MESON Chess Problem Database

Problem Display
PID: 209343 (8/1p5p/bN2N2K/1nBrk1P1/r3p2p/2P1Rn1B/7b/4Q2q w - - 0 1)

van der Weerd, JAM

Probleemblad, 1944

8/1p5p/bN2N2K/1nBrk1P1/r3p2p/2P1Rn1B/7b/4Q2q

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sc4#
      • 2.Rxe4#
    • 1...Ra2
      • 2.Sc4#
      • 2.Rxe4#
    • 1...Ra3
      • 2.Sc4#
      • 2.Rxe4#
    • 1...Rc4
      • 2.Sxc4#
    • 1...Ra5
      • 2.Sc4#
      • 2.Rxe4#
    • 1...Sd4
      • 2.Rxe4#
    • 1...Sd6
      • 2.Sd7#
  • Keys
    • 1.Rxe4+!
      • 1...Rxe4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(d);N_GUARD::S(G),XR(d)
    • S(g);S_CUTR(d)::R1(C),XP(e)
    • S(g);S_CUTR(h)::S(G)
  • Actual
    • R(C);CHECK,XP(e)
    • Vars
      • R(d);P_SPINR(d),XR(C)::S(G)
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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).