MESON Chess Problem Database

Problem Display
PID: 206724 (8/8/2K5/2P5/1k6/5p2/5P2/2QB4 w - - 0 1)

Schonberger, Tibor

Magyar Sakkvilag, 1925

8/8/2K5/2P5/1k6/5p2/5P2/2QB4

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qa3#
  • Tries
    • 1.Bb3?
      • 1...Ka5
        • 2.Qa3#
      • 1...Kxb3!
    • 1.Qb2+?
      • 1...Ka5
        • 2.Qa3#
        • 2.Qb5#
        • 2.Qb6#
      • 1...Kc4!
    • 1.Qe3?
      • 1...Ka5
        • 2.Qa3#
      • 1...Kc4!
    • 1.Qc4+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa4#
      • 1...Kxc4!
  • Keys
    • 1.Qc2!
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka5
        • 2.Qa4#

FEATURES

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