Problem Display
PID: 93848 (4K2Q/8/3p1Np1/3Pk1p1/3p1pP1/5r2/8/8 w - - 0 1)

Miltner, Vratislav

Ceske Slovo, 1943

4K2Q/8/3p1Np1/3Pk1p1/3p1pP1/5r2/8/8

#2

5 + 7


6490 yacpdb 2009
5454 Near Snap 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Qh6?
      • threat
        • 2.Qxg5#
      • 1...Kxf6
        • 2.Qh8#
      • 1...d3!
    • 1.Qh7?
      • threat
        • 2.Qe7#
      • 1...Kxf6
        • 2.Qe7#
        • 2.Qh8#
      • 1...d3!
    • 1.Qg8?
      • threat
        • 2.Qe6#
      • 1...Kxf6
        • 2.Qh8#
      • 1...d3!
  • Keys
    • 1.Qh1!
      • 1...Kxf6
        • 2.Qh8#
      • 1...d3
        • 2.Qa1#
      • 1...Rf1
        • 2.Sd7#
      • 1...Rf2
        • 2.Sd7#
      • 1...Ra3
        • 2.Sd7#
      • 1...Rb3
        • 2.Sd7#
      • 1...Rc3
        • 2.Sd7#
      • 1...Rd3
        • 2.Sd7#
      • 1...Re3
        • 2.Sd7#
      • 1...Rg3
        • 2.Sd7#
      • 1...Rh3
        • 2.Sd7#

Anticipated by 178108(1898), 187969(1910)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAR2(E),XP(e)
      • Vars
        • K(d);OGATEB,P_SPINP(g),S_FLIGHT,XS(C)::QAB(E)
      • Refutation
        • P(b);
    • Try
      • Q(E);
      • Threat
        • QAR2(E)
      • Refutation
        • P(b);
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(C)::QAB(E)
      • Refutation
        • P(b);
  • Actual
    • Q(E);
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(C)::QAB(E)
      • P(b);OGATEB::QAB(E)
      • R(a);::S(C)


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).