MESON Chess Problem Database

Problem Display
PID: 231449 (8/5p2/5PpR/3K1k2/7Q/8/8/8 w - - 0 1)

Neukomm, Gyula (Julius) R

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/5p2/5PpR/3K1k2/7Q/8/8/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qe4#
  • Tries
    • 1.Kd4?
      • 1...g5
        • 2.Qe4#
      • 1...Ke6!
    • 1.Rh5+?
      • 1...g5
        • 2.Qxg5#
      • 1...gxh5!
    • 1.Qd4?
      • 1...g5
        • 2.Qe4#
      • 1...Kg5!
    • 1.Qe4+?
      • 1...Kxf6
        • 2.Qe5#
      • 1...Kg5!
  • Keys
    • 1.Qg3!
      • 1...Kxf6
        • 2.Qe5#
      • 1...g5
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB1(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAR1(A),XP(b)
      • Refutation
        • P(b);XR(D)
    • Try
      • Q(A);
      • Vars
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b),XP(C)::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b),XP(C)::QAB1(A)
      • P(b);SBLOCK::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).