MESON Chess Problem Database

Problem Display
PID: 79903 (6KN/8/B4B1k/8/6P1/5n2/8/8 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Variantim, 2008

6KN/8/B4B1k/8/6P1/5n2/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Bg7#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Sf7#
      • 1...Sg5
        • 2.Bg7#
      • 1...Se5!
    • 1.Bc3?
      • 1...Se1
        • 2.Bd2#
      • 1...Sg1
        • 2.Bd2#
      • 1...Sd2
        • 2.Bxd2#
      • 1...Sh2
        • 2.Bd2#
      • 1...Sd4
        • 2.Bd2#
      • 1...Sh4
        • 2.Bd2#
      • 1...Se5
        • 2.Bd2#
      • 1...Sg5
        • 2.Bg7#
      • 1...Kg5!
  • Keys
    • 1.Be2!
      • 1...Se1
        • 2.g5#
      • 1...Sg1
        • 2.g5#
      • 1...Sd2
        • 2.g5#
      • 1...Sh2
        • 2.g5#
      • 1...Sd4
        • 2.g5#
      • 1...Sh4
        • 2.g5#
      • 1...Se5
        • 2.g5#
      • 1...Sg5
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::B(C)
  • Tries
    • Try
      • B(B);
      • Threat
        • S(E)
      • Vars
        • S(a);SBLOCK::B(C)
      • Refutation
        • S(a);
    • Try
      • B(C);
      • Vars
        • S(a);N_GUARD::B(C)
        • S(a);N_GUARD::B(C),XS(a)
        • S(a);SBLOCK::B(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • S(a);N_GUARD::P(A)
      • S(a);SBLOCK::B(C)
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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).