MESON Chess Problem Database

Problem Display
PID: 198644 (4Q3/8/8/8/4N3/1K6/4p3/4k3 w - - 0 1)

Eisele, Hans

Breisgauer Zeitung, 1921

4Q3/8/8/8/4N3/1K6/4p3/4k3

#2

3 + 2

6490 yacpdb 2019
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qa4?
      • threat
        • 2.Qa1#
      • 1...Kd1
        • 2.Qa1#
      • 1...Kf1!
    • 1.Qh5?
      • threat
        • 2.Qh1#
      • 1...Kf1
        • 2.Qh1#
      • 1...Kd1!
    • 1.Qe5?
      • threat
        • 2.Qa1#
      • 1...Kd1
        • 2.Qa1#
      • 1...Kf1!
    • 1.Qa8?
      • threat
        • 2.Qa1#
      • 1...Kd1
        • 2.Qa1#
      • 1...Kf1!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qa1#
        • 2.Qh1#
      • 1...Kd1
        • 2.Qa1#
      • 1...Kf1
        • 2.Qh1#

This anticipates 234990(2016)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • K(a);P-FLIGHT::QAR(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • K(a);P-FLIGHT::QAR(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • K(a);P-FLIGHT::QAR(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::QAR(C)
      • K(a);P-FLIGHT::QAR2(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).