MESON Chess Problem Database

Problem Display
PID: 140072 (1B1bN3/8/kn2Rq1R/N1Ppp3/1K2n3/7B/8/8 w - - 0 1)

Kipping, Cyril Stanley

Thomas, WG

The Problemist, 1938

1B1bN3/8/kn2Rq1R/N1Ppp3/1K2n3/7B/8/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qh4
      • 2.Bf1#
    • 1...Qg5
      • 2.Bf1#
    • 1...Qe7
      • 2.Bf1#
    • 1...Qg7
      • 2.Bf1#
    • 1...Qh8
      • 2.Bf1#
    • 1...Qf1
      • 2.Bxf1#
    • 1...Qg6
      • 2.Bf1#
    • 1...Qxh6
      • 2.Bf1#
    • 1...Bc7
      • 2.Sxc7#
    • 1...Be7
      • 2.Sc7#
  • Tries
    • 1.Rxb6+?
      • 1...Bxb6
        • 2.Bc8#
      • 1...Qxb6+!
    • 1.Rh7?
      • threat
        • 2.Ra7#
      • 1...Qe7
        • 2.Bf1#
      • 1...Qg7
        • 2.Bf1#
      • 1...Bc7
        • 2.Sxc7#
      • 1...Be7
        • 2.Sc7#
      • 1...Qf7!
  • Keys
    • 1.Re7!
      • threat
        • 2.Ra7#
      • 1...Qxe7
        • 2.Bf1#
      • 1...Bxe7
        • 2.Sc7#
      • 1...Qg7
        • 2.Bf1#
        • 2.Bc8#
      • 1...Qf7
        • 2.Bc8#
      • 1...Bc7
        • 2.Sxc7#
      • 1...Sd7
        • 2.Bf1#
      • 1...Sc8
        • 2.Bf1#
        • 2.Bxc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(f);N_GUARD::B(A)
    • Q(f);N_GUARD,P_PINP(D)::B(A)
    • Q(f);N_GUARD::B(A),XQ(f)
    • Q(f);N_GUARD,XR(F)::B(A)
    • B(g);N_GUARD::S(H),XB(g)
    • B(g);N_GUARD,P_PINP(D)::S(H)
  • Tries
    • Try
      • R(E);CHECK,XS(e)
      • Vars
        • B(g);XR(E)::B(A)
      • Refutation
        • Q(f);CHECK,P_SPINQ(f),XR(E)
    • Try
      • R(F);
      • Threat
        • R1(F)
      • Vars
        • Q(f);N_GUARD,P_PINP(D)::B(A)
        • Q(f);N_GUARD::B(A)
        • B(g);N_GUARD::S(H),XB(g)
        • B(g);N_GUARD,P_PINP(D)::S(H)
      • Refutation
        • Q(f);
  • Actual
    • R(E);N_PINS(e)
    • Threat
      • R1(E)
    • Vars
      • Q(f);N_GUARD,P_PINP(D),P_SPINS(e),XR(E)::B(A)
      • B(g);N_GUARD,P_PINP(D),XR(E)::S(H)
      • Q(f);P_SPINS(e)::B(A)
      • B(g);N_GUARD::S(H),XB(g)
      • S(e);N_GUARD,P_SPINQ(f)::B(A)
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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).