MESON Chess Problem Database

Problem Display
PID: 198383 (8/3nK3/8/3B4/1PNkPp2/2pb4/5P1b/3Q4 w - - 0 1)

Trilling, Anton AC

Essener Anzeiger, 1920

8/3nK3/8/3B4/1PNkPp2/2pb4/5P1b/3Q4

#2

7 + 6

6490 yacpdb 2019
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...c2
      • 2.Qa1#
  • Tries
    • 1.Sa5?
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Sc6#
      • 1...c2
        • 2.Qa1#
      • 1...Se5
        • 2.Sb3#
      • 1...Sb8!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sf3#
      • 1...Ke5
        • 2.Sf3#
      • 1...cxd2
        • 2.Qa1#
      • 1...c2
        • 2.Qa1#
      • 1...Se5
        • 2.Sb3#
      • 1...f3
        • 2.Sxf3#

This anticipates 121481(1952)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::QAB(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • K(d);N_SPINB(c),S_FLIGHT::S(D)
        • P(b);OGATEB::QAB(A)
        • S(f);SBLOCK::S(D)
      • Refutation
        • S(f);
  • Actual
    • S(D);N_PINB(c)
    • Threat
      • S(D)
    • Vars
      • K(d);S_FLIGHT::S(D)
      • P(b);OGATEB,XS(D)::QAB(A)
      • P(b);OGATEB::QAB(A)
      • S(f);SBLOCK::S(D)
      • P(e);::S(D),XP(e)
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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).