MESON Chess Problem Database

Problem Display
PID: 242039 (3N1Q2/2kP1P2/K1P5/8/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

3N1Q2/2kP1P2/K1P5/8/8/8/8/8

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kb8
      • 2.Se6#
  • Tries
    • 1.Qc5?
      • 1...Kb8
        • 2.Qa7#
      • 1...Kxd8!
    • 1.Qd6+?
      • 1...Kxd8
        • 2.c7#
        • 2.f8Q#
        • 2.f8R#
      • 1...Kxd6!
    • 1.Qe8?
      • 1...Kb8
        • 2.Se6#
      • 1...Kd6!
    • 1.Qg8?
      • 1...Kb8
        • 2.Se6#
      • 1...Kd6!
    • 1.Qh8?
      • 1...Kb8
        • 2.Se6#
      • 1...Kd6!
  • Keys
    • 1.Sb7!
      • 1...Kxc6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::QAR(F)+S(E)
  • Tries
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(F)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR(F)+S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR(F)+S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR(F)+S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(a);P-FLIGHT,XP(B)::QAR1(F)
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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).