MESON Chess Problem Database

Problem Display
PID: 3126 (3BKb2/p2PnPNq/Pp3k1p/1R2Np2/2P4P/7B/6Q1/8 w - - 0 1)

Warton, Thomas Joseph

Source?, 1918

3BKb2/p2PnPNq/Pp3k1p/1R2Np2/2P4P/7B/6Q1/8

#2

12 + 8

2681 All Change Here! 1919

SOLUTION

  • SOUND
  • Sets
    • 1...Qg6
      • 2.Qxg6#
    • 1...Qg8
      • 2.Qg6#
      • 2.fxg8S#
    • 1...Qxg7
      • 2.Qc6#
    • 1...Qh8
      • 2.Qg6#
    • 1...Bxg7
      • 2.Qc6#
    • 1...f4
      • 2.Sh5#
    • 1...h5
      • 2.Qg5#
  • Keys
    • 1.Sd3!
      • 1...Qxg7
        • 2.Qc6#
      • 1...Bxg7
        • 2.Qc6#
      • 1...Qg6
        • 2.Qb2#
      • 1...Qg8
        • 2.Rxf5#
        • 2.fxg8S#
      • 1...Qh8
        • 2.Rxf5#
      • 1...f4
        • 2.Sh5#
      • 1...h5
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(g);N_GUARD,P_PINP(I)::QAR1(A),XQ(g)
    • Q(g);SBLOCK,XS(J)::QAR(A)
    • Q(g);N_GUARD::QAR1(A)
    • B(h);SBLOCK,XS(J)::QAR(A)
    • P(a);::S(J)
    • P(d);N_GUARD::QAB1(A)
  • Actual
    • S(F);
    • Vars
      • Q(g);SBLOCK,XS(J)::QAR(A)
      • B(h);SBLOCK,XS(J)::QAR(A)
      • Q(g);P_PINP(I),SBLOCK::QAB(A)
      • Q(g);N_GUARD::R1(E),XP(a)
      • P(a);::S(J)
      • P(d);N_GUARD::QAB1(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).