Problem Display
PID: 24220 (4K3/8/8/4k1p1/4N1B1/8/2Q5/4B3 w - - 0 1)

Poire, AR

Chess Life, 1983

4K3/8/8/4k1p1/4N1B1/8/2Q5/4B3

#2

5 + 2


2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2008

SOLUTION


  • SOUND
  • Keys
    • 1.Sf6!
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Qe4#
      • 1...Kd6
        • 2.Bg3#
      • 1...Kxf6
        • 2.Bc3#

Anticipated by 208794(1876), 121390(1908), 23345(1927), 22287(1934), 22386(1934), 170471(1951), 176158(1954)

This anticipates 211347(1986), 171300(1988), 171470(1988), 23874(1996), 165528(1998), 16167(2000), 26009(2001)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::B(A)
      • K(a);S_FLIGHT,XS(C)::B(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).