MESON Chess Problem Database

Problem Display
PID: 207099 (3Nk3/4b2N/8/4Q3/8/8/4K3/8 w - - 0 1)

Wescott, JH

New York Clipper, 1866

3Nk3/4b2N/8/4Q3/8/8/4K3/8

#2

4 + 2

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Kxd8
        • 2.Qb8#
      • 1...Kf8!
  • Keys
    • 1.Sf8!
      • 1...Kxd8
        • 2.Qb8#
      • 1...Kxf8
        • 2.Qh8#

This anticipates 56675(1923), 10797(1968)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT,XS(D)::QAR2(B)
      • Refutation
        • K(b);N_SPINB(a),P-FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(b);N_SPINB(a),OGATEB,P-FLIGHT,XS(D)::QAR2(B)
      • K(b);N_SPINB(a),OGATEB,P-FLIGHT,XS(C)::QAR2(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).