MESON Chess Problem Database

Problem Display
PID: 227683 (8/2K1p3/4p3/3kN3/5Q2/8/8/8 w - - 0 1)

Merenyi, Lajos

Magyar Sakkvilag, 1926

8/2K1p3/4p3/3kN3/5Q2/8/8/8

#2

3 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qc4#
  • Tries
    • 1.Kb7?
      • 1...Kd6
        • 2.Qd4#
      • 1...Kc5!
    • 1.Kb8?
      • 1...Kd6
        • 2.Qd4#
      • 1...Kc5!
    • 1.Kc8?
      • 1...Kd6
        • 2.Qd4#
      • 1...Kc5!
    • 1.Kd8?
      • 1...Kd6
        • 2.Qd4#
      • 1...Kc5!
    • 1.Qa4?
      • 1...Kc5
        • 2.Qc4#
      • 1...Kxe5!
    • 1.Qe4+?
      • 1...Kc5
        • 2.Qc4#
      • 1...Kxe4!
    • 1.Qg4?
      • 1...Kc5
        • 2.Qc4#
      • 1...Kxe5!
    • 1.Qh4?
      • 1...Kc5
        • 2.Qc4#
      • 1...Kxe5!
  • Keys
    • 1.Kb6!
      • 1...Kd6
        • 2.Qd4#

FEATURES

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