MESON Chess Problem Database

Problem Display
PID: 204596 (8/6Q1/6p1/6pk/8/8/4K1N1/8 w - - 0 1)

Bar, Wolfgang

Augsburger Allgemeine Zeitung, 2011

8/6Q1/6p1/6pk/8/8/4K1N1/8

#2

3 + 3

15148 Sadier Collection 2020
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qh3#
      • 1...Kg4
        • 2.Qf3#
      • 1...Kh6
        • 2.Qh8#
      • 1...g4!
    • 1.Qd4?
      • 1...Kh6
        • 2.Qh8#
      • 1...g4!
    • 1.Qe5?
      • 1...Kh6
        • 2.Qh8#
      • 1...Kg4!
    • 1.Qf8?
      • 1...Kg4
        • 2.Qf3#
      • 1...g4!
  • Keys
    • 1.Qf6!
      • 1...Kg4
        • 2.Qf3#
      • 1...Kh6
        • 2.Qh8#
      • 1...g4
        • 2.Qh4#

Anticipated by 159940(1996)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • K(b);P-FLIGHT::QAR2(C)
      • Refutation
        • P(a);
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(C)
      • Refutation
        • P(a);
    • Try
      • Q(C);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • P(a);
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::QAB1(C)
      • K(b);P-FLIGHT,P_SPINP(c)::QAR2(C)
      • P(a);OGATE::QAR1(C)
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).