MESON Chess Problem Database

Problem Display
PID: 255596 (8/2B2R2/2p5/3k4/8/5P2/2K2Q2/8 w - - 0 1)

Letov, K

Kudesnik, 1997

8/2B2R2/2p5/3k4/8/5P2/2K2Q2/8

#2

5 + 2

15601 Albrecht-Leiss-Degener Collection 2021
3713 Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kc3?
      • 1...Ke6
        • 2.Qa2#
      • 1...c5!
    • 1.Kd3?
      • 1...Ke6
        • 2.Qa2#
      • 1...c5!
    • 1.Rf5+?
      • 1...Kc4
        • 2.Qh4#
        • 2.Qc5#
      • 1...Ke6!
    • 1.Qe3?
      • 1...c5
        • 2.Qe4#
      • 1...Kc4!
    • 1.Qd4+?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qd7#
      • 1...Kxd4!
    • 1.Qc5+?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qf5#
      • 1...Kxc5!
  • Keys
    • 1.Qh4!
      • 1...Kc5
        • 2.Rf5#
      • 1...Ke6
        • 2.Qc4#
      • 1...c5
        • 2.Qe4#

This anticipates 215293(1999)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
      • Refutation
        • P(b);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
      • Refutation
        • P(b);
    • Try
      • R(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(a);N_GUARD,P-FLIGHT::R(E)
      • K(a);N_GUARD,S_FLIGHT::QAB(B)
      • P(b);SBLOCK::QAB1(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).