[Retros] Happy New Year

[andrew buchanan]

 Hi Noam (& all)

This one's sound. The useful Jacobi syntax for checking one-sided PGs is slightly tricky and afaics not quite spelled out in the current documentation, so here it is:

englishn forsyth 8/8/8/8/8/8/PPPPPPPP/RNBQKBNR
stipulation ser-a=>b24.0 forsyth R5R1/8/5P2/8/P2B2PP/KPN5/B1PPP3/Q5N1
My own effort this year uses the format-breaking "elastic belt", which can basically deliver us any moderately-sized integer. See https://drive.google.com/file/d/1j8dM0tX8tEVwXSMIwVkxul788iRqd0ze/view p 1399-1400. Begone, Pascal's triangle! :) 
Art remains, nonetheless, through the felicitous harmony of the shortest White & Black belts for 44 & 46 respectively. https://www.janko.at/Retros/d.php?ff=rnbqk1n1/p1b1pp2/rp1p2p1/P1p4p/1P2PR2/5P2/2PP1BPP/1N1QKBNR PG in 10.0. How many solutions?
Happy New Year,Praying for World Peace,
Andrew

    On Tuesday, January 2, 2024 at 09:42:25 AM GMT+8, Elkies, Noam <elkies at math.harvard.edu> wrote:  
 
 Correction: I wrote "Hope I did this right", but I didn't; try this:

  https://www.janko.at/Retros/d.php?ff=R5R1/8/5P2/8/P2B2PP/KPN5/B1PPP3/Q5N1

Sorry for the error!  Hope this one's sound . . .

NDE
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