MESON Chess Problem Database

Problem Display
PID: 270029 (3K4/8/2p1kB2/2P5/4Np2/3B1n2/6Q1/8 w - - 0 1)

Petrasinovic, Petrasin

Buletin Problemistic, 2000

3K4/8/2p1kB2/2P5/4Np2/3B1n2/6Q1/8

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qa2#
      • 2.Qg8#
  • Tries
    • 1.Bh8?
      • 1...Kd5
        • 2.Qa2#
        • 2.Qg8#
      • 1...Kf5
        • 2.Sg5#
      • 1...Se1
        • 2.Sg5#
      • 1...Sg1
        • 2.Sg5#
      • 1...Sd2
        • 2.Sg5#
      • 1...Sh2
        • 2.Sg5#
      • 1...Sd4
        • 2.Sg5#
      • 1...Sh4
        • 2.Sg5#
      • 1...Se5
        • 2.Sg5#
      • 1...Sg5
        • 2.Sxg5#
      • 1...Kf7!
    • 1.Qh3+?
      • 1...Kd5
        • 2.Qd7#
      • 1...Kf7!
    • 1.Qg4+?
      • 1...Kd5
        • 2.Qd7#
        • 2.Qg8#
      • 1...Kf7!
  • Keys
    • 1.Bg7!
      • 1...Kd5
        • 2.Qa2#
      • 1...Kf5
        • 2.Sg5#
      • 1...Kf7
        • 2.Bc4#
      • 1...Se1
        • 2.Sg5#
      • 1...Sg1
        • 2.Sg5#
      • 1...Sd2
        • 2.Sg5#
      • 1...Sh2
        • 2.Sg5#
      • 1...Sd4
        • 2.Sg5#
      • 1...Sh4
        • 2.Sg5#
      • 1...Se5
        • 2.Sg5#
      • 1...Sg5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);
      • Vars
        • K(d);N_GUARD,S_CUTS(a),S_FLIGHT::B(B)+S(C)
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR2(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • K(d);N_GUARD,S_CUTS(a),S_FLIGHT::B(B)+S(C)
      • K(d);N_GUARD,S_FLIGHT::B(B)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(a)
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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).