MESON Chess Problem Database

Problem Display
PID: 77327 (7B/4nQ1K/2q3p1/2bR3b/r3kN2/r7/4P3/5Nn1 w - - 0 1)

Hicks, GJ

The Tablet, 1950

(First published on Sat May 20 1950)

7B/4nQ1K/2q3p1/2bR3b/r3kN2/r7/4P3/5Nn1

#2

7 + 9

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Sd2#
    • 1...Rd4
      • 2.Re5#
    • 1...Be3
      • 2.Sg3#
    • 1...Bb4
      • 2.Rd4#
  • Tries
    • 1.Sg3+?
      • 1...Ke3
        • 2.Sg2#
      • 1...Rxg3!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Sd2#
      • 1...Qxd5
        • 2.Qf4#
      • 1...Qe6
        • 2.Qxe6#
      • 1...Ra2
        • 2.Sg3#
      • 1...Rd3
        • 2.exd3#
      • 1...Rd4
        • 2.Re5#
      • 1...Be3
        • 2.Sg3#
      • 1...Bb4
        • 2.Rd4#
      • 1...Sf3
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(b);SBLOCK::S(A)
    • R(c);SBLOCK::R1(D)
    • B(e);SBLOCK,S_CUTR(b)::S(A)
    • B(e);N_GUARD,S_CUTR(c)::R1(D)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(d);P-FLIGHT::S(C)
      • Refutation
        • R(b);XS(A)
  • Actual
    • S(C);
    • Threat
      • S(A)
    • Vars
      • Q(g);SBLOCK,XR(D)::QAR1(E)
      • Q(g);N_GUARD::QAR2(E),XQ(g)
      • R(b);N_GUARD::S(A)
      • R(b);OGATE::P(B),XR(b)
      • R(c);SBLOCK::R1(D)
      • B(e);S_CUTR(b)::S(A)
      • B(e);N_GUARD,S_CUTR(c)::R1(D)
      • S(a);S_CUTR(b)::S(A)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).