MESON Chess Problem Database

Problem Display
PID: 194777 (5R2/1QnN2pb/3Pk3/1P2Pq2/2p1N1B1/1p6/3P3b/1K6 w - - 0 1)

Gockel, Hubert

Handloser, Ralf Chris

Die Schwalbe, 2018

5R2/1QnN2pb/3Pk3/1P2Pq2/2p1N1B1/1p6/3P3b/1K6

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd7
      • 2.Qc8#
    • 1...Bxe5
      • 2.Sc5#
    • 1...Bg8
      • 2.Bxf5#
  • Tries
    • 1.d3?
      • threat
        • 2.Sec5#
      • 1...Kxd7
        • 2.Sc5#
        • 2.Qc8#
      • 1...Bxe5
        • 2.Sdc5#
      • 1...Sa6
        • 2.Sg5#
      • 1...Bg1!
  • Keys
    • 1.d4!
      • threat
        • 2.Sc5#
      • 1...Kxd7
        • 2.Qc8#
      • 1...cxd4 ep
        • 2.Sec5#
      • 1...Sa6
        • 2.d5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(e);OGATEB,P_SPINS(f),S_FLIGHT,XS(I)::QAB1(H)
    • B(a);SBLOCK,XP(F)::S(I)
    • B(h);N_GUARD::B(D),XQ(d)
  • Tries
    • Try
      • P(B);N_SPINS(C)
      • Threat
        • S(C)
      • Vars
        • B(a);SBLOCK,XP(F)::S(I)
        • S(f);::S(C)
      • Refutation
        • B(a);
  • Actual
    • P(B);
    • Threat
      • S(I)
    • Vars
      • K(e);OGATEB,P_SPINS(f),S_FLIGHT,XS(I)::QAB1(H)
      • P(c);EP,N_PINS(C),XP(B)::S(C)
      • S(f);N_GUARD::P(B)
HTML5 logo

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).