MESON Chess Problem Database

Problem Display
PID: 151619 (5q2/p7/4nPQ1/1PNk1N2/4R3/1P3p2/8/1B1K2B1 w - - 0 1)

Kirillov, Valery Afanasievich

2nd Comm., Probleemblad, 2013

5q2/p7/4nPQ1/1PNk1N2/4R3/1P3p2/8/1B1K2B1

#2

10 + 5

102 Probleemblad 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Sb7?
      • threat
        • 2.Se3#
      • 1...Qh6
        • 2.Se7#
      • 1...Qc5!
    • 1.Sd7?
      • threat
        • 2.Re5#
      • 1...Qxf6
        • 2.Sxf6#
      • 1...Qd6
        • 2.Se3#
      • 1...Qb8!
    • 1.Qg3?
      • threat
        • 2.Re5#
        • 2.Qe5#
      • 1...Qxf6
        • 2.Qd6#
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qb8
        • 2.Se7#
      • 1...Sf4!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Re5#
      • 1...Kxe4
        • 2.Se7#
      • 1...Qxf6
        • 2.Sb4#
      • 1...Qd6
        • 2.Se3#
      • 1...Qb8
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Threat
        • S(H)
      • Vars
        • Q(e);N_GUARD::S(H)
      • Refutation
        • Q(e);
    • Try
      • S(G);
      • Threat
        • R1(E)
      • Vars
        • Q(e);XP(I)::S(G),XQ(e)
        • Q(e);SBLOCK::S(H)
      • Refