MESON Chess Problem Database

Problem Display
PID: 169241 (8/8/8/kBKn4/8/8/1PP5/8 w - - 0 1)

Khalma, Mikhail

12/21 Place, SuperProblem 181. TT, 2017

8/8/8/kBKn4/8/8/1PP5/8

#2

4 + 2

6490 yacpdb 2018
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.b4#
    • 1...Se3
      • 2.b4#
    • 1...Sf4
      • 2.b4#
    • 1...Sb6
      • 2.b4#
    • 1...Sf6
      • 2.b4#
    • 1...Sc7
      • 2.b4#
    • 1...Se7
      • 2.b4#
  • Tries
    • 1.b3?
      • 1...Sc3
        • 2.b4#
      • 1...Se3
        • 2.b4#
      • 1...Sf4
        • 2.b4#
      • 1...Sb6
        • 2.b4#
      • 1...Sf6
        • 2.b4#
      • 1...Sc7
        • 2.b4#
      • 1...Se7
        • 2.b4#
      • 1...Sb4!
    • 1.c4?
      • 1...Sc3
        • 2.b4#
      • 1...Se3
        • 2.b4#
      • 1...Sf4
        • 2.b4#
      • 1...Sb6
        • 2.b4#
      • 1...Sf6
        • 2.b4#
      • 1...Sc7
        • 2.b4#
      • 1...Se7
        • 2.b4#
      • 1...Sb4!
  • Keys
    • 1.c3!
      • 1...Sxc3
        • 2.b4#
      • 1...Se3
        • 2.b4#
      • 1...Sb4
        • 2.cxb4#
      • 1...Sf4
        • 2.b4#
      • 1...Sb6
        • 2.b4#
      • 1...Sf6
        • 2.b4#
      • 1...Sc7
        • 2.b4#
      • 1...Se7
        • 2.b4#

Anticipated by 174533(2017)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::P(A)
  • Tries
    • Try
      • P(A);
      • Vars
        • S(b);N_GUARD::P(A)
      • Refutation
        • S(b);
    • Try
      • P(B);
      • Vars
        • S(b);N_GUARD::P(A)
      • Refutation
        • S(b);
  • Actual
    • P(B);
    • Vars
      • S(b);N_GUARD,XP(B)::P(A)
      • S(b);N_GUARD::P(A)
      • S(b);OGATE::P(B),XS(b)
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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).