MESON Chess Problem Database

Problem Display
PID: 273829 (8/4Q1K1/R5p1/3p4/1p1k4/r1q3N1/3pB1n1/5R2 w - - 0 1)

Kipping, Cyril Stanley

The Problemist, 1932

8/4Q1K1/R5p1/3p4/1p1k4/r1q3N1/3pB1n1/5R2

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Rf4#
    • 1...Se3
      • 2.Rf4#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sh4
      • 2.Rf4#
    • 1...g5
      • 2.Sf5#
  • Tries
    • 1.Qe5+?
      • 1...Kc5
        • 2.Se4#
      • 1...Kxe5!
  • Keys
    • 1.Qf6+!
      • 1...Ke3
        • 2.Rf3#
      • 1...Kc5
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::R(A)
    • S(b);N_GUARD::R(A),XS(b)
    • P(h);N_GUARD::S(C)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(f);N_GUARD,P_PINQ(E),P_SPINP(g),S_FLIGHT::S(C)
      • Refutation
        • K(f);S_FLIGHT,XQ(E)
  • Actual
    • Q(E);CHECK
    • Vars
      • K(f);N_GUARD,P_PINQ(E),S_FLIGHT::R1(A)
      • K(f);N_GUARD,P_PINQ(E),S_FLIGHT::R1(D)
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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).