MESON Chess Problem Database

Problem Display
PID: 205563 (8/3K4/8/2pk4/5Q2/1N6/8/8 w - - 0 1)

Lazard, Frederic

La Strategie, 1925

8/3K4/8/2pk4/5Q2/1N6/8/8

#2

3 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qd4#
      • 2.Qf5#
  • Tries
    • 1.Kc7?
      • 1...c4
        • 2.Qf5#
      • 1...Ke6!
    • 1.Qh4?
      • 1...c4
        • 2.Qd4#
      • 1...Ke5!
  • Keys
    • 1.Sd2!
      • 1...c4
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(a);SBLOCK::QAR2(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(a);N_GUARD::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(A);
    • Vars
      • P(a);::QAR1(B)
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).