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< Earlier Kibitzing · PAGE 2 OF 2 ·
Later Kibitzing > |
| Sep-18-04 |
| misguidedaggression: I missed it: 22...Nb3+ 23.cb3 Qe3+ 24.Bd2 (24.Rd2 Re1+ 25.Kc2 Bb1#) Bxb2+ 25.Kxb2 (Kc2 Qc3#) Qxb3+ 26.Kc1 not realizing that 26...Qb1+ fails to 27.Bxb1. However, after closer analysis i found: 26...Qa3+ 27.Kc2 Bb3+ 28.Kd3 (28.Kb1 Qa2+ 29.Kc1 Qa1+ 30.Bb1 Qa3#) Bxd1+ 29.Kd4 (29.Kc4 Qb3+ 30.Kd4 c5#) Rxd2 30.Kc4 Qc5# (or 30.Bd3 Qxd3# or 30.Ke4 Bc2#) So it looks like I got it after all. (It just took me a lot of extra work!) |
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Sep-18-04
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| Gypsy: <...i'll try to continue the new line from 28 ... Bb3+ 29 Kc3 or 29 Kd3> Try 29...Bxd1+ and a mate should appear shortly. |
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| Sep-18-04 |
| misguidedaggression: It looks like you guys all saw the same line I did, The only difference is that I checked with the knight first. I think my analysis is correct, so check it out. |
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Sep-18-04
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| crafty: 23... b3+ 24. cxb3  xd2+ 25.  xd2 f1+ 26.  c2  b1# (eval -Mat03; depth 8 ply; 1M nodes) |
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| Sep-18-04 |
| urtley: <amdocs> I dont see 27Qc3+ being playable anywhere except for the line <23 ... Nb3+ 24 Pxb3 Bxb2+ (if 25 Kc2 Qxb3++)> where black can ALSO mate with Qc3++ as <Shadout Mapes> pointed out Going on with 29. Kc3 Bxd1+ (must be played to force the king onto the fourth rank) 30 Kc4 Qb3+ 31 Kd4 Pc5++ or if 30 Kd4 Rxd2 and either 31 Bd3 Qxd3++, 31 Kc4 Qb3++, or 31 Ke4 Qd3++ So 29 Kc3 does not work for white if 29 Kd3 followed by 29 ... Bxd1+ forces white to again move his king to c4 or d4, which both already fall to mate. It looks like 23 ... Nb3+ also works for black |
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| Sep-18-04 |
| khammer: although not a strict forcing line, the initial Rf1 seems to work |
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Sep-18-04
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| Gypsy: < khammer: although not a strict forcing line, the initial Rf1 seems to work > Its not quite clear what you mean: after <22...Rf1> the intermezo <23.Bh7+! Qxh7 24.Qxh7+ Kxh7 25.Rxf1> wins for White. |
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| Sep-18-04 |
| Zaius: Here are all the variations that Fritz's Mate Search function found: 22... Qe3+ (22... Nb3+ 23. cxb3 Qe3+ 24. Bd2 Qxd2+ 25. Rxd2 Rf1+ 26. Kc2 (26.
Rd1 Bxb2#) 26... Bb1#) 23. Bd2 Nb3+ (23... Qxd2+ 24. Rxd2 Rf1+ 25. Rd1 Nb3+ 26.
