MESON Chess Problem Database

Problem Display
PID: 231447 (5Q2/6r1/7k/6N1/6K1/8/8/8 w - - 0 1)

Szasz, Lajos

Magyar Sakkvilag, 1927

5Q2/6r1/7k/6N1/6K1/8/8/8

#2

3 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kg6
      • 2.Qd6#
  • Tries
    • 1.Qh8+?
      • 1...Rh7
        • 2.Qf6#
        • 2.Qxh7#
      • 1...Kg6!
  • Keys
    • 1.Qf6+!
      • 1...Rg6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);N_PINS(B),N_SPINR(b),P-FLIGHT::QAR(C)
  • Tries
    • Try
      • Q(C);CHECK,N_PINR(b)
      • Refutation
        • K(a);N_PINS(B),P-FLIGHT
  • Actual
    • Q(C);CHECK,N_PINR(b)
    • Vars
      • R(b);OGATE,P_SPINR(b),SBLOCK::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).