< Earlier Kibitzing · PAGE 3 OF 3 ·
|Aug-17-07|| ||bogo78: <euripides: What happens after 23...Qd4 ?> I believe 24 Bxg5. Now the back rank mate no longer works since the ♗ on g5 can be interposed on c1 after the ♖ exchange on d1. So now white is ahead in material and probably winning.|
|Aug-17-07|| ||zb2cr: I saw the 22. ... Qxc3 move and that acceptance led to forced mate. I then had to spend 2 minutes or so trying to figure out what White's best response and Black's continuation were. |
I did not do anything near as comprehensive as <ConstantImprovement> did; I just figured that 23. ... Qf3 offering the Queen to sucker the Rook off the vulnerable back rank was about the best I could do. The thread of my board vision was so badly stretched that I had little confidence in my analysis.
I think maybe 1/2 credit for me.
|Aug-17-07|| ||kman: um, i'm not sure if ..Rd1 works.
B:g5 then what?
better instead of ...Rd1 might be R:d8
|Aug-17-07|| ||Eurotrash: I got this one completetly! I'm not sure why I found it quite easy, I couldnt do yesterdays.|
|Aug-17-07|| ||YouRang: Rats. The more I look at this, the more I think I should have gotten it.|
I looked at 22...Qxc3. I even suspected that it HAD to be the answer because it carried the seeds of a back rank threats against white, and that seemed to be all that black had going for her.
Alas, I didn't see it through. I should have at calculated the mating line after 23. bxc3 (25...Bc1!). Of course, bxc3 wasn't forced, but the fact that it couldn't be played made ...Qxc3 worthwhile.
Great moves: 22...Qxc3!! and 23...Qf3!!
|Aug-17-07|| ||Waitaka: <Great moves: 22...Qxc3!! and 23...Qf3!!> |
I got both!!! I hardly post this kind of comment, but it is the first time (as I remeber) to solv the friday puzzle! I AM VERY HAPPY! :D
|Aug-17-07|| ||kevin86: A brilliant double queen sac!! I saw the first one-up to the mate,but missed the second. In both cases,of course,last rank mate was the theme. I think the "record" was six in the famous-if contrived game-. I believe it was Adams-Torre.|
|Aug-17-07|| ||realbrob: Well, after I looked at the puzzle for a couple of minutes I realised that after 22..Qxc3 White couldn't play 23.bxc3 because of 23..Rd1+ 24.Rxd1 Rxd1+ 25.Kb2 Bc1+ 26.Kb1 Ba3# "A farewell to the white king", and I was pretty sure 22..Qxc3 was the move we were looking for. |
I have to admit I didn't check all the lines in which White doesn't play 23.bxc3, so maybe I didn't completely solve the puzzle...
|Aug-17-07|| ||playground player: Qxc3 jumped right out at me, but I took time to try to find a better move. There really didn't seem to be one. The tricky part about today's puzzle is White's 23rd move, which is not forced. The actual move, Bxd8, turned out to be a lot better than the move I saw, bxc3--better, but not good enough.|
|Aug-17-07|| ||whiteshark: I saw the first one-up to the mate, but missed the second as <kevin86>|
|Aug-17-07|| ||ezumpf: Please help. In the continuation of the accepted queen sacrifice, why can't the king escape to c3 instead of b1? Thanks. I'm sure I'm missing something obvious.|
|Aug-17-07|| ||fm avari viraf: The whole puzzle revolves around the "Bank Rank Theme" hence, it's easy to detect 22...Qxc3! removing the first defender, White cannot grab the Queen as mate would follow, therefore, 23.Bxd8 winning back the exchange but still the Back Rank is vulnerable so 23...Qf3! 24.Bc7+ [ not 24.Qf7? as White would be mated with 24...Qd1+ 25.Rxd1 & Rxd1# ] 24...Kxc7 |
|Aug-17-07|| ||linux fan: The b2 pawn is there (after the capture).|
|Aug-17-07|| ||skemup: I got it, partly:) Before comb. black has 25 point (pieces) white 23 after 11:8 so it is like trading combo:) Never mind I got Qxc3 and Qf3 and then i stopped becouse I realised that white Q dies after check.|
|Aug-17-07|| ||Dr. J: <TheaN> seems to be the only person to have considered 23 ♕g4. In response, he (she?) gives the beautiful 23 ...♗f3 as winning. I believe this is correct, but 23 ... ♕b4 also seems to win. Comments, anyone?|
|Aug-17-07|| ||patzer2: Today's puzzle solution initiates an attack on the weakened back rank with 22...Qxc3!! Of course White cannot play 23. bxc3?, because mate follows 23...Rd1+ 24. Rxd1 Rxd1+ Kb2 25. Bc1+ Kb1 26. Ba3#. White attempts to escape this fate with 23. Bxc8, but Black still exploits the weakened back rank with the game continuation.|
|Aug-17-07|| ||ajk68: 12. e5 appears to be the novelty.
