MESON Chess Problem Database

Problem Display
PID: 225150 (1K6/2pN1B2/1pkP3R/1np1B3/2n5/1Q6/8/3r4 w - - 0 1)

Wirtanen, Erkki Aukusti

Suomen Shakki, 1933

1K6/2pN1B2/1pkP3R/1np1B3/2n5/1Q6/8/3r4

#2

7 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe5
      • 2.Sxe5#
  • Keys
    • 1.Be8!
      • threat
        • 2.Sf6#
      • 1...Kd5
        • 2.Qf3#
      • 1...Rxd6
        • 2.Qf3#
      • 1...Sxe5
        • 2.Sxe5#
      • 1...Scxd6
        • 2.Sf8#
      • 1...Sbxd6
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(b);XB(B)::S(E),XS(b)
  • Actual
    • B(F);
    • Threat
      • B(F)+S(E)
    • Vars
      • K(f);P_SPINS(b),S_FLIGHT::QAB(A)
      • R(a);N_GUARD,P_SPINR(a),XP(C)::QAB(A)
      • S(b);XB(B)::B(F)+S(E),DCHECK,XS(b)
      • S(b);P_SPINS(b),XP(C)::B(F)+S(E)
      • S(c);P_SPINS(c),XP(C)::B(F)+S(E),XP(e)
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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).