# Serial Helpstalemate in 153

• 2 years ago · Quote · #1

"You have to find a sequence of 153 Black moves in a row (without giving or walking into check; White not moving) so as to reach a position where White can make one move, stalemating Black."

It is worth it.

Enjoy

• 22 months ago · Quote · #2

Ridiculously stupid

• 22 months ago · Quote · #3

I have an idea. Rg4, Rh6, Kh2, Kh3, Kh4, Kh5, Rh4, Rh2, Kh3, Rh4, Rg4, K moves,  DOESN'T take the darksquared bishop, then takes the rook on d3, and we go back to our rook maneuver. K moves to h3, Rh4, Rh6, Kh4, Kh5, Rh4, Rg4, K moves to e1, Kxd1, K moves back to h6, (with a few rook moves) Kg7, Kf7, Ke8, Kd7, K moves, takes the knight on b3, and then we go back to Kd1 (with a few more rook moves) Kc1, Kxb1, Kc1, King moves all the way back to b3 without taking the rook on a2 or dark squared bishop. Finally, Kxc3, Kxd4, K moves back to g7. A few rook maneuvers and we have this position: [diagram]. Now we advance the h pawn to h4. The only move that black can make now is Kg1, which is stopped by Bc5!

• 22 months ago · Quote · #4

The only problem is I have no idea how many moves those are!

• 22 months ago · Quote · #5

working off of Rubidium's idea- but it is way shorter than 153 moves!!!!!!!
• 22 months ago · Quote · #6

cool thrashing

• 20 months ago · Quote · #7
Caiello wrote:

working off of Rubidium's idea- but it is way shorter than 153 moves!!!!!!!

Come on, I thought the task was clear enough! "153 Black moves in a row" means that white is only allowed to move at the very end of the sequence of black moves. It is not an orthodox problem, please take it seriously :)

• 20 months ago · Quote · #8
Here's rubidium's solution with one small correction:and then we go back to Kd1 (with a few more rook moves) Kc1, Kxb1, Kc1, King moves all the way back to b3 Kc1 is illegal because of the N on b3 so after Kd1 we have to go round to b3 first, then b1, then capture on c3 and d4. It takes 153 black moves altogether (ignore the white moves, they dont do anything but have to put them in.)
• 20 months ago · Quote · #9

So at the end of the 153 consecutive Black moves, White can only make one possible move? And that move stalemates Black?

I only ask because a "helpmate" is usually a problem where Black is checkmated at the end, not stalemated.

• 7 months ago · Quote · #10
-waller- wrote:

So at the end of the 153 consecutive Black moves, White can only make one possible move? And that move stalemates Black?

No, at the end of the 153 consecutive Black moves there exists some white move which stalemates Black.

• 7 months ago · Quote · #11
-waller- wrote:

So at the end of the 153 consecutive Black moves, White can only make one possible move? And that move stalemates Black?

I only ask because a "helpmate" is usually a problem where Black is checkmated at the end, not stalemated.

Yes it's a mistake. It's supposed to be serial stalemate. In a serial helpmate the final result is checkmate.

• 6 months ago · Quote · #12

Yes, sorry. I miswrote the title, and then I had troubles editing it. Apparently for some reason it is not allowed to edit the title.

• 6 months ago · Quote · #13

You can edit the title. Go to this page (http://www.chess.com/members/view_content/Mottian), you will see something looking like this.

Then you click on the link saying "Edit" that I've circled in red. (on the same row as "Serial Helpmate in 153"). An editor will open that allows you to change the title.

• 6 months ago · Quote · #14

Thank you piphilologist ! :)

• 6 months ago · Quote · #15

Yes that's nice, I also didn't know that.