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Up Topic The Rybka Lounge / Chess / tactical problem on chess.com
- - By Geomusic (*****) Date 2019-09-24 20:37 Edited 2019-09-24 20:50

https://www.chess.com/puzzles/problem/766734

Another 1400+ problem that in reality should be at the very LEAST 2400+!!!!!!All these blind 1400s are doing (at least 52.7% of them successfully completing this ridiculous puzzle) are seeing a promote possibility with open file pawn to c7 and praying hopefully a win somewhere without checking that after this queen promotes to c8, Black himself promotes his pawn to G1! BOTH SIDES NOW have 2 queens  ANDDDDDD black has more pawns!!! but it's a mate in 15 for  black anyway!! Ridiculous!!!!!!!!!!! There are just too many open squares to see the forced mate.  I mean I looked at q=g1 checking to see how murky a position it was for white with blacks extra pawns and decided qd7 looked the safer option(turns out computer analysis said it was a draw of course!!!) HAHA come on is this a joke??? This is an insanely difficult problem!!! So black's queen being a (C) of course moves to Qc3 instead in lieu of immediately queening on g1 DUE TO THE FACT that  had he moved p=qg1 FIRST that it would lead to the aforementioned mate in 15 SOOOOO he exchanges away his only protective piece to delay this force mate and awaits for white's queen instead to go to the f g h files to harass the black king and disallowing his poor pawn on the g file from ever promoting while at the same time gobbling up black's pawns in the process.  hahahahahahahahaha yeah I'm sure all the1400s on chess.com saw this, the resulting mate in 15 and all the sub-variations and decided- INDEED, lets push C7 it's OBVIOUSLY WINNING to 52.7% of 1400s! hahahaha Wow!!!!! not sure how to post the image I just have the link...
Attachment: board1.jpeg (62k)
Parent - - By Labyrinth (*****) Date 2019-09-25 16:12
Can you post a fen for the problem, the image and the problem link show different things and I'm just not sure what's up.
Parent - By Geomusic (*****) Date 2019-09-29 02:17
[img]
4Q3/8/2P2p1p/p4k2/8/KP3q2/P5p1/8 w - - 1 2
[/img] 

White to move:
Parent - By Labyrinth (*****) Date 2019-09-30 00:00

>Another 1400+ problem that in reality should be 2400+, all these blind 1400s are doing (at least 52.7% of them successfully completing this ridiculous puzzle) are seeing a promote possibility with open file pawn to c7 and praying for a win somewhere without checking that after this queen promotes to c8, black himself promotes his pawn to G1!


Not necessarily. Even a 1400 could see the g pawn is about to queen, why not get your own queen as well? After all, white queens with check.

>but it's a mate in 15 for black anyway


I think you mean white..

>There are just too many open squares to see the forced mate. I mean I looked at q=g1 checking to see how murky a position it was for white with blacks extra pawns and decided qd7 looked the safer option(turns out computer analysis said it was a draw of course!!!)


Qd7 allows the king to go to the e file, better to confine the king to the f and g files, as there are potential skewers on the g file.

>So black's queen being of course moves to Qc3 instead


There are just two lines to consider:

c7 g1=Q c8=Q+ Kf4■, (now the issue is that Kg3 will allow the king protect the new queen, so we prevent that by checking on the b8-h2 diagonal) Qc7+, the remaining g file squares allow the skewer so Kf5 and after Qed7+ black is either forced closer to the queens where there will be a for sure mating net, or onto one of the g file squares that allows the skewer. So this is a done deal.

(Note: c7 g1=Q c8=Q+ Kf4 Qc4+ also works just fine, if Kf5 it should be easy to have confidence that Qce6+ is going to put the lights out even if you don't see the variations, and if Kg3 you can kind of tell that one of those scenarios where white will trade queens to force the king away from the protection of the other is sure to happen.)

Or: c7 and the queen moves somewhere that eyes c8 such as c3 or b7, let's say c7 Qc3, c8=Q+ Qxc8, I think it's easy to see that moving the king instead of recapturing is going to end badly for black, again the variations aren't necessary. So Qxc8+ recapturing, and now the only issue is making sure the g pawn doesn't queen, this can get plenty complicated but surely one could be confident that this is achievable with the queen against the lone king.

>I'm sure all the 1400s on chess.com saw this, the resulting mate in 15 and all the sub-variations


Obviously this isn't necessary. I think it's just 'after c7 we either get 2vs2 queens where black's king is close to white's queens and one of black's queens is undefended and away from the action, or we get queen vs. lone king and passed pawn and we still have pawns of our own on the board. Qd7 just gives black escape squares and tempi to do who knows what with. Sure it can get complicated, but it's not nearly as nasty (or the 1400s lucky) as you're painting it imo.
Up Topic The Rybka Lounge / Chess / tactical problem on chess.com

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