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 CHESS SOLVINGTournamentsRating lists1-Apr-2024
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MatPlus.Net Forum General Construct the longest ser-x with a Black homebase

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Cooked:
5. gxh8Q 6. Qd4 7. Sxa7 8. Kb5 9. Sxc8 10. Sxe7 11. Sc6 12. Sxb8 13. Sxd7 14. Sc5 15. Sxb7 16. Kc6 17. Qd7 Qxd7#

Okay, Olaf's speed is very impressive ... so may be an additional white Pawn e5 helps in (117) and/or (120).

@(122) Is there any way we can see the diagram. It's very hard to track problems without diagrams.

Frank Richter - correction of (117)
(= 5+16 )

ser-s#18

Cooked:
5. Sxg8 6.Sxe7 7. g8Q 8. Qg4 9. Sc6 10. Sxb8 11. Sxd7 12. Sc5 13. Sxb7 14. Kb5 15. Kc6 16. Qd7 Bxd7/Qxd7#

Frank Richter - correction of (120)
(= 5+16 )

ser-s#17 C+

1.f4 4.f:g7 5.g:h8R 6.R:g8 7.Rg6 8.Ra6 9.R:a7 10.R:a8 11.R:b8 12.R:b7 13.Ka6 14.Ka7 15.Rb8 16.Ra8 17.S:c7+ Q:c7#

It's time for a sixth interim balance. (EDIT 03/27 16:41)

Current records are:

ser-s# ..17 .......... (124) Frank Richter
ser-s# ..17 .......... (128) Michael Schreckenbach
ser-s= ..25 .......... (91) Miodrag Mladenović (C?)
Ser-h# .11 .......... (42) Michel Caillaud / Arno Tüngler
Ser-# ...11 .......... (39) Arno Tüngler (starter)
Ser-!= ..26 .......... (118) Dragan Stojnić (C?)
Ser-!# ..13 .......... (127) Joost de Heer / Michael Schreckenbach
Ser-!# MMM 14 .. (74) Frank Richter
Ser-!# MMM 14 .. (78) Joost de Heer

Diagram for 118 (if I right write in algebraic)

(= 10+16 )

ser-!=26(C-)
(-Qh1 ser-!=25)

Joost de Heer / Michael Schreckenbach
(= 4+16 )

ser-!#13

1. g4 2. Sg3 3. Sf5 4. Se7 5. Sc8 6. Se7 7. Sc6 8. Sb8 9. Sa6 10. Sc5 11. Sb7 12. Ka6 13. Ka7!#

Michael Schreckenbach
(= 6+16 )

ser-s#17

1. g4 2. g5 3. g6 4.gxh7 5. hxg8B 6. Bh7 7. Bb1 8. Sf5 9. h4 10. h5 11. h6 12. hxg7 13. gxh8Q 14. Qd4 15. Qxa7 16. Qa2 17. Sg7+ Bxg7#

Double Exzelsior

Wow! And a lovely pinmate!

blank (cooked in 15)

While not being a length record I think the beneath still deserves a publication here.
Maybe Frank is okay with that co-production??

FR & AT
(= 3+16 )

ser-s#16 C+

1.a4! 2.a5 3.a6 4.Ka5 5.b4 6.b5 7.b6 8.bxa7 9.axb8=R 10.Rxa8 11.axb7 12.Ka6 13.Ka7 14.b8=S 15.Sa6 16.Sxc7+ Qxc7#

Also two excelsiors and minimum white force!

@(131)
Beautiful problem. Even if not the record, I am glad you decided to publish this problem.

Yes, very nice and this is fully your work, Arno!
But many thanks for the offer.

(= 8+16 )

ser-r=24 (C-)

COOKED BY ARNO (135)

@(134)
Cooked by 1.Rd3 2.Rxb7 3.Rxb8 4.Bxa7 5.Rb7 6.Kd4 7.Kc4 8.Kb4 9.Ka5 10.Ka6 11.Rxd7 12.Rd3 13.Rg3 14.Rxg7 15.Rg6 16.Rb6 17.c4 18.c5 19.c6 20.h4 21.h5 22.h6 23.Qd2 Qxd2=

Edit: Missed the wBd4… so now the above cook works!

I am wondering if moving wPh2 to f2 fixes this problem?
(= 8+16 )

ser-r=24 (C?)

(136) is cooked as well: 1. f4 2. f5 3. f6 4. fg7 5. gh8=B 6. Ra6 7. Ba7 8. Bb8 9. 9. Ra8 10. Bd4 11. Bda7 12. Rc7 13. Rd7 14. Kd4 15. Kc5 16. Rb7 17. b6 18. Kb5 19. Ka6 20. c4 21. c5 22. c6 23. c7 24. Qd5 Qd5=

(136) I dont know about reflex rule in series genre;
is this cook if White have shorter stalemate to Black?
1.Ra6 2-11.Ba7,b8,c7,d8,e7,f8,g7,h8,g7,f8 12.Qg4 13.Qg8 14.Qh7 15.Qh6 16.b6 17.Kd4 19.Kd6 20.Be7=

No, reflex means that you must fulfill the stipulation if you can in one move, not in 20.

(Deleted)