Problem Display
PID: 222935 (4N3/5p2/4p3/4k3/N6K/8/8/2Q5 w - - 0 1)

Pradignat, Emile Leonard

La Strategie, 1886

4N3/5p2/4p3/4k3/N6K/8/8/2Q5

#2

4 + 3


5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Sf6!
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf5
        • 2.Qg5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kxf6
        • 2.Qg5#

This anticipates 175226(1902), 203213(1924), 227462(1926), 219854(1974), 12144(1975), 50335(2003), 204598(2012)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT,XS(D)::QAB1(A)


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).