MESON Chess Problem Database

Problem Display
PID: 142971 (3KR3/8/7R/2p1P1p1/3NnkP1/5P2/2rr3P/Q1BB1N2 w - - 0 1)

Cornejo, Jose Jesus

Recomm., BCF 060. Ty., 1948-1949

3KR3/8/7R/2p1P1p1/3NnkP1/5P2/2rr3P/Q1BB1N2

#2

12 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Rf6#
    • 1...Sc3
      • 2.Rf6#
    • 1...Sg3
      • 2.hxg3#
    • 1...Sd6
      • 2.Se6#
    • 1...Sf6
      • 2.Rxf6#
  • Tries
    • 1.Bxd2+?
      • 1...Sxd2
        • 2.Se6#
        • 2.Rf6#
      • 1...Rxd2!
    • 1.Rf8+?
      • 1...Kxe5
        • 2.Rf5#
      • 1...Sf6!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qxe4#
      • 1...Sf2
        • 2.Rf6#
      • 1...Sc3
        • 2.Rf6#
      • 1...Sg3
        • 2.hxg3#
      • 1...Sd6
        • 2.Se2#
      • 1...Sf6
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::R(J)
    • S(c);OGATE::P(E),XS(c)
    • S(c);N_PINS(G)::S(G)
    • S(c);N_GUARD::R(J),XS(c)
  • Tries
    • Try
      • B(B);CHECK,N_SPINS(G),XR(b)
      • Refutation
        • R(a);P_PINS(G),XB(B)
    • Try
      • R(L);CHECK
      • Vars
        • K(d);N_SPINR(b),S_FLIGHT,XP(I)::R1(L)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XS(c)
    • Vars
      • S(c);N_GUARD::R(J)
      • S(c);OGATE::P(E),XS(c)
      • S(c);N_PINS(G)::S(G)
      • S(c);N_GUARD::R(J),XS(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).