MESON Chess Problem Database

Problem Display
PID: 218811 (1k6/1b6/pK6/8/Q7/8/8/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1977

1k6/1b6/pK6/8/Q7/8/8/8

#2

2 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc8
      • 2.Qe8#
    • 1...Bh1
      • 2.Qe8#
    • 1...Bg2
      • 2.Qe8#
    • 1...Bf3
      • 2.Qe8#
    • 1...Be4
      • 2.Qe8#
    • 1...Bd5
      • 2.Qe8#
    • 1...Ba8
      • 2.Qe8#
  • Tries
    • 1.Qf4+?
      • 1...Kc8
        • 2.Qc7#
      • 1...Ka8!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qxb7#
      • 1...Ka8
        • 2.Qxb7#
      • 1...Bh1
        • 2.Qe8#
        • 2.Qd8#
      • 1...Bg2
        • 2.Qe8#
        • 2.Qd8#
      • 1...Bf3
        • 2.Qe8#
        • 2.Qd8#
      • 1...Be4
        • 2.Qe8#
        • 2.Qd8#
      • 1...Bd5
        • 2.Qe8#
        • 2.Qd8#
      • 1...Bc6
        • 2.Qd8#
      • 1...Ba8
        • 2.Qe8#
        • 2.Qc7#
        • 2.Qd8#
      • 1...Bc8
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • K(c);P-FLIGHT::QAR2(A)
    • B(b);N_GUARD::QAR(A)
    • B(b);N_GUARD,SBLOCK::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XB(b)
    • Vars
      • K(c);P-FLIGHT::QAB1(A),XB(b)
      • B(b);N_GUARD::QAR2(A)
      • B(b);OGATE,SBLOCK::QAB1(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).