MESON Chess Problem Database

Problem Display
PID: 61902 (k1N5/p1P5/2n5/3b4/4B2K/7p/1Q6/1nr5 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1943

k1N5/p1P5/2n5/3b4/4B2K/7p/1Q6/1nr5

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qb8#
    • 1...Bc4
      • 2.Bxc6#
      • 2.Qb8#
    • 1...Be6
      • 2.Qb8#
    • 1...Bf7
      • 2.Qb8#
    • 1...Bg8
      • 2.Qb8#
    • 1...Sd4
      • 2.Qb8#
    • 1...Sa5
      • 2.Qb8#
    • 1...Se5
      • 2.Qb8#
    • 1...Se7
      • 2.Qb8#
    • 1...Sb8
      • 2.Qxb8#
      • 2.cxb8Q#
      • 2.cxb8R#
    • 1...Sd8
      • 2.Qb8#
  • Tries
    • 1.Sb6+?
      • 1...Kb7
        • 2.c8Q#
      • 1...axb6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qb7#
      • 1...Bb3
        • 2.c8Q#
        • 2.c8R#
      • 1...Sb4
        • 2.Qh8#
      • 1...Sd4
        • 2.Qb8#
      • 1...Sa5
        • 2.Qh8#
        • 2.Qb8#
      • 1...Se5
        • 2.Qb8#
      • 1...Se7
        • 2.Qb8#
      • 1...Sb8
        • 2.Qxb8#
        • 2.cxb8Q#
        • 2.cxb8R#
      • 1...Sd8
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(d);P_SPINS(e)::QAR1(A)
    • S(e);N_GUARD,P_SPINB(d)::QAR1(A)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(g);S_FLIGHT::P=Q
      • Refutation
        • P(f);XS(E)
  • Actual
    • S(E);
    • Threat
      • QAB1(A)
    • Vars
      • B(d);P_SPINS(e)::P=Q
      • S(e);N_GUARD,P_SPINB(d)::QAB1(A)
      • S(e);N_GUARD,P_SPINB(d)::QAR1(A)
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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).