MESON Chess Problem Database

Problem Display
PID: 261623 (6Q1/1N2p3/4p3/1K1pkp2/3RpR2/8/3P4/4N3 w - - 0 1)

Wuthrich, Rudolf

Schweizerische Schachzeitung, 1982

6Q1/1N2p3/4p3/1K1pkp2/3RpR2/8/3P4/4N3

#2

7 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Qg7#
      • 2.Qh8#
  • Tries
    • 1.Qg3?
      • 1...Kxd4
        • 2.Qc3#
      • 1...e3
        • 2.Qg7#
      • 1...Kf6!
    • 1.Qg5?
      • 1...e3
        • 2.Sd3#
        • 2.Sf3#
        • 2.Qg7#
      • 1...Kxd4!
  • Keys
    • 1.Sc5!
      • 1...Kxd4
        • 2.Sf3#
      • 1...Kxf4
        • 2.Scd3#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kf6
        • 2.Sd7#
      • 1...e3
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Vars
        • K(c);OGATEB,P_SPINP(a),S_FLIGHT,XR(C)::QAB1(G)
        • P(a);::QAB(G)
      • Refutation
        • K(c);P_SPINP(d),S_FLIGHT
    • Try
      • Q(G);P_PINP(d)
      • Refutation
        • K(c);N_SPINP(d),P_SPINP(a),S_FLIGHT,XR(C)
  • Actual
    • S(F);
    • Vars
      • K(c);N_GUARD,P_SPINP(a),S_FLIGHT,XR(C)::S(A)
      • K(c);N_GUARD,P_SPINP(a),S_FLIGHT,XR(D)::S(F)
      • K(c);N_GUARD,P_SPINP(b),S_FLIGHT::QAB(G)
      • K(c);N_GUARD,P_SPINP(d),S_FLIGHT::S(F)
      • P(a);::QAR1(G),XP(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).