MESON Chess Problem Database

Problem Display
PID: 141432 (8/3bp3/4R2Q/1NPkr1B1/BKp3P1/3p4/8/8 w - - 0 1)

Anonymous

Leeds Mercury Weekly Supplement, 1901

(First published on Sat Jun 22 1901)

8/3bp3/4R2Q/1NPkr1B1/BKp3P1/3p4/8/8

#2

8 + 6

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qh1#
  • Tries
    • 1.Rd6+?
      • 1...Ke4
        • 2.Qh1#
      • 1...exd6!
    • 1.Qh1+?
      • 1...Re4
        • 2.Qxe4#
      • 1...Kxe6!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kxe6
        • 2.Qg8#
      • 1...Rxg5
        • 2.Sc7#
      • 1...Rxe6
        • 2.Sc3#
      • 1...Bxe6
        • 2.Qa8#
      • 1...Re1
        • 2.Sc7#
      • 1...Re2
        • 2.Sc7#
      • 1...Re3
        • 2.Sc7#
      • 1...Re4
        • 2.Sc7#
      • 1...Rf5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINR(d),S_FLIGHT::QAB(H)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(H)
      • Refutation
        • P(f);XR(G)
    • Try
      • Q(H);CHECK
      • Vars
        • R(d);N_GUARD,P_SPINR(d)::QAB1(H),XR(d)
      • Refutation
        • K(c);S_FLIGHT,XR(G)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H),XR(d)
    • Vars
      • K(c);P_SPINR(d),S_FLIGHT::QAB(H)
      • K(c);OGATEB,S_FLIGHT,XR(G)::QAB(H)
      • R(d);XB(F)::S(D)
      • R(d);SBLOCK,XR(G)::S(D)
      • B(e);N_GUARD,SBLOCK,XR(G)::QAB(H)
      • R(d);::S(D)
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).