MESON Chess Problem Database

Problem Display
PID: 99807 (1K6/P1p1pP2/3N4/Q1PpP2R/2Pkp1p1/3PN1q1/1n1PR2n/1B6 w - - 0 1)

Kiss, Janos

Magyar Sakkelet, 1980

1K6/P1p1pP2/3N4/Q1PpP2R/2Pkp1p1/3PN1q1/1n1PR2n/1B6

#2

14 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe3
      • 2.dxe3#
    • 1...Sxd3
      • 2.Sc2#
    • 1...exd3
      • 2.Sef5#
  • Tries
    • 1.Qxc7?
      • threat
        • 2.Sb5#
        • 2.Sdf5#
      • 1...Qxe5
        • 2.Sb5#
      • 1...exd3
        • 2.Sef5#
      • 1...Qf2
        • 2.Sb5#
      • 1...Qf4
        • 2.Sb5#
      • 1...Qf3
        • 2.Sb5#
      • 1...e6
        • 2.Sb5#
      • 1...exd6!
    • 1.f8S?
      • threat
        • 2.Se6#
      • 1...e6
        • 2.Sxe6#
      • 1...Qxe5!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Sc2#
        • 2.Sb5#
      • 1...Qxe3
        • 2.Sb5#
        • 2.dxe3#
      • 1...exd3
        • 2.Sef5#
      • 1...dxc4
        • 2.Sb5#
      • 1...cxd6
        • 2.Sc2#
      • 1...exd6
        • 2.Sc2#
      • 1...c6
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(c);OGATE,XS(E)::P(B),XQ(c)
    • S(a);SBLOCK,XP(D)::S(E)
    • P(e);XP(D)::S(E)
  • Tries
    • Try
      • Q(G);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);XP(I)::S(K)
        • P(e);XP(D)::S(E)
        • Q(c);::S(K)
        • P(i);::S(K)
      • Refutation
        • P(i);XS(K)
    • Try
      • P(M);
      • Threat
        • S(M)
      • Vars
        • P(i);::S(M),XP(i)
      • Refutation
        • Q(c);XP(I)
  • Actual
    • Q(G);
    • Threat
      • DUALS(2)
    • Vars
      • P(e);XP(D)::S(E)
      • P(g);XP(F)::S(K)
      • P(h);XS(K)::S(E)
      • P(i);XS(K)::S(E)
      • P(h);::S(E)
HTML5 logo

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).