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Originally posted by SwissGambitCould it be that the rook on g8 is the promoted piece?!
What if I told you the pawn never died?
This seems to work! First the black a-pawn moves; then the dark-squared bishop makes its way to b8; then two rooks, two knights, and the queen assemble on the g1-a7 diagonal and are gobbled up by the white f2 pawn on its way to a7. Once the pawn is on a7 the pawn can move b7-b6 releasing the light-squared bishop. The bishop is then free to do its devilry on b3 letting the a-pawn through to promote to a rook.
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Originally posted by Green PaladinThere it is.
Could it be that the rook on g8 is the promoted piece?!
This seems to work! First the black a-pawn moves; then the dark-squared bishop makes its way to b8; then two rooks, two knights, and the queen assemble on the g1-a7 diagonal and are gobbled up by the white f2 pawn on its way to a7. Once the pawn is on a7 the pawn can move b7-b6 releasing the l ...[text shortened]... The bishop is then free to do its devilry on b3 letting the a-pawn through to promote to a rook.
The position is legal, and Black must retract ...f7-f5 so that white can retract Rf6. Per the sequence described, pawn retractions aren't possible until the rook unpromotes!
This proves that last move was ...f7-f5 and white can proceed with 1.ef6, mating in 4.
Originally posted by SwissGambitWoohoo!
There it is.
The position is legal, and Black must retract ...f7-f5 so that white can retract Rf6. Per the sequence described, pawn retractions aren't possible until the rook unpromotes!
This proves that last move was ...f7-f5 and white can proceed with 1.ef6, mating in 4.
That was taxing! Thanks for coaching me through it.
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Originally posted by SwissGambitWhy is it not possible that Black's last move was f6-f5? Ok, then White's last move had to be b2-b3, but what's the problem with that?
There it is.
The position is legal, and Black must retract ...f7-f5 so that white can retract Rf6. Per the sequence described, pawn retractions aren't possible until the rook unpromotes!
This proves that last move was ...f7-f5 and white can proceed with 1.ef6, mating in 4.
Edit: Of course, b2-b3 must have happened earlier to let Whites dark square bishop develop.
Edit 2: But what was Black's previous move (before Whites Rf6-g6)? f5-f4 looks like the only altenative, but didn't we agree that White's bishop must have been captured in f4.
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Originally posted by jheikkiWhat about this?
Why is it not possible that Black's last move was f6-f5? Ok, then White's last move had to be b2-b3, but what's the problem with that?
Edit: Of course, b2-b3 must have happened earlier to let Whites dark square bishop develop.
Edit 2: But what was Black's previous move (before Whites Rf6-g6)? f5-f4 looks like the only altenative, but didn't we agree that White's bishop must have been captured in f4.
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Originally posted by Mariska AngelaQc8 with Be7+ to follow...
Hello,
I just wanted to show a sample of what we offer in Club 257 and many more interesting chess related topics, while having a friendly atmosphere at the same time. Players applying to the club will be considered, as we do not accept everyone.
The puzzle presented below is mainly for the highly ranked players, sadly enough player ...[text shortened]... nk you.
[fen]n2Bqk2/5p1p/p4KP1/5Q2/8/8/8/8 w - - 0 1[/fen]
White to move and win!
-MA
As a CONNOISSEUR of chess programs and with over 30 years of CHESS under my belt, I proclaim this a DRAWN position. TRUST me on that. I fed it into my UNMATEABLE program and ran dozens of DEEP PLY shootouts with all but two games ending in a draw. The two games white won took OVER 30 moves.
Please close this thread NOW.
Originally posted by teacher1Dude, make a move first before making a demand. A lover of programs and a quantity of years played does not a GM make, or several of us would be getting titles. TRUST me on that! 😉
As a CONNOISSEUR of chess programs and with over 30 years of CHESS under my belt, I proclaim this a DRAWN position. TRUST me on that. I fed it into my UNMATEABLE program and ran dozens of DEEP PLY shootouts with all but two games ending in a draw. The two games white won took OVER 30 moves.
Please close this thread NOW.
Although I am NOT a GM, I play better than one. I play computer-assisted chess--some call in CENTAUR chess.
I have come to rely very heavily on CHESS programs to solve problems FOR me.
If you are referring me to PLAY a chess game on this site, well, I simply cannot.
The game is a draw at the highest levels. The only CORRECT way for white to win is if black makes an INFERIOR move. And you can take that to the BANK.