MESON Chess Problem Database

Problem Display
PID: 129746 (8/4N3/5P2/2r1P3/4pk1P/1QP1N1p1/2P3P1/4K3 w - - 0 1)

Petersen, H

Bohemia, 1909

8/4N3/5P2/2r1P3/4pk1P/1QP1N1p1/2P3P1/4K3

#2

10 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Qb6!
      • 1...Kxe3
        • 2.Sd5#
      • 1...Kxe5
        • 2.Sg6#
      • 1...Rxc3
        • 2.Sg6#
      • 1...Rxe5
        • 2.Sg6#
      • 1...Rc4
        • 2.Sg6#
      • 1...Ra5
        • 2.Sg6#
      • 1...Rb5
        • 2.Sg6#
      • 1...Rd5
        • 2.Sg6#
      • 1...Rc6
        • 2.Sg6#
      • 1...Rc7
        • 2.Sg6#
      • 1...Rc8
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);
    • Vars
      • K(c);P_SPINR(d),S_FLIGHT,XS(F)::S(J)
      • K(c);S_FLIGHT,XP(H)::S(J)
      • R(d);XP(E)::S(J)
      • R(d);XP(H)::S(J)
      • R(d);::S(J)
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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).