MESON Chess Problem Database

Problem Display
PID: 57295 (6Q1/7K/6P1/4p2p/6pk/4P1NP/8/6R1 w - - 0 1)

Chistyakov, Aleksandr N

Kozhakin, Vladimir Vladimirovich

Troll, 1997

6Q1/7K/6P1/4p2p/6pk/4P1NP/8/6R1

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kg5
      • 2.Qd8#
    • 1...gxh3
      • 2.Sf5#
  • Tries
    • 1.Qa8?
      • 1...Kxh3
        • 2.Qh1#
      • 1...Kg5
        • 2.Qd8#
      • 1...gxh3
        • 2.Sf5#
      • 1...e4!
  • Keys
    • 1.Qd5!
      • 1...Kxh3
        • 2.Qh1#
      • 1...Kg5
        • 2.Qd8#
      • 1...gxh3
        • 2.Sf5#
      • 1...e4
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(G)
    • P(a);SBLOCK,XP(D)::S(C)
  • Tries
    • Try
      • Q(G);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(D)::QAR2(G)
        • K(b);S_FLIGHT::QAB(G)
        • P(a);SBLOCK,XP(D)::S(C)
      • Refutation
        • P(c);
  • Actual
    • Q(G);
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(D)::QAR2(G)
      • K(b);P_SPINP(c),S_FLIGHT::QAB(G)
      • P(a);SBLOCK,XP(D)::S(C)
      • P(c);OGATE::QAR1(G),XP(d)
HTML5 logo

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).