MESON Chess Problem Database

Problem Display
PID: 228157 (8/8/8/8/2Q5/8/2Nk4/1K6 w - - 0 1)

Lokker, Miklosh S

Deutsche Schachzeitung, 1968

8/8/8/8/2Q5/8/2Nk4/1K6

#2

3 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd1
      • 2.Qd3#
  • Tries
    • 1.Sd4?
      • 1...Kd1
        • 2.Qe2#
        • 2.Qc1#
      • 1...Ke1
        • 2.Qe2#
      • 1...Ke3!
    • 1.Qb3?
      • 1...Kd1
        • 2.Qd3#
      • 1...Ke2!
    • 1.Qb5?
      • 1...Kd1
        • 2.Qd3#
      • 1...Kc3!
    • 1.Qa6?
      • 1...Kd1
        • 2.Qd3#
      • 1...Kc3!
    • 1.Qe4?
      • 1...Kd1
        • 2.Qd3#
        • 2.Qe1#
      • 1...Kc3!
  • Keys
    • 1.Kb2!
      • 1...Kd1
        • 2.Qd3#

FEATURES

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