MESON Chess Problem Database

Problem Display
PID: 169022 (6n1/6pQ/6pn/4P3/8/1K6/3N4/k7 w - - 0 1)

Abdullayev, Suleyman

SuperProblem, 2017

6n1/6pQ/6pn/4P3/8/1K6/3N4/k7

#2

4 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Qh1#
    • 1...Sf5
      • 2.Qh1#
    • 1...Sf7
      • 2.Qh1#
    • 1...g5
      • 2.Qb1#
  • Tries
    • 1.Qxg7?
      • threat
        • 2.Qa7#
      • 1...Se7
        • 2.e6#
      • 1...Sf7!
    • 1.Qh8?
      • 1...Sg4
        • 2.Qh1#
      • 1...Sf5
        • 2.Qh1#
      • 1...Sf7
        • 2.Qh1#
      • 1...Sf6
        • 2.Qa8#
      • 1...Se7
        • 2.Qa8#
      • 1...g5!
    • 1.e6?
      • 1...Sg4
        • 2.Qh1#
      • 1...Sf5
        • 2.Qh1#
      • 1...Sf7
        • 2.Qh1#
      • 1...Se7
        • 2.Qxg7#
      • 1...g5
        • 2.Qb1#
      • 1...Sf6!
  • Keys
    • 1.Qxg6!
      • threat
        • 2.Qb1#
        • 2.Qg1#
        • 2.Qa6#
      • 1...Sg4
        • 2.Qb1#
        • 2.Qa6#
      • 1...Sf5
        • 2.Qg1#
        • 2.Qa6#
      • 1...Sf6
        • 2.Qb1#
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • S(c);OGATE::QAB1(D)
    • P(b);OGATE::QAR1(D)
  • Tries
    • Try
      • Q(D);XP(d)
      • Threat
        • QAR(D)
      • Vars
        • S(e);N_GUARD::QAB(D)+P(C)
      • Refutation
        • S(c);
    • Try
      • Q(D);
      • Vars
        • S(c);OGATE::QAB1(D)
        • S(e);OGATE::QAB(D)
      • Refutation
        • P(b);
    • Try
      • P(C);
      • Vars
        • S(c);OGATE::QAB1(D)
        • S(e);N_GUARD::QAB(D),XP(d)
        • P(b);OGATE::QAR1(D)
      • Refutation
        • S(e);
  • Actual
    • Q(D);XP(b)
    • Threat
      • DUALS(3)
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).