MESON Chess Problem Database

Problem Display
PID: 175746 (8/4p3/3pR3/3k2KB/1P2R3/1PPN4/3P4/8 w - - 0 1)

van Dijk, Johannes

Haagsche Courant, 1899

8/4p3/3pR3/3k2KB/1P2R3/1PPN4/3P4/8

#2

9 + 3

6490 yacpdb 2018
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sc5?
      • 1...dxc5
        • 2.R4e5#
        • 2.c4#
      • 1...Kc6!
  • Keys
    • 1.Se5!
      • 1...Kxe4
        • 2.Bf3#
      • 1...Kxe6
        • 2.Bf7#
      • 1...dxe5
        • 2.R4xe5#

This anticipates 60639(1906)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XR(F)::B(H)
      • K(a);OGATEB,S_FLIGHT,XR(I)::B(H)
      • P(b);OGATE,XS(D)::R1(F),XP(b)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).