MESON Chess Problem Database

Problem Display
PID: 30528 (7R/6kn/2p2R2/2Q5/5K2/8/8/8 w - - 0 1)

Mach, Julius Zdenek

Nove parizske mody, 1899

7R/6kn/2p2R2/2Q5/5K2/8/8/8

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Qf8#
    • 1...Sf8
      • 2.Qxf8#
  • Tries
    • 1.Kf5?
      • 1...Sxf6
        • 2.Qf8#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf8
        • 2.Qxf8#
      • 1...Kxh8!
  • Keys
    • 1.Rh6!
      • 1...Kxh6
        • 2.Qg5#
      • 1...Kf7
        • 2.Qa7#
      • 1...Kxh8
        • 2.Qf8#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf6
        • 2.Qe7#
        • 2.Qf8#
      • 1...Sf8
        • 2.Qe7#
        • 2.Qxf8#

Anticipated by 55463(0000)

This anticipates 174929(1901), 172366(1997)

There are these versions: 24886

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD::QAB1(B)
    • S(c);N_GUARD::QAB1(B),XS(c)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • S(c);N_GUARD,XR(C)::QAB1(B)
        • S(c);N_GUARD::QAB1(B)
        • S(c);N_GUARD::QAB1(B),XS(c)
      • Refutation
        • K(b);S_FLIGHT,XR(D)
  • Actual
    • R(C);
    • Vars
      • K(b);P_SPINS(c),S_FLIGHT,XR(C)::QAB1(B)
      • K(b);P-FLIGHT::QAR(B)
      • K(b);P_SPINS(c),S_FLIGHT,XR(D)::QAR2(B)
      • S(c);N_GUARD::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).