MESON Chess Problem Database

Problem Display
PID: 12186 (8/8/2Q2p2/K2n3r/8/3P1k1N/2Np2R1/5B2 w - - 0 1)

Coombe-Tennant, Joseph

diagrammes, 1975

8/8/2Q2p2/K2n3r/8/3P1k1N/2Np2R1/5B2

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rh6
      • 2.Qxd5#
    • 1...Rh7
      • 2.Qxd5#
    • 1...Rh8
      • 2.Qxd5#
    • 1...f5
      • 2.Qxd5#
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qf2#
      • 1...d1S
        • 2.Se1#
      • 1...Sc3
        • 2.Qxh5#
      • 1...Se3
        • 2.Sd4#
      • 1...Sb4
        • 2.Qxh5#
      • 1...Sf4
        • 2.Sg1#
      • 1...Sb6
        • 2.Qxh5#
      • 1...Sc7
        • 2.Qxh5#
      • 1...Se7
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • R(d);N_GUARD::QAB(G),XS(c)
    • P(e);S_CUTR(d)::QAB(G),XS(c)
  • Actual
    • Q(G);N_PINS(c)
    • Threat
      • QAR1(G)
    • Vars
      • P(a);N_GUARD::S(B)
      • S(c);OGATE,P_PINQ(G)::QAB(G),XR(d)
      • S(c);P_PINQ(G),SBLOCK::S(B)
      • S(c);P_PINQ(G),SBLOCK::S(E)
HTML5 logo

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).