MESON Chess Problem Database

Problem Display
PID: 4989 (8/KN6/8/8/1k6/4B3/8/3Q4 w - - 0 1)

Adolphi, Heinrich Leonhard

Der kleine Problemfreund, 1896

8/KN6/8/8/1k6/4B3/8/3Q4

#2

4 + 1

6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • 1...Ka3
        • 2.Bc5#
      • 1...Kb5!
  • Keys
    • 1.Sc5!
      • 1...Ka3
        • 2.Qb3#
      • 1...Kc3
        • 2.Qb3#
      • 1...Kc4
        • 2.Qb3#
      • 1...Ka5
        • 2.Qa4#
      • 1...Kb5
        • 2.Qa4#

This anticipates 213411(1972)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);P-FLIGHT::QAB1(A)
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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).