Is 13. Bxe5 a better continuation?
White can keep more initiative.
|Aug-17-07|| ||ahmadov: I think 22...Qxc3 was not that difficult to find for Friday...|
|Aug-17-07|| ||Crowaholic: Got it in about 3 minutes. I considered the Q sac early on but it took me a while to see the exact mate threat.|
22. ..Qxc3 23. bxc3 Rd1+ 24. Rxd1 Rxd1+ 25. Kb2 Bc1+ 26. Kb1 Ba3#
Now the only question is what happens if the Q sac is declined. White can try to mate or save his king. I don't see a way to accomplish the former, and the latter will still leave White a rook for 2 pawns down.
23. a3 Rd1+ 24. Rxd1 Rxd1+ 25. Ka2 Qe1 (..Bc1?? 26. bxc3) 26. Bd5 Bxd5+ winning another piece.
Looking at the solution... hmm, should have considered 23. Bxd8. This is tough. What now? ..Qf3 maybe? Yes, ..Qf3 looks very good. White might try 24. Qf7, but ..Qd1+! is a nice refutation. In case of 24. c3 there is Qxf1+ and mate. In fact, I don't see a good defense against Qxf1+ *and* Qd1+. If 24. a3 then ..Qxf1+ 25. Ka2 Rxd8 and we're simply a rook for a pawn up. If 24. Rc1 then ..Rxd8 . Maybe there is something better, but this is good enough for now.
Looking further... 24. Bb7+. Wow. I really spent too little time on looking for counterplay.
Anyway, the "bishop bounce" mating pattern reminds me of a game I played against Chess: Titans (with the black pieces):
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Bd3 e5 6. dxe5 dxc4 7. Qa4+ Nc6 8. Bxc4 Ne4 9. Qc2 Bf5 10. f3 Nxc3 11. Bxf7+ Kf8 12. Qxf5 Qd1+ 13. Kf2 Ne4+ 14. fxe4 Be1+ 15. Kf1 Bh4#
The difficulty setting was 5 out of 10, in case anyone wonders.
|Aug-17-07|| ||beenthere240: I think 22... Qxc3 is forced. Any other queen move and black simply loses the exchange and after 24. a3 the back row mate threats are gone and white can think about getting a rook on f7. The puzzle starts after 23. Bxd8 and black has to move the queen.
Of course black saw this trap long before in playing 20...Nd2+ -- which goes to show you how good these guys (and gals) are.|
|Aug-17-07|| ||wanabe2000: As most, I thought 22.....Qc3 was pretty easy to calculate with the forced mate if 23.bc3? What a shock when white played 23. Bd8. Never saw 23....Qf3. Great game and puzzle.|
|Aug-18-07|| ||MostlyAverageJoe: Well, thanks to spontaneous and unexpected computer reboot, I managed to get a couple CPU cycles for a quick analysis before resuming analysis for the GMT game. Surprisingly, the best line for white seems to be something along the line 23. a3 Qc8 24. Bxd8 Qxe6 25. Bxe6 Bxd8 (see MostlyAverageJoe chessforum for more details).|
One weirdness (not unexpected) with this puzzle is that the first move (really obvious for humans) is much harder for the computer to find. The second one is easy (Tue level) for the computers, but much harder for humans, I think.
|Aug-20-07|| ||kaligula: to <euripides> just 24.ed !!!! it's a great blunder 23.... Qd4 ?????? that's all|
|Aug-20-07|| ||euripides: <kal> perhaps you mean 23...Qd3 24 cxd3 ? Anyway my suggestion was 23...Qd4, though as <richard> pointed out 24.Bxg5 wins by covering c1.|
|Feb-14-08|| ||nolanryan: holy crap|
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