MESON Chess Problem Database

Problem Display
PID: 231484 (6K1/6pN/6P1/6Bk/6r1/5Q2/8/8 w - - 0 1)

Schiffert, Gyorgy

Uj Nemezdek, 1927

6K1/6pN/6P1/6Bk/6r1/5Q2/8/8

#2

5 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxg6
      • 2.Qf7#
  • Tries
    • 1.Bc1?
      • 1...Kxg6
        • 2.Qxg4#
        • 2.Qf7#
      • 1...Kh4!
    • 1.Bd2?
      • 1...Kxg6
        • 2.Qxg4#
        • 2.Qf7#
      • 1...Kh4!
    • 1.Be3?
      • 1...Kxg6
        • 2.Qxg4#
        • 2.Qf7#
      • 1...Kh4!
    • 1.Qxg4+?
      • 1...Kxg6
        • 2.Sf8#
        • 2.Bc1#
        • 2.Bd2#
        • 2.Be3#
        • 2.Bf4#
      • 1...Kxg4!
  • Keys
    • 1.Bf4!
      • 1...Kh4
        • 2.Qh1#
      • 1...Kxg6
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINR(a),OGATEB,S_FLIGHT,XP(C)::QAB1(A)
  • Tries
    • Try
      • B(B);
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • B(B);
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • B(B);
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • Q(A);CHECK,XR(a)
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
  • Actual
    • B(B);
    • Vars
      • K(b);N_SPINR(a),P-FLIGHT::QAR(A)
      • K(b);N_SPINR(a),S_FLIGHT,XP(C)::QAR2(A),XR(a)
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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).