MESON Chess Problem Database

Problem Display
PID: 196886 (Q7/2B2p2/6p1/8/1pK5/5N1k/1bP2PpN/r7 w - - 0 1)

Rosenblatt, Paul

Deutsches Wochenschach, 1919

Q7/2B2p2/6p1/8/1pK5/5N1k/1bP2PpN/r7

#2

7 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Qh8#
    • 1...Bf6
      • 2.Qc8#
    • 1...Bh8
      • 2.Qxh8#
    • 1...f6
      • 2.Qh8#
  • Keys
    • 1.Bg3!
      • threat
        • 2.Sg5#
      • 1...Ra5
        • 2.Sg1#
      • 1...Bc1
        • 2.Sg1#
      • 1...Bf6
        • 2.Qc8#
      • 1...g5
        • 2.Sxg5#
      • 1...f6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD,SBLOCK::QAR(G)
    • B(b);S_CUTP(g)::QAB(G)
    • B(b);N_GUARD::QAR(G),XB(b)
    • P(g);S_CUTB(b)::QAR(G)
  • Actual
    • B(F);
    • Threat
      • S(D)
    • Vars
      • R(a);N_GUARD::S(D)
      • B(b);S_CUTR(a)::S(D)
      • B(b);S_CUTP(g)::QAB(G)
      • P(f);::S(D),XP(f)
      • P(g);S_CUTB(b)::QAR(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).