MESON Chess Problem Database

Problem Display
PID: 123426 (8/8/8/4pR2/1RqNkN2/4Pp2/5P2/n5QK w - - 0 1)

Pigits, Zigurd

Padomju Jaunatne, 1949

8/8/8/4pR2/1RqNkN2/4Pp2/5P2/n5QK

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc6?
      • threat
        • 2.Rxe5#
      • 1...Kxf5
        • 2.Qg6#
      • 1...exf4!
  • Keys
    • 1.Rh5!
      • threat
        • 2.Qg6#
      • 1...Qf1
        • 2.Sde2#
      • 1...Qa6
        • 2.Sb5#
      • 1...Qe6
        • 2.Sdxe6#
      • 1...Qf7
        • 2.Sde6#
      • 1...Qg8
        • 2.Sde6#
      • 1...Qc1
        • 2.Sc2#
      • 1...Qc6
        • 2.Sxc6#
      • 1...Qc8
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);P_PINQ(c)
      • Threat
        • R1(H),XP(e)
      • Vars
        • K(d);N_SPINQ(c),OGATEB,S_FLIGHT,XR(H)::QAB1(A)
      • Refutation
        • P(e);XS(G)
  • Actual
    • R(H);
    • Threat
      • QAB(A)
    • Vars
      • Q(c);P_PINQ(A)::R(E)+S(F)
      • Q(c);::R(E)+S(F)
      • Q(c);::R(E)+S(F),XQ(c)
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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).