MESON Chess Problem Database

Problem Display
PID: 163162 (K3R3/b7/N1B5/1p6/1r3r2/1PBk1P1N/2nPn3/6q1 w - - 0 1)

Lipton, Michael

Best Problems, 2013

K3R3/b7/N1B5/1p6/1r3r2/1PBk1P1N/2nPn3/6q1

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Scd4
      • 2.Sxb4#
    • 1...Sed4
      • 2.Sxf4#
  • Keys
    • 1.Rd8+!
      • 1...Qd4
        • 2.Sf2#
      • 1...Rbd4
        • 2.Bxb5#
      • 1...Rfd4
        • 2.Be4#
      • 1...Bd4
        • 2.Sc5#
      • 1...Scd4
        • 2.Sxb4#
      • 1...Sed4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,S_CUTR(f)::S(F),XR(e)
    • S(c);N_GUARD,S_CUTR(e)::S(E),XR(f)
  • Actual
    • R(I);CHECK
    • Vars
      • Q(a);P_SPINQ(a)::S(E)
      • R(e);P_SPINR(e)::B(G),XP(g)
      • R(f);P_SPINR(f)::B(G)
      • B(h);P_SPINB(h)::S(F)
      • S(b);P_SPINS(b)::S(F),XR(e)
      • S(c);P_SPINS(c)::S(E),XR(f)
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).