MESON Chess Problem Database

Problem Display
PID: 263736 (8/2pPp3/N2P2NR/RB1k2P1/8/3K4/8/8 w - - 0 1)

Drese, Gerardus Hendrikus

Tijdschrift vd NSB, 1932

8/2pPp3/N2P2NR/RB1k2P1/8/3K4/8/8

#2

9 + 3

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Se7#
  • Tries
    • 1.d8R?
      • 1...Ke6
        • 2.Bc4#
      • 1...cxd6
        • 2.Bd7#
      • 1...c5
        • 2.Sc7#
      • 1...c6
        • 2.Bc4#
      • 1...e5
        • 2.Se7#
      • 1...e6
        • 2.dxc7#
      • 1...exd6!
  • Keys
    • 1.d8Q!
      • 1...Ke6
        • 2.Bc4#
      • 1...cxd6
        • 2.Bd7#
      • 1...exd6
        • 2.Qg8#
      • 1...c5
        • 2.Sc7#
      • 1...c6
        • 2.Bc4#
      • 1...e5
        • 2.Se7#
      • 1...e6
        • 2.dxc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::S(G)
  • Tries
    • Try
      • P(I);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(C)
        • P(b);N_GUARD,P_SPINP(b),SBLOCK,XP(F)::R(B)+B(C)
        • P(b);SBLOCK::S(E)
        • P(b);SBLOCK::R(B)+B(C),DCHECK
        • P(c);SBLOCK::S(G)
        • P(c);SBLOCK::R(I)+P(F),XP(b)
      • Refutation
        • P(c);P_SPINP(c),XP(F)
  • Actual
    • P(I);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(C)
      • P(b);N_GUARD,P_SPINP(b),SBLOCK,XP(F)::R(B)+B(C)
      • P(c);N_GUARD,P_SPINP(c),SBLOCK,XP(F)::QAB(I)
      • P(b);SBLOCK::S(E)
      • P(b);SBLOCK::R(B)+B(C),DCHECK
      • P(c);SBLOCK::S(G)
      • P(c);SBLOCK::QAR(I)+P(F),XP(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).