MESON Chess Problem Database

Problem Display
PID: 262961 (K3R1n1/2p5/3k2N1/1Q6/8/8/8/8 w - - 0 1)

Kirichenko, Anatoly Yakovlevich

Shmatov, Vladimir Afanasievich

Zadachi i Etyudi, 2008

K3R1n1/2p5/3k2N1/1Q6/8/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Kb7?
      • threat
        • 2.Qc6#
      • 1...c6
        • 2.Qxc6#
      • 1...Se7!
    • 1.Se5?
      • threat
        • 2.Sc4#
        • 2.Sf7#
        • 2.Qc6#
      • 1...c5
        • 2.Qc6#
        • 2.Qd7#
      • 1...c6
        • 2.Qxc6#
      • 1...Sh6
        • 2.Sc4#
        • 2.Qc6#
      • 1...Se7!
    • 1.Qe5+?
      • 1...Kd7
        • 2.Qe6#
      • 1...Kc6!
  • Keys
    • 1.Sf8!
      • threat
        • 2.Re6#
      • 1...c5
        • 2.Qd7#
      • 1...c6
        • 2.Qe5#
      • 1...Se7
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • QAR1(A)
      • Vars
        • P(b);::QAR1(A),XP(b)
      • Refutation
        • S(c);
    • Try
      • S(B);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);::QAR1(A),XP(b)
      • Refutation
        • S(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(B);
    • Threat
      • R1(D)
    • Vars
      • P(b);SBLOCK::QAR1(A)
      • P(b);SBLOCK::QAB1(A)
      • S(c);SBLOCK::R(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).