MESON Chess Problem Database

Problem Display
PID: 26819 (3n3R/R1q1P2K/Br2k3/4N2Q/b1P1Np1B/2n5/8/8 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2001

3n3R/R1q1P2K/Br2k3/4N2Q/b1P1Np1B/2n5/8/8

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.exd8S#
    • 1...Qc5
      • 2.exd8S#
    • 1...Qc6
      • 2.exd8S#
    • 1...Qxe7+
      • 2.Rxe7#
  • Keys
    • 1.Sg6!
      • threat
        • 2.Sf8#
      • 1...Qxe7+
        • 2.Rxe7#
      • 1...Kd7
        • 2.e8Q#
      • 1...Kf7
        • 2.exd8S#
      • 1...Sxe4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(f);N_PINP(H),XS(D)::PXS(g)=S
    • Q(f);N_PINP(H)::PXS(g)=S
    • Q(f);CHECK,OGATE,XP(H)::R1(G),XQ(f)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • Q(f);CHECK,OGATE,XP(H)::R1(G),XQ(f)
      • K(e);N_PINP(H),P_SPINQ(f),S_FLIGHT::P=Q
      • K(e);N_PINP(H),S_FLIGHT::PXS(g)=S
      • S(a);N_GUARD,XS(B)::QAB1(E)
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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).