MESON Chess Problem Database

Problem Display
PID: 254635 (1K2R1BB/2Pp4/p1bp2PQ/4nk2/Rn4p1/b2p2q1/2N1P3/8 w - - 0 1)

Eerkes, Allard Pieter

Probleemblad, 1946

1K2R1BB/2Pp4/p1bp2PQ/4nk2/Rn4p1/b2p2q1/2N1P3/8

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sd4#
    • 1...Sa2
      • 2.Qh5#
    • 1...Sxc2
      • 2.Qh5#
    • 1...Sd5
      • 2.Qh5#
      • 2.e4#
    • 1...Sf3
      • 2.Se3#
    • 1...Sc4
      • 2.Sd4#
    • 1...Sxg6
      • 2.Sd4#
    • 1...Sf7
      • 2.Sd4#
  • Tries
    • 1.e4+?
      • 1...Bxe4
        • 2.Sd4#
      • 1...Kxe4!
  • Keys
    • 1.c8S!
      • threat
        • 2.Sxd6#
      • 1...Ke4
        • 2.Sxd6#
      • 1...Sxc2
        • 2.Se7#
        • 2.Qh5#
      • 1...Sxg6
        • 2.Sd4#
      • 1...Sa2
        • 2.Se7#
        • 2.Qh5#
      • 1...Sd5
        • 2.Qh5#
        • 2.e4#
      • 1...Sf3
        • 2.Se3#
      • 1...Sc4
        • 2.Sd4#
      • 1...Sf7
        • 2.Sd4#
      • 1...d5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(i);SBLOCK::S(A)
    • S(d);::QAR2(E)
    • S(d);XS(A)::QAR2(E)
    • S(f);S_CUTQ(c)::S(A)
    • S(f);::S(A)
    • S(f);XP(D)::S(A)
  • Tries
    • Try
      • P(B);CHECK
      • Vars
        • B(i);SBLOCK,XP(B)::S(A)
      • Refutation
        • K(g);P_SPINS(d),S_FLIGHT,XP(B)
  • Actual
    • P(F);
    • Threat
      • S(F),XP(j)
    • Vars
      • K(g);P_SPINS(d),S_FLIGHT::S(F),XP(j)
      • S(f);XP(D)::S(A)
      • S(f);S_CUTQ(c)::S(A)
      • S(f);::S(A)
      • P(j);::S(F)
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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).