MESON Chess Problem Database

Problem Display
PID: 261549 (8/5p2/2P2p2/2N1kN2/8/1R4K1/Q1R5/1B6 w - - 0 1)

Vollenweider, Odette (aka Baumgartner, Gabriel)

Neue Zurcher Zeitung, 1957

8/5p2/2P2p2/2N1kN2/8/1R4K1/Q1R5/1B6

#2

8 + 3

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sa4?
      • 1...Ke4
        • 2.Rc5#
      • 1...Kd5
        • 2.Re3#
      • 1...Ke6
        • 2.Rb5#
      • 1...Kxf5!
    • 1.Sa6?
      • 1...Ke4
        • 2.Rc5#
      • 1...Kd5
        • 2.Re3#
      • 1...Ke6
        • 2.Rb5#
      • 1...Kxf5!
    • 1.Sb7?
      • 1...Ke4
        • 2.Rc5#
      • 1...Kd5
        • 2.Re3#
      • 1...Ke6
        • 2.Rb5#
      • 1...Kxf5!
    • 1.Sd7+?
      • 1...Ke4
        • 2.Rd2#
        • 2.Rc5#
      • 1...Kd5
        • 2.Re3#
        • 2.Rb4#
      • 1...Ke6
        • 2.Rf3#
        • 2.Rb5#
      • 1...Kxf5!
    • 1.Qa4?
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Qe4#
      • 1...Kxf5!
  • Keys
    • 1.Se6!
      • 1...Ke4
        • 2.Rc5#
      • 1...Kd5
        • 2.Re3#
      • 1...Kxf5
        • 2.Re2#
      • 1...Kxe6
        • 2.Rb5#
      • 1...fxe6
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::B(A)+R(C)
        • K(a);N_GUARD,P-FLIGHT::QAB(B)+R(D)
      • Refutation
        • K(a);P-FLIGHT,XS(G)
    • Try
      • S(F);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::B(A)+R(C)
        • K(a);N_GUARD,P-FLIGHT::QAB(B)+R(D)
      • Refutation
        • K(a);P-FLIGHT,XS(G)
    • Try
      • S(F);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::B(A)+R(C)
        • K(a);N_GUARD,P-FLIGHT::QAB(B)+R(D)
      • Refutation
        • K(a);P-FLIGHT,XS(G)
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);P-FLIGHT,XS(G)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XS(G)
  • Actual
    • S(F);
    • Vars
      • K(a);N_GUARD,P-FLIGHT::B(A)+R(C)
      • K(a);N_GUARD,P-FLIGHT::QAB(B)+R(D)
      • K(a);N_GUARD,P-FLIGHT,XS(G)::B(A)+R(C)
      • K(a);N_GUARD,P-FLIGHT,XS(F)::QAB(B)+R(D)
      • P(c);SBLOCK,XS(F)::R(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).