MESON Chess Problem Database

Problem Display
PID: 51165 (R3K1k1/2pQp3/1p3pPP/3n4/5p2/b3p2b/8/2rr4 w - - 0 1)

Eaton, Vincent Lanius

Manchester Guardian, 1952

R3K1k1/2pQp3/1p3pPP/3n4/5p2/b3p2b/8/2rr4

#2

5 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Kh8
      • 2.Kf7#
    • 1...Bxd7+
      • 2.Kxd7#
    • 1...Sb4
      • 2.Kxe7#
    • 1...e5
      • 2.Qg7#
      • 2.Qh7#
    • 1...e6
      • 2.Qg7#
      • 2.Qh7#
  • Tries
    • 1.Qe6+?
      • 1...Kh8
        • 2.Kd7#
        • 2.Kf7#
      • 1...Bxe6!
    • 1.h7+?
      • 1...Kh8
        • 2.Kf7#
      • 1...Kg7!
  • Keys
    • 1.Kd8!
      • threat
        • 2.Qe8#
      • 1...Kf8
        • 2.Qe8#
      • 1...Kh8
        • 2.Qe8#
      • 1...Bxd7
        • 2.Kxd7#
      • 1...Sc3
        • 2.Kxc7#
      • 1...Sb4
        • 2.Kxe7#
      • 1...e5
        • 2.Qg7#
      • 1...e6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(l);P-FLIGHT::R(D)+K(E)
    • B(e);CHECK,XQ(C)::R(D)+K(E),XB(e)
    • S(g);::R(D)+K(E),XP(k)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • B(e);XQ(C)
    • Try
      • P(B);CHECK
      • Vars
        • K(l);P-FLIGHT::R(D)+K(E)
      • Refutation
        • K(l);P-FLIGHT,P_SPINP(k)
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • QAR2(C)
    • Vars
      • K(l);P-FLIGHT::QAR1(C)
      • K(l);P-FLIGHT::QAR(C)
      • B(e);XQ(C)::R(D)+K(E),XB(e)
      • S(g);P_PINQ(C)::R(D)+K(E),XP(j)
      • S(g);P_PINQ(C)::R(D)+K(E),XP(k)
      • P(k);OGATE::QAR1(C)
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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).