MESON Chess Problem Database

Problem Display
PID: 176282 (4R3/5pN1/5kp1/6p1/6p1/6n1/3p3Q/3K4 w - - 0 1)

Breuer, Joseph Theodor

Schach-Echo, 1972

4R3/5pN1/5kp1/6p1/6p1/6n1/3p3Q/3K4

#2

4 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxg7
      • 2.Qh8#
    • 1...Sf1
      • 2.Qe5#
    • 1...Sh1
      • 2.Qe5#
    • 1...Se2
      • 2.Qe5#
    • 1...Se4
      • 2.Qe5#
    • 1...Sf5
      • 2.Qe5#
    • 1...Sh5
      • 2.Qe5#
  • Tries
    • 1.Sh5+?
      • 1...Kf5
        • 2.Qf2#
      • 1...Sxh5
        • 2.Qe5#
      • 1...gxh5!
  • Keys
    • 1.Sf5!
      • 1...Kxf5
        • 2.Qf2#
      • 1...Sxf5
        • 2.Qe5#
      • 1...gxf5
        • 2.Qh6#
      • 1...Sf1
        • 2.Qe5#
      • 1...Sh1
        • 2.Qe5#
      • 1...Se2
        • 2.Qe5#
      • 1...Se4
        • 2.Qe5#
      • 1...Sh5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(e);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
    • S(b);OGATE::QAB1(B)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR(B)
        • S(b);OGATE,XS(C)::QAB1(B)
      • Refutation
        • P(f);XS(C)
  • Actual
    • S(C);
    • Vars
      • K(e);OGATEB,P-FLIGHT,XS(C)::QAR(B)
      • S(b);OGATE,XS(C)::QAB1(B)
      • P(f);OGATEB,SBLOCK,XS(C)::QAR2(B)
      • S(b);OGATE::QAB1(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).