MESON Chess Problem Database

Problem Display
PID: 132964 (3BRR2/K1Q2qpp/6br/2pp1k1r/n2P4/2P3p1/1p1P2P1/3B4 w - - 0 1)

Rittirsch, Manfred

18th Place, 03. WCCT, 1984-1988

3BRR2/K1Q2qpp/6br/2pp1k1r/n2P4/2P3p1/1p1P2P1/3B4

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Qe5#
    • 1...Qxf8
      • 2.Qe5#
  • Tries
    • 1.Be7?
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Bc2#
      • 1...Ke6
        • 2.Qc8#
      • 1...cxd4!
  • Keys
    • 1.Re7!
      • threat
        • 2.Qe5#
      • 1...Kg5
        • 2.Rexf7#
      • 1...Kf6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(j);N_PINQ(G)::QAR1(G)
    • Q(j);N_PINQ(G),N_SPINQ(j),XR(J)::QAR1(G)
  • Tries
    • Try
      • B(H);N_SPINQ(G)
      • Threat
        • QAR1(G)
      • Vars
        • K(f);N_SPINQ(j),S_FLIGHT::B(A)
        • K(f);N_SPINQ(j),S_FLIGHT::QAB(G)
      • Refutation
        • P(d);XP(E)
  • Actual
    • R(I);N_SPINQ(G)
    • Threat
      • QAR1(G)
    • Vars
      • K(f);N_SPINQ(j),P-FLIGHT::B(H)+R(I),XQ(j)
      • K(f);P-FLIGHT::B(H)+R(I)
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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).