MESON Chess Problem Database

Problem Display
PID: 222842 (3N3r/Q2N4/8/8/4k1pP/6P1/2P5/1n4K1 w - - 0 1)

Bayer, Konrad

Wiener Hausfrauen-Zeitung, 1884

3N3r/Q2N4/8/8/4k1pP/6P1/2P5/1n4K1

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qe3+?
      • 1...Kd5
        • 2.Qd3#
      • 1...Kf5
        • 2.Qd3#
        • 2.Qe6#
      • 1...Kxe3!
    • 1.Qd4+?
      • 1...Kf3
        • 2.Qd3#
      • 1...Kf5
        • 2.Qd3#
      • 1...Kxd4!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf3
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...Kd5
        • 2.Qd3#
      • 1...Kf5
        • 2.Qd3#
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • K(b);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
        • K(b);S_FLIGHT::QAB(E)
      • Refutation
        • K(b);P-FLIGHT,XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • K(b);P-FLIGHT::QAR1(E)
      • K(b);S_FLIGHT::QAR2(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).