MESON Chess Problem Database

Problem Display
PID: 267942 (7K/5R1B/5r2/2nQ4/1pN1b3/4B1p1/3Nk1r1/2R5 w - - 0 1)

Stallybrass, Don HR

The Problemist, 1955

7K/5R1B/5r2/2nQ4/1pN1b3/4B1p1/3Nk1r1/2R5

#2

8 + 7

SOLUTION

  • SOUND
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qd1#
      • 1...Kxf3
        • 2.Qh5#
      • 1...Bxd5
        • 2.Sd4#
      • 1...Rg1
        • 2.Sxg1#
      • 1...Rd6
        • 2.Re1#
      • 1...Bc2
        • 2.Sd4#
        • 2.Re1#
      • 1...Bd3
        • 2.Sd4#
        • 2.Re1#
      • 1...Sd3
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(B);
    • Threat
      • QAB1(E)
    • Vars
      • K(a);OGATEB,P_SPINB(e),P_SPINR(g),S_FLIGHT,XS(B)::QAB(E)
      • B(e);XQ(E)::S(B)
      • R(b);N_GUARD::S(B),XR(b)
      • R(g);::R1(A)
      • S(f);SBLOCK::S(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).