MESON Chess Problem Database

Problem Display
PID: 271258 (3R4/4p1K1/1p2kpp1/r1b5/p4PP1/2Q5/1n6/1r6 w - - 0 1)

Westbury, Eric Ernest

Reading Observer, 1902

3R4/4p1K1/1p2kpp1/r1b5/p4PP1/2Q5/1n6/1r6

#2

5 + 10

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qc6#
      • 2.Qc8#
    • 1...Bf2
      • 2.Qc6#
      • 2.Qc8#
    • 1...Ba3
      • 2.Qc8#
    • 1...Be3
      • 2.Qc6#
      • 2.Qc8#
    • 1...Bb4
      • 2.Qc8#
    • 1...Bd4
      • 2.Qc6#
      • 2.Qc8#
    • 1...Sd1
      • 2.Qc4#
    • 1...Sd3
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...f5
      • 2.Qe5#
    • 1...g5
      • 2.f5#
  • Tries
    • 1.Qb3+?
      • 1...Sc4
        • 2.Qxc4#
      • 1...axb3!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qe3#
      • 1...Bxd4
        • 2.Qc6#
      • 1...Bd6
        • 2.Qc8#
      • 1...Re1
        • 2.Qxe1#
      • 1...Ba3
        • 2.Qc8#
      • 1...Bb4
        • 2.Qc8#
      • 1...Sd1
        • 2.Qc4#
      • 1...Sd3
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(e);OGATE::QAB(A)
    • S(b);N_GUARD::QAB(A)
    • S(b);N_GUARD::QAB(A),XS(b)
    • P(h);N_GUARD::QAR1(A)
    • P(i);N_GUARD::P(B)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB(A),XS(b)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • R(E);
    • Threat
      • QAR(A)
    • Vars
      • B(e);OGATE,XR(E)::QAR2(A)
      • B(e);OGATE::QAB(A)
      • R(a);N_GUARD::QAR(A),XR(a)
      • S(b);N_GUARD::QAB(A)
      • S(b);N_GUARD::QAB(A),XS(b)
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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).