MESON Chess Problem Database

Problem Display
PID: 249389 (8/4N1Q1/8/1B1P2p1/4k3/6K1/8/8 w - - 0 1)

Schlegel, Rudolf

Deutsche Schachzeitung, 1973

8/4N1Q1/8/1B1P2p1/4k3/6K1/8/8

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kf2?
      • 1...Kf4
        • 2.Qd4#
      • 1...g4!
    • 1.Sg6?
      • threat
        • 2.Qe5#
      • 1...Kxd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Bd3#
      • 1...Ke3!
    • 1.Qf6?
      • 1...g4
        • 2.Qf4#
      • 1...Ke3!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qe5#
      • 1...Ke3
        • 2.Qd4#
      • 1...Kxd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(E)
      • Refutation
        • P(b);
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);S_FLIGHT,XP(C)::QAR1(E)
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Vars
        • P(b);N_GUARD::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAR1(E)
    • Vars
      • K(a);P-FLIGHT::QAB1(E)
      • K(a);S_FLIGHT,XP(C)::QAR1(E)
      • K(a);S_FLIGHT::B(B)
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).