MESON Chess Problem Database

Problem Display
PID: 184951 (6b1/2Rp3p/N4p1K/r2k4/5B2/p3Q3/n1N1P3/3rb3 w - - 0 1)

Sparke, Arthur M

British Chess Magazine, 1917

6b1/2Rp3p/N4p1K/r2k4/5B2/p3Q3/n1N1P3/3rb3

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Rc5#
    • 1...Rc5
      • 2.Rxc5#
    • 1...Rxa6
      • 2.Rc5#
    • 1...Be6
      • 2.Qf3#
    • 1...Sc3
      • 2.Scb4#
      • 2.Sab4#
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Qe7?
      • threat
        • 2.e4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Rd4
        • 2.Se3#
      • 1...Ra4
        • 2.Rc5#
      • 1...Sc3
        • 2.Sab4#
      • 1...f5
        • 2.Qe5#
      • 1...Be6!
  • Keys
    • 1.Qe8!
      • threat
        • 2.e4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Be6
        • 2.Qa8#
      • 1...Rd4
        • 2.Se3#
      • 1...Ra4
        • 2.Rc5#
      • 1...Sc3
        • 2.Sab4#
      • 1...f5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD::R1(G)
    • R(e);N_GUARD::R1(G),XR(e)
    • R(e);N_GUARD,XS(E)::R1(G)
    • B(j);SBLOCK::QAB(C)
    • P(g);N_GUARD::QAR1(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • P(B)
      • Vars
        • R(e);N_GUARD::R1(G),XR(e)
        • R(a);SBLOCK::S(A)
        • R(e);N_GUARD::R1(G)
        • S(c);N_GUARD,S_CUTB(b)::S(E)
        • P(g);N_GUARD::QAR1(C)
      • Refutation
        • B(j);
  • Actual
    • Q(C);
    • Threat
      • P(B)
    • Vars
      • R(e);N_GUARD::R1(G),XR(e)
      • B(j);SBLOCK::QAB(C)
      • R(a);SBLOCK::S(A)
      • R(e);N_GUARD::R1(G)
      • S(c);N_GUARD,S_CUTB(b)::S(E)
      • P(g);N_GUARD::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).