unprotected pawn on a4. For a White improvement, I'd look to the opening and try the more popular move 9. Qe2  (0.37 @ 23 depth, Deep Fritz 15) as in Portisch vs Zhu Chen, 1997 |
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| Oct-03-16 | | patzer2: Instead of 13. Bd3?! allowing 13...Nxd3  (-0.49 @ 19 depth, Deep Fritz 15), a better option for White is 13. Nf3 Nxc4 14. Qxc4 Qxc4 15. bxc4 = (-0.15 @ 23 depth, Deep Fritz 15). |
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| Oct-03-16 | | Skewbrow: Not much to this. 32... Rxf2 grabs a pawn. If white tries 33.Rxf2, they end up a piece down after 33...Bxe3. So white should rescue the hanging knight instead. I think 33.Nd5 gives best resistance. At that point I don't see good discovery checks for black. For example 33...Ra2+ attempting to snatch the a-pawn then fails to 34.Bb6. So black will be two pawns up (one a supported passed pawn) in a good position, which should be enough to win (though I could still easily ruin it). |
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| Oct-03-16 | | AlicesKnight: The pressure point is f2. 32...Nxf2 loses the R, but try 32...Rxf2. If 33.Rxf2 then ...Bxe3 wins back the R leaving Black up a piece (Bg5 is answered by ...f4). If 33.Re1 then ...Nxe1; 34.Kxf2 Nc2 and again a piece goes. Let's see - OK. <agb2000> seems to have all the details. |
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| Oct-03-16 | | YouRang: Easy Monday 32...?
click for larger view
Pf2 looks like the hot square, with my Ba7 bishop having the king-pinning diagonal to work with. White's Ne3 is attacking my rook, and my Ba7 is attacking the Ne3, and the Ne3 is defended only be Pf2. So the first thing to look at is putting my attacked rook to work with <32...Rxf2>, which undermines the knight's defense and opens the pinning diagonal.
click for larger view
What can black do?
- Take my rook 33.Rxf2, only to watch his rook and knight succumb to the bishop 33...Bxe3 34.Kf1 Bxf2 35.Ke2 e4 . - Save the knight with 33.Nc4, but already trailing by two pawns, it will lose another after 33...Rb2+ 34.Kh1 Rb4. A three pawn advantage (two of them passed pawns) heading into the endgame should be an easy win. |
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| Oct-03-16 | | et1: I agree with Skewbrow. 34 Bb6 is one of those incredible moves but anyway black seems lost with two pawns down. |
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| Oct-03-16 | | Cheapo by the Dozen: Black is up a pawn.
... Rxf2 snatches a second pawn.
Best defense by White is probably to save his knight and endure a discovered check, but that loses a third pawn. Yeah, ... Rxf2 is a solution.
But this took a lot more calculation than the usual Monday puzzle does to be sure of the answer. |
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| Oct-03-16 | | zb2cr: A little more complicated than the typical Monday. 32. ... Rxf2 does the trick. |
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| Oct-03-16 | | thegoodanarchist: < Cheapo by the Dozen: ... But this took a lot more calculation than the usual Monday puzzle does to be sure of the answer. Oct-03-16 zb2cr: A little more complicated than the typical Monday.> What they said. |
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Oct-03-16
 | | gawain: I agree with those who observe that this was harder than most Mondays. The winning combination is not so overwhelmingly winning as usual. And White has interesting saving moves to try, such as 33 Nd5. But these tries still leave Black comfortably ahead. |
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| Oct-03-16 | | YetAnotherAmateur: After 32. ... Rxf2, taking the rook doesn't work, thanks to the pin possibilities on the a7-g1 diagonal. However, refusing the sac at least keeps things interesting with such options as Re1, Rd1, or Bh4. |
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| Oct-03-16 | | YouRang: <et1: I agree with Skewbrow. 34 Bb6 is one of those incredible moves but anyway black seems lost with two pawns down.> White's option to play 33.Nc4 (or Nc5) followed by 34.Bb6! is the main reason for why black's best in-between move is <33...Rb2+>.
click for larger view
Now 34.Bb6 loses to 34...Bxb6 35.Nxb6 Rxb6
If white instead plays 34.Kh1, then 34...Rb4 will result in black getting a 3 pawn lead. |
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| Oct-03-16 | | kevin86: Black has too many pawns! |
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Oct-03-16
 | | benveniste: Be honest. Since this was Monday and there was no queen to sac, how many of you looked for a smothered mate? |
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| Oct-03-16 | | NBZ: <YouRang> Minor addition to your excellent (as usual) analysis - if White plays 33. Nd5 (rather than Nc4), 33. ... Rb2+ 34. Kh1 and now Rb4 is no longer possible. But agree that Black is still totally winning with two extra pawns. |
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| Oct-03-16 | | Cheapo by the Dozen: <benveniste>,
Nothing to "be honest" about. Of course I looked for a smothered mate. That said, it's hard to imagine how there could be one in the position, given the lack of a queen. I only stopped looking for a smothered mate after I realized that point. :) |
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| Oct-03-16 | | et1: YouRang - thank you and clap clap clap very good explanation ! |
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| Oct-03-16 | | RandomVisitor: <RKnight><There is one more subtlety to this simple puzzle: The salvage attempt 34. Bh4 fails to 34...g5, 35. Bg3 f4.> or 34.Bh4 Bxf2+ 35.Bxf2 Nxf2 36.Kf2 and the king and pawn ending is an easy win for black. |
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| Oct-03-16 | | JeffH1165: Got it. But a rook sac seems a little much for a Monday. |
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| Oct-03-16 | | YouRang: <NBZ><if White plays 33. Nd5 (rather than Nc4), 33. ... Rb2+ 34. Kh1 and now Rb4 is no longer possible.> Yep, I didn't clarify that too well.
My main comment was concerning 33.Ng4, but I added 33.Ng5 as an afterthought because 33...Rb2 still stops 34.Bb6. However, the followup of 34...Rb4 doesn't apply in that case, as you pointed out. Thanks. :-) |
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Kibitzing
sac: 32...Rxf2