cxb3 Bxb2#) 24. cxb3 Qxd2+ 25. Rxd2 Rf1+ 26. Kc2 (26. Rd1 Bxb2#) 26... Bb1# |
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Sep-18-04
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| Benzol: Why are people commenting on this game and then deleting their posts? |
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Sep-18-04
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| tpstar: I believe 22 ... Rxc2+!? is an interesting sideline but much less clear due to 23. Bxc2 Qe3+ 24. Rd2 and now if 24 ... Rf1+ 25. Bd1 Nb3+ 26. Kc2 and Black could grab the perpetual with 26 ... Na1+ 27. Kc1 Nb3+ or keep trying for a win with 26 ... Qe4+ 27. Rd3 Rf2+. Less good is 24 ... Qe1+ 25. Rd1 Qe3+ 26. Bd2 because if 26 ... Nb3+ White has 27. Bxb3+ and the check forces Black to recapture on b3 instead of checking on b2 (27 ... Qxb3 28. Qg6+ Bg7 29. Qc2). The game continuation was the clearest win. <chessgames.com> Fantastic puzzle! |
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Sep-18-04
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| tpstar: <clocked> I am very sorry, I was responding to posts which have since been deleted. Yes, 24. Bd2 is much stronger than 24. Rd2 and Black has no follow-up. Thank you. |
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Sep-18-04
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| kevin86: I think I'll fold this week;the checkmate here is very complex,artistic,and effective. |
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Sep-18-04
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| Knight13: Nice puzzle with checkmate. |
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| Sep-18-04 |
| rclb: I found the 23...Nb3+ line, but a much longer mate than crafty's. |
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| Sep-18-04 |
| chessfected: 22...Qe3+ 23. Bd2 Nb3+ 24. cb Bxb2+ 25. Kxb2 Rxd2+ 26. Rxd2 (26.Ka1 Qc3mate) Qb3+ 27. Kc1 Rf1+ and mate next |
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Sep-18-04
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| radu stancu: I haven't checked this all the way, and I don't have a chessboard in front of me right now, so can anyone tell me if I overlooked something ? Thanks. 22... Rxc2+
23 Bxc2 Qe3+
first line:
24 Rd2 Rf1+
25 Bd1
and now, instead of tpstar's Nb3+:
25... Rxd1+
26 Kxd1 Bb3+
27 Kc1 Qe1+
28 Rd1 Qxd1#
or:
27 Rc2 Bxc2#
second line:
24 Bd2 Nb3+
25 Bxb3 Bxb2+
26 Kxb2 Qxb3+
27 Kc1 Qb1#
or:
26 Kc2 Qxb3#
Notice that in this second line the first move 22... Rxb2+ is absolutely necessary, otherwise after all the sacrifices the b1 square would still be under guard by white's light square bishop and black couldn't deliver the mate. |
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| Sep-18-04 |
| John Doe: I actually first noticed the possible mate with the bishop after the knight sac, but it was impeded at first. After that I examined the queen check and realized that if the rook blocked it would be mate. So Bd2 could only lead to the possible QxB, if black doesn't give check he is mated himself.
Now the original mate I envisioned was possible: by unblocking the rooks path with Rf1 the black bishop (unhindered by the clearance sac of the knight) could deliver mate at b2. I'm pretty proud of getting this puzzle. |
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| Sep-18-04 |
| John Doe: But at Rf1 the king has the b2 scape square.
How about:
22... Nb3+
23. cb3 Qe3+
[24. Rd2 Rf1+
25. Kc2 Bb2#]
24. Bd2 Bb2+
[25. Kc2 Qc3#]
25. Kb2 Rd2+
[26. Ka3 Qb3#]
26. Rd2 Qb3+
27. Kc1 Rf1+
28. Rd1 Rd1#
I analyzed this without a board so I may have missed something. |
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| Sep-18-04 |
| John Doe: umm... I guess I answered no one :-p
<radu> all seems fine to me except for 27. Kc1 what if white plays Ka1? Then the rook protects b1.
After
27... Qd1+
28. Ka2 Qd2+
29. Ka3 Qd3+
30. Ka4 Rf4+ [if Ka3, then mate the standard two rank mate follows] 31. Ka5 Qd5# |
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| Sep-18-04 |
| Seraph88: Great game!
I couldn't think this one through.
I missed the forced knight sacrifice. |
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Sep-19-04
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| Gypsy: <radu stancu> There is a subtle problem with what you call "second line". After <22...Rxc2+ 23.Bxc2 Qe3+ 24.Bd2 Nb3+
25.Bxb3+> the Black king is in check(!), so the given continuation <25...Bxb2+> is not a legal move. |
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Sep-19-04
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| radu stancu: <Gypsy> You're right, I haven't seen that, hehe... <John Doe> You were talking about my second line, right ? Well, too bad, 'cause <Gypsy> spotted a check by white's light square bishop in that one... That reminds me of a book about "missed beauty prizes" in chess; the reasoning which led to the miss, in one game, was: "I capture, he capture, I give check, he gives check, I have to move"... Needless to say, the "he gives check" move did not block the first check, and thus it was illegal... Oh well, it happened to better people chessplayers than me :) |
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| Feb-23-05 |
| aw1988: Very nice. |
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| May-25-09 |
| Trigonometrist: Very nice indeed... |
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| May-25-09 |
| Hugh the Drover: Old Rich Duras Earning His Pension. |
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Later Kibitzing > |
