MESON Chess Problem Database

Problem Display
PID: 24371 (8/5p2/3p1B2/1Q6/4kp2/8/5K2/8 w - - 0 1)

Hulsen, Bernhard

Der Reichsbote, 1932

8/5p2/3p1B2/1Q6/4kp2/8/5K2/8

#2

3 + 4

3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qb1#
  • Tries
    • 1.Qb3?
      • 1...f3
        • 2.Qxf3#
      • 1...d5
        • 2.Qc2#
        • 2.Qb1#
      • 1...Kf5!
    • 1.Qe5+?
      • 1...Kd3
        • 2.Qe2#
      • 1...dxe5!
  • Keys
    • 1.Qh5!
      • 1...Kd3
        • 2.Qe2#
      • 1...f3
        • 2.Qxf3#
      • 1...d5
        • 2.Qh7#

This anticipates 157044(2007)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAB(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • P(b);::QAB1(B),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • P(b);::QAB1(B),XP(b)
      • P(c);SBLOCK::QAB(B)
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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).