MESON Chess Problem Database

Problem Display
PID: 121275 (8/1PPp4/k2K4/pN6/bp2B3/1n6/8/8 w - - 0 1)

Ort, Josef

Pisecke listy, 1916

8/1PPp4/k2K4/pN6/bp2B3/1n6/8/8

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.b8Q?
      • threat
        • 2.Qb7#
        • 2.c8Q#
        • 2.c8B#
      • 1...Bxb5
        • 2.Qb7#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sa1
        • 2.Qb7#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sc1
        • 2.Qb7#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sd2
        • 2.Qb7#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sd4
        • 2.Qb7#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sc5!
    • 1.c8Q?
      • threat
        • 2.b8Q#
        • 2.b8R#
      • 1...Kxb5
        • 2.b8Q#
        • 2.b8R#
      • 1...Kb6
        • 2.b8Q#
        • 2.b8R#
      • 1...Sa1
        • 2.b8Q#
        • 2.b8R#
      • 1...Sc1
        • 2.b8Q#
        • 2.b8R#
      • 1...Sd2
        • 2.b8Q#
        • 2.b8R#
      • 1...Sd4
        • 2.b8Q#
        • 2.b8R#
      • 1...Sc5!
  • Keys
    • 1.c8S!
      • threat
        • 2.Sc7#
      • 1...Kxb5
        • 2.Bd3#
      • 1...Bxb5
        • 2.b8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(D);
      • Threat
        • DUALS(3)
      • Refutation
        • S(a);
    • Try
      • P(E);
      • Threat
        • P=Q
      • Vars
        • K(e);S_FLIGHT,XS(B)::P=Q
        • K(e);P-FLIGHT::P=Q
        • S(a);::P=Q
      • Refutation
        • S(a);
  • Actual
    • P(E);
    • Threat
      • S(B)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(B)::B(A)
      • B(b);SBLOCK,XS(B)::P=S
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).