MESON Chess Problem Database

Problem Display
PID: 197927 (8/1p2KpN1/p7/2k1N1R1/1R6/1BPP3r/8/6b1 w - - 0 1)

Wester, Anders Emil

Stella Polaris, 1966

8/1p2KpN1/p7/2k1N1R1/1R6/1BPP3r/8/6b1

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.d4#
    • 1...Bh2
      • 2.d4#
    • 1...f5
      • 2.Se6#
    • 1...f6
      • 2.Se6#
  • Keys
    • 1.Rg6!
      • threat
        • 2.Sd7#
      • 1...Rxd3
        • 2.Sxd3#
      • 1...fxg6
        • 2.Se6#
      • 1...Re3
        • 2.d4#
      • 1...f6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(b);P_PINS(E),S_CUTB(a)::P(C)
    • B(a);N_GUARD::P(C)
    • P(f);N_GUARD::S(H)
  • Actual
    • R(F);
    • Threat
      • S(E)
    • Vars
      • R(b);XP(C)::S(E),XR(b)
      • P(f);N_GUARD,XR(F)::S(H)
      • R(b);P_PINS(E),S_CUTB(a)::P(C)
      • P(f);N_GUARD::S(H)
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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).