MESON Chess Problem Database

Problem Display
PID: 231599 (6N1/4p3/1K1k4/8/4Q3/2P5/8/8 w - - 0 1)

Renaud, Georges

Munchner Post, 1927

6N1/4p3/1K1k4/8/4Q3/2P5/8/8

#2

4 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qc6#
    • 1...e6
      • 2.Qd4#
  • Tries
    • 1.c4?
      • threat
        • 2.Qd5#
        • 2.Qxe7#
      • 1...e5
        • 2.Qd5#
        • 2.Qc6#
      • 1...e6
        • 2.Qd4#
      • 1...Kd7!
  • Keys
    • 1.Kb7!
      • 1...Kc5
        • 2.Qc6#
      • 1...Kd7
        • 2.Qxe7#
      • 1...e5
        • 2.Qc6#
      • 1...e6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR1(B)
    • P(b);SBLOCK::QAR2(B)
  • Tries
    • Try
      • P(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);SBLOCK::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);P-FLIGHT::QAR1(B),XP(b)
      • P(b);SBLOCK::QAR1(B)
      • P(b);SBLOCK::QAR2(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).