MESON Chess Problem Database

Problem Display
PID: 51359 (4B3/1p2pK2/7Q/kNp5/6Rr/1RP5/b7/2N3b1 w - - 0 1)

Driver, John Edward

Manchester Guardian, 1958

4B3/1p2pK2/7Q/kNp5/6Rr/1RP5/b7/2N3b1

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Ra3#
    • 1...Bxb3+
      • 2.Sxb3#
    • 1...c4
      • 2.Ra3#
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qb6#
      • 1...Bxb3+
        • 2.Sxb3#
      • 1...Rxh6
        • 2.Ra4#
      • 1...b5
        • 2.Qa6#
      • 1...c4
        • 2.Ra3#
      • 1...b6
        • 2.Qxb6#
      • 1...e6
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(b);N_PINR(B)::R(B)
    • B(b);CHECK,XR(B)::S(A),XB(b)
    • P(e);N_PINR(B)::R(B)
  • Actual
    • S(E);
    • Threat
      • QAB1(F)
    • Vars
      • B(b);CHECK,XR(B)::S(A),XB(b)
      • R(c);N_GUARD,XQ(F)::R1(D)
      • P(f);N_GUARD::QAR1(F)
      • P(e);N_PINR(B)::R(B)
      • P(f);::QAB1(F),XP(f)
      • P(g);N_PINR(B)::R1(B)
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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).