MESON Chess Problem Database

Problem Display
PID: 169273 (Q7/1R6/2p5/8/K7/2p5/8/k7 w - - 0 1)

Kuhn, Rainer

SuperProblem 190. TT, 2017

Q7/1R6/2p5/8/K7/2p5/8/k7

#2

3 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Ka3?
      • 1...c2
        • 2.Qh8#
      • 1...c5!
    • 1.Qf8?
      • threat
        • 2.Qa3#
      • 1...Ka2
        • 2.Qa3#
      • 1...c5!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Kb4#
      • 1...Ka2
        • 2.Kb4#
      • 1...c5
        • 2.Kb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);OGATEB::QAB(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • P(c);
  • Actual
    • R(B);
    • Threat
      • QAR(C)+K(A)
    • Vars
      • K(a);P-FLIGHT::QAR(C)+K(A)
      • P(c);::QAR(C)+K(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).