MESON Chess Problem Database

Problem Display
PID: 216177 (b3K3/3p4/2k5/7R/1Q6/8/8/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1974

b3K3/3p4/2k5/7R/1Q6/8/8/8

#2

3 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bb7
      • 2.Qc5#
  • Tries
    • 1.Rb5?
      • threat
        • 2.Qc5#
      • 1...d6
        • 2.Qc4#
      • 1...Kc7!
    • 1.Qb5+?
      • 1...Kd6
        • 2.Qxd7#
      • 1...Kc7!
  • Keys
    • 1.Kd8!
      • 1...Bb7
        • 2.Qc5#
      • 1...d5
        • 2.Rh6#
      • 1...d6
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK::QAR1(A)
  • Tries
    • Try
      • R(B);
      • Threat
        • QAR1(A)
      • Vars
        • P(b);SBLOCK::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(A),XP(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • B(c);SBLOCK::QAR1(A)
      • P(b);N_GUARD,SBLOCK::R(B)
      • P(b);SBLOCK::QAB1(A)
HTML5 logo

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).