MESON Chess Problem Database

Problem Display
PID: 231083 (K2B4/8/8/7Q/3k4/3n4/N5B1/8 w - - 0 1)

Runtsch, Ludwig

Dresdner Anzeiger, 1927

K2B4/8/8/7Q/3k4/3n4/N5B1/8

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qd5#
  • Tries
    • 1.Bb6+?
      • 1...Kc4
        • 2.Qd5#
      • 1...Sc5!
  • Keys
    • 1.Qf3!
      • 1...Kc4
        • 2.Qd5#
      • 1...Kc5
        • 2.Qd5#
      • 1...Ke5
        • 2.Qf6#
      • 1...Sc1
        • 2.Qc3#
      • 1...Se1
        • 2.Qc3#
      • 1...Sb2
        • 2.Qc3#
      • 1...Sf2
        • 2.Qc3#
      • 1...Sb4
        • 2.Qc3#
      • 1...Sf4
        • 2.Qc3#
      • 1...Sc5
        • 2.Qc3#
      • 1...Se5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAB1(C)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT::QAB1(C)
      • K(b);S_FLIGHT::QAR1(C)
      • K(b);S_FLIGHT::QAB1(C)
      • S(a);OGATE::QAB1(C)
      • S(a);OGATE,SBLOCK::QAB1(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).