MESON Chess Problem Database

Problem Display
PID: 205703 (8/8/8/8/8/2K4N/p3k1P1/Q7 w - - 0 1)

Schonberger, Tibor

Magyar Sakkvilag, 1925

8/8/8/8/8/2K4N/p3k1P1/Q7

#2

4 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe1#
  • Tries
    • 1.Kc4?
      • 1...Ke3
        • 2.Qe1#
      • 1...Kd2!
    • 1.Qd1+?
      • 1...Ke3
        • 2.Qf3#
        • 2.Qe1#
        • 2.Qd3#
      • 1...Kxd1!
    • 1.Qf1+?
      • 1...Ke3
        • 2.Qd3#
        • 2.Qe1#
        • 2.Qf3#
      • 1...Kxf1!
    • 1.Qxa2+?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf1
        • 2.Qf2#
      • 1...Ke3
        • 2.Qe6#
      • 1...Ke1!
  • Keys
    • 1.Kc2!
      • 1...Ke3
        • 2.Qe5#

FEATURES

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