MESON Chess Problem Database

Problem Display
PID: 45487 (2R1br2/3N4/3p1B1q/1rP1p3/1ppk2N1/8/2Q1P3/1Kn4B w - - 0 1)

Cornejo, Jose Jesus

Recomm., BCF 051. Ty., 1945-1946

2R1br2/3N4/3p1B1q/1rP1p3/1ppk2N1/8/2Q1P3/1Kn4B

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qg7
      • 2.e3#
    • 1...Qh2
      • 2.e3#
    • 1...Qh4
      • 2.e3#
    • 1...Qh5
      • 2.e3#
    • 1...Qxf6
      • 2.e3#
    • 1...Qg6
      • 2.e3#
    • 1...Qh7
      • 2.e3#
    • 1...Qh8
      • 2.e3#
    • 1...c3
      • 2.Qe4#
    • 1...dxc5
      • 2.Bxe5#
    • 1...d5
      • 2.Bxe5#
  • Keys
    • 1.Sdxe5!
      • threat
        • 2.Qxc4#
      • 1...Rxc5
        • 2.Sc6#
      • 1...dxe5
        • 2.Bxe5#
      • 1...Qg6
        • 2.e3#
      • 1...Qh7
        • 2.Sf7#
        • 2.e3#
      • 1...Bg6
        • 2.Sf7#
      • 1...Bf7
        • 2.Sg6#
      • 1...c3
        • 2.Qe4#
      • 1...d5
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • Q(h);N_GUARD::P(D)
    • Q(h);N_GUARD,N_SPINP(f),XB(G)::P(D)
    • Q(h);N_GUARD,P_PINQ(C)::P(D)
    • P(c);SBLOCK::QAR1(C)
    • P(g);N_GUARD,XP(F)::B(G),XP(f)
    • P(g);N_GUARD::B(G),XP(f)
  • Actual
    • S(H);XP(f)
    • Threat
      • QAR1(C),XP(c)
    • Vars
      • R(e);SBLOCK,XP(F)::B(G)+S(H),DCHECK
      • P(g);OGATE,P_SPINP(g),XS(H)::B(G),XP(g)
      • Q(h);N_GUARD,P_PINQ(C)::P(D)
      • B(i);P_PINQ(C),S_CUTQ(h)::B(G)+S(H)
      • B(i);S_CUTR(j)::B(G)+S(H)
      • P(c);SBLOCK::QAR1(C)
      • P(g);SBLOCK::B(G)+S(H),DCHECK
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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).