MESON Chess Problem Database

Problem Display
PID: 102757 (1Q6/K2Rp3/N3P3/3P1p2/3k1N1R/3P1n2/1Pp2P2/2q4b w - - 0 1)

Schuld, Henk L

Revue d'Echecs, 1904

1Q6/K2Rp3/N3P3/3P1p2/3k1N1R/3P1n2/1Pp2P2/2q4b

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb2
      • 2.Qxb2#
    • 1...Se1
      • 2.Qh8#
    • 1...Sg1
      • 2.Qh8#
    • 1...Sd2
      • 2.Qh8#
    • 1...Sh2
      • 2.Qh8#
    • 1...Sxh4
      • 2.Qh8#
    • 1...Se5
      • 2.Qb6#
    • 1...Sg5
      • 2.Qh8#
  • Keys
    • 1.d6!
      • threat
        • 2.dxe7#
      • 1...Ke5
        • 2.Qh8#
      • 1...Qxb2
        • 2.Qxb2#
      • 1...Sxh4
        • 2.Qh8#
      • 1...exd6
        • 2.Qxd6#
      • 1...Se1
        • 2.Qh8#
      • 1...Sg1
        • 2.Qh8#
      • 1...Sd2
        • 2.Qh8#
      • 1...Sh2
        • 2.Qh8#
      • 1...Se5
        • 2.Qb6#
      • 1...Sg5
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(a);OGATE,XP(A)::QAB(K),XQ(a)
    • S(d);N_GUARD::QAB(K)
    • S(d);N_GUARD,XR(E)::QAB(K)
    • S(d);SBLOCK::QAB(K)
  • Actual
    • P(F);
    • Threat
      • R(J)+P(F),XP(g)
    • Vars
      • K(e);S_FLIGHT::QAB(K)
      • Q(a);OGATE,XP(A)::QAB(K),XQ(a)
      • S(d);N_GUARD,XR(E)::QAB(K)
      • P(g);OGATE,P_SPINP(g),XP(F)::QAR2(K),XP(g)
      • S(d);N_GUARD::QAB(K)
      • S(d);SBLOCK::QAB(K)
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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).