MESON Chess Problem Database

Problem Display
PID: 243420 (1q6/8/8/3p4/3P4/2Pk1B2/2RN4/N3RK2 w - - 0 1)

Beale, John Lindsay

Chess World (The), 1947

1q6/8/8/3p4/3P4/2Pk1B2/2RN4/N3RK2

#2

8 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Sc4!
      • 1...Kxc4
        • 2.Be2#
      • 1...dxc4
        • 2.Be4#
      • 1...Qh2
        • 2.Sb2#
      • 1...Qg3
        • 2.Sb2#
      • 1...Qf4
        • 2.Sb2#
      • 1...Qe5
        • 2.Sb2#
        • 2.Sxe5#
      • 1...Qd6
        • 2.Sb2#
      • 1...Qa7
        • 2.Sb2#
        • 2.Se5#
      • 1...Qc7
        • 2.Sb2#
      • 1...Qb1
        • 2.Se5#
      • 1...Qb2
        • 2.Sxb2#
        • 2.Se5#
      • 1...Qb3
        • 2.Se5#
      • 1...Qb4
        • 2.Se5#
      • 1...Qb5
        • 2.Se5#
      • 1...Qb6
        • 2.Se5#
      • 1...Qb7
        • 2.Se5#
      • 1...Qa8
        • 2.Sb2#
        • 2.Se5#
      • 1...Qc8
        • 2.Sb2#
        • 2.Se5#
      • 1...Qd8
        • 2.Sb2#
        • 2.Se5#
      • 1...Qe8
        • 2.Sb2#
      • 1...Qf8
        • 2.Sb2#
        • 2.Se5#
      • 1...Qg8
        • 2.Sb2#
        • 2.Se5#
      • 1...Qh8
        • 2.Sb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(E);
    • Vars
      • K(a);S_FLIGHT,XS(E)::B(G)
      • P(b);N_GUARD,SBLOCK,XS(E)::B(G)
      • Q(c);N_GUARD::S(E)
      • Q(c);N_GUARD,P_PINB(G)::S(E)
      • Q(c);N_GUARD,P_PINR(B)::S(E)
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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).