MESON Chess Problem Database

Problem Display
PID: 71153 (1BbK1R1b/4p3/N1B1k3/5p2/4n3/1ppp1N2/3qn3/4R3 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1951

1BbK1R1b/4p3/N1B1k3/5p2/4n3/1ppp1N2/3qn3/4R3

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Sc5#
    • 1...Sg1
      • 2.Sc5#
    • 1...S2g3
      • 2.Sc5#
    • 1...Sd4
      • 2.Sc5#
    • 1...Sf4
      • 2.Sg5#
      • 2.Sc5#
    • 1...Sf2
      • 2.Sc5#
    • 1...S4g3
      • 2.Sc5#
    • 1...Sc5
      • 2.Sxc5#
    • 1...Sg5
      • 2.Sc5#
    • 1...Sd6
      • 2.Sc5#
      • 2.Sc7#
    • 1...Sf6
      • 2.Sd4#
      • 2.Sc5#
  • Tries
    • 1.Sd4+?
      • 1...Sxd4
        • 2.Sc5#
      • 1...Bxd4!
    • 1.Sg5+?
      • 1...Sxg5
        • 2.Sc5#
      • 1...Qxg5!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Bd5#
      • 1...Bb7
        • 2.Bd7#
      • 1...Sf4
        • 2.Sg5#
      • 1...Sf6
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • S(b);P_SPINS(f)::S(C)
    • S(f);N_GUARD,P_SPINS(b)::S(C)
    • S(f);N_GUARD,P_SPINS(b)::S(C),XS(f)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • S(b);P_SPINS(f),XS(B)::S(C)
      • Refutation
        • B(k);XS(B)
    • Try
      • S(B);CHECK
      • Vars
        • S(f);P_SPINS(b),XS(B)::S(C)
      • Refutation
        • Q(a);XS(B)
  • Actual
    • S(C);
    • Threat
      • B(D)
    • Vars
      • B(j);N_GUARD::B(D)
      • S(b);P_SPINS(f),S_CUTQ(a)::S(B)
      • S(f);P_SPINS(b),S_CUTB(k)::S(B)
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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).