MESON Chess Problem Database

Problem Display
PID: 30137 (8/Bp5p/1R4B1/8/7p/7Q/p4p2/K5k1 w - - 0 1)

von Holzhausen, Walther Freiherr

Giessen Solving Ty., 1920

8/Bp5p/1R4B1/8/7p/7Q/p4p2/K5k1

#2

5 + 6

3360 Simple Two-move Themes 1924
797 Bulletin de la FFE 1928

SOLUTION

  • SOUND
  • Sets
    • 1...f1B
      • 2.Rxb7#
    • 1...hxg6
      • 2.Rxg6#
  • Tries
    • 1.Qf1+?
      • 1...Kh2
        • 2.Bb8#
      • 1...Kxf1!
  • Keys
    • 1.Bb1!
      • 1...axb1Q+
        • 2.Rxb1#
      • 1...axb1R+
        • 2.Rxb1#
      • 1...axb1S
        • 2.Rxb1#
      • 1...axb1B
        • 2.Rxb1#
      • 1...f1Q
        • 2.Rg6#
      • 1...f1S
        • 2.Rg6#
      • 1...f1B
        • 2.Rg6#
        • 2.Rxb7#
      • 1...f1R
        • 2.Rg6#
      • 1...h5
        • 2.Rg6#
      • 1...h6
        • 2.Rg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 2
  • Sets
    • P(c);OGATEB::B(E)+R(C),XP(e)
    • P(f);OGATE,XB(D)::R(C),XP(f)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • B(D);
    • Vars
      • P(b);CHECK,OGATE,XB(D)::R(C),XQ(b)
      • P(b);CHECK,OGATE,XB(D)::R(C),XR(b)
      • P(b);OGATE,XB(D)::R(C),XS(b)
      • P(b);OGATE,XB(D)::R(C),XB(b)
      • P(c);P_PINB(D)::B(E)+R(C),DCHECK
      • P(c);::B(E)+R(C),DCHECK
      • P(f);N_GUARD::R(C)
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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).