MESON Chess Problem Database

Problem Display
PID: 43504 (kB6/p7/8/N6R/8/2P3r1/6RP/5nKB w - - 0 1)

Kipping, Cyril Stanley

Pittsburgh Gazette-Times, 1912

kB6/p7/8/N6R/8/2P3r1/6RP/5nKB

#2

8 + 4

4792 300 Chess Problems 1916
20 De Problemist 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Rg8
      • 2.Rxg8#
  • Tries
    • 1.Bxg3?
      • threat
        • 2.Ra2#
        • 2.Rb2#
        • 2.Rc2#
        • 2.Rd2#
        • 2.Re2#
        • 2.Rf2#
        • 2.Rh8#
      • 1...Sxh2
        • 2.Rgxh2#
        • 2.Rh8#
      • 1...Sxg3
        • 2.Rh8#
      • 1...Sd2
        • 2.Rxd2#
        • 2.Rh8#
      • 1...Se3
        • 2.Rh8#
      • 1...a6!
  • Keys
    • 1.Rh8!
      • threat
        • 2.Bxg3#
        • 2.Rxg3#
      • 1...Rxg2+
        • 2.Bxg2#
      • 1...Rxc3
        • 2.Bc7#
      • 1...Sxh2
        • 2.Bxg3#
      • 1...Rg8
        • 2.Rgxg8#
      • 1...Rd3
        • 2.Bd6#
      • 1...Re3
        • 2.Be5#
      • 1...Rf3
        • 2.Bf4#
      • 1...Rh3
        • 2.Rg3#
      • 1...Rg4
        • 2.Rxg4#
      • 1...Rg5
        • 2.Rxg5#
      • 1...Rg6
        • 2.Rxg6#
      • 1...Rg7
        • 2.Rxg7#
      • 1...Sd2
        • 2.Bxg3#
      • 1...Se3
        • 2.Bxg3#
      • 1...a6
        • 2.Rxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • R(b);::B(B)+R(C),XR(b)
  • Tries
    • Try
      • B(H);N_SPINR(C),XR(b)
      • Threat
        • DUALS(7)
      • Vars
        • S(a);XB(H)::R(G)
        • S(a);::R(G)
      • Refutation
        • P(c);
  • Actual
    • R(G);
    • Threat
      • DUALS(2)
    • Vars
      • R(b);CHECK,OGATE,P_SPINR(b),XR(C)::B(B),XR(b)
      • R(b);N_GUARD,N_PINR(C),XP(E)::R(G)+B(H)
      • S(a);XP(D)::R(G)+B(H),XR(b)
      • R(b);::B(B)+R(C),XR(b)
      • R(b);N_GUARD,N_PINR(C)::R(G)+B(H)
      • R(b);N_PINR(C)::B(B)+R(C)
      • S(a);::R(G)+B(H),XR(b)
      • P(c);::B(B)+R(C),XR(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).