MESON Chess Problem Database

Problem Display
PID: 241805 (2Q2N2/2p5/1kN5/8/2K5/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1929

2Q2N2/2p5/1kN5/8/2K5/8/8/8

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Qa6#
  • Tries
    • 1.Kd4?
      • 1...Kxc6
        • 2.Qa6#
      • 1...Kb5!
    • 1.Qxc7+?
      • 1...Ka6
        • 2.Sb4#
        • 2.Sb8#
        • 2.Qa7#
      • 1...Kxc7!
    • 1.Qb8+?
      • 1...Ka6
        • 2.Qa7#
        • 2.Qb5#
      • 1...Kxc6!
  • Keys
    • 1.Se6!
      • 1...Kxc6
        • 2.Qxc7#

FEATURES

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