MESON Chess Problem Database

Problem Display
PID: 271480 (7n/8/3N1kpP/2KPR3/5pn1/5b2/1Q6/8 w - - 0 1)

Westbury, Eric Ernest

Yorkshire Weekly Post, 1903

7n/8/3N1kpP/2KPR3/5pn1/5b2/1Q6/8

#2

6 + 6

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Sf7
      • 2.Se8#
    • 1...g5
      • 2.Re6#
  • Tries
    • 1.Re1+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Kg5!
    • 1.Re2+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Kg5!
    • 1.Re3+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Kg5!
    • 1.Re4+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Kg5!
    • 1.Rh5+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Ke7!
    • 1.Re8+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Kg5!
    • 1.Qb7?
      • threat
        • 2.Qe7#
        • 2.Qg7#
      • 1...Kxe5
        • 2.Qb2#
        • 2.Qe7#
      • 1...Sxh6
        • 2.Qe7#
      • 1...g5
        • 2.Re6#
        • 2.Qg7#
      • 1...Sf7
        • 2.Qe7#
      • 1...Sxe5!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qxh8#
      • 1...Kxe5
        • 2.Qb2#
      • 1...Sxe5
        • 2.Qd8#
      • 1...g5
        • 2.Re6#
      • 1...Sf7
        • 2.Se8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);SBLOCK::S(E)
    • P(e);SBLOCK::QAB(A)+R(D),DCHECK
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XP(F)::QAB1(A)
        • S(f);::QAB1(A)
      • Refutation
        • S(c);XR(D)
  • Actual
    • Q(A);
    • Threat
      • QAB(A),XS(f)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(D)::QAB(A)
      • S(c);SBLOCK,XR(D)::QAB(A)
      • P(e);SBLOCK::R1(D)
      • S(f);SBLOCK::S(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).