MESON Chess Problem Database

Problem Display
PID: 10039 (1Q5B/1p1k1p2/r5r1/b1PN1p2/2KR3q/8/8/8 w - - 0 1)

Rice, John Michael

1st Prize, Problem 037. TT, 1961

1Q5B/1p1k1p2/r5r1/b1PN1p2/2KR3q/8/8/8

#2

6 + 8

3147 Chess Problems: Introduction to an Art 1963
6479 Problemschach (Sidler) 1968
23 Die Schwalbe 1969
133 The Problemist Supplement 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qe8#
    • 1...Ke6
      • 2.Qc8#
  • Tries
    • 1.Sb6+?
      • 1...Kc6
        • 2.Qc8#
      • 1...Ke6
        • 2.Qe5#
        • 2.Qd6#
      • 1...Ke7!
  • Keys
    • 1.Sf6+!
      • 1...Kc6
        • 2.Qd6#
      • 1...Ke6
        • 2.Qe8#
      • 1...Ke7
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(g);S_FLIGHT::QAB(E)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(g);S_FLIGHT::QAR2(E)
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • S(D);CHECK
    • Vars
      • K(g);S_FLIGHT::QAR1(E)
      • K(g);S_FLIGHT::QAR2(E)
      • K(g);P-FLIGHT::QAR1(E)
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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).