MESON Chess Problem Database

Problem Display
PID: 133016 (3N1Bb1/3N4/3P3Q/3k1r1p/nPrb1p1p/1Pp2K1P/6B1/8 w - - 0 1)

Massingham, HW

The Field, 1960

(First published on Thu Jan 21 1960)

3N1Bb1/3N4/3P3Q/3k1r1p/nPrb1p1p/1Pp2K1P/6B1/8

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sf6#
    • 1...Rf7
      • 2.Qe6#
    • 1...Be6
      • 2.Qxe6#
    • 1...Bh7
      • 2.Qe6#
  • Keys
    • 1.Qxf4!
      • threat
        • 2.Ke2#
      • 1...Rxf4+
        • 2.Kxf4#
      • 1...Re5
        • 2.Sf6#
      • 1...Rg5
        • 2.Qe4#
      • 1...Bg1
        • 2.bxc4#
      • 1...Bf2
        • 2.bxc4#
      • 1...Be3
        • 2.bxc4#
      • 1...Bc5
        • 2.bxc4#
      • 1...Be5
        • 2.bxc4#
      • 1...Bb6
        • 2.bxc4#
      • 1...Bf6
        • 2.bxc4#
      • 1...Ba7
        • 2.bxc4#
      • 1...Bg7
        • 2.bxc4#
      • 1...Bh8
        • 2.bxc4#
      • 1...Sc5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 3
  • Sets
    • R(h);N_GUARD,SBLOCK,S_CUTB(d)::S(H)
    • R(h);S_CUTB(j)::QAB1(G)
    • B(j);N_GUARD::QAB1(G),XB(j)
    • B(j);N_GUARD::QAB1(G)
  • Actual
    • Q(G);P_SPINQ(G),XP(e)
    • Threat
      • B(A)+K(C)
    • Vars
      • R(h);CHECK,XQ(G)::B(A)+K(C),XR(h)
      • R(h);N_GUARD,N_PINQ(G),S_CUTB(d)::S(H)
      • R(h);N_PINQ(G)::QAB1(G)
      • B(d);::P(B),XR(c)
      • S(b);N_GUARD,S_CUTB(d)::S(H)
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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).