MESON Chess Problem Database

Problem Display
PID: 206594 (8/5p2/5P2/3N1Q1p/5P1r/5k1p/4p2K/4B3 w - - 0 1)

Bajtay, Jozsef

Nepszava, 1925

8/5p2/5P2/3N1Q1p/5P1r/5k1p/4p2K/4B3

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf4
      • 2.Qxf4#
    • 1...Rg4
      • 2.Qd3#
  • Tries
    • 1.Kh1?
      • 1...Rxf4
        • 2.Qxf4#
      • 1...Rg4
        • 2.Qd3#
      • 1...h2!
    • 1.Qe4+?
      • 1...Kg4
        • 2.Se3#
      • 1...Kxe4!
    • 1.Qe5?
      • 1...Rxf4
        • 2.Qxf4#
      • 1...Rg4
        • 2.Qe3#
      • 1...Kg4!
  • Keys
    • 1.Sc3!
      • 1...Ke3
        • 2.Qe4#
      • 1...Rxf4
        • 2.Qxh3#
      • 1...Rg4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(d);OGATE,P_SPINR(d),XP(C)::QAR1(E),XR(d)
    • R(d);SBLOCK::QAR2(E)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • R(d);OGATE,P_SPINR(d),XP(C)::QAR1(E),XR(d)
        • R(d);SBLOCK::QAR2(E)
      • Refutation
        • P(c);
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);S_FLIGHT::S(D)
      • Refutation
        • K(b);S_FLIGHT,XQ(E)
    • Try
      • Q(E);
      • Vars
        • R(d);OGATE,XP(C)::QAR1(E),XR(d)
        • R(d);SBLOCK::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);P-FLIGHT::QAR1(E)
      • R(d);N_GUARD,P_SPINR(d),SBLOCK,XP(C)::QAR2(E),XP(c)
      • R(d);SBLOCK::QAB1(E)
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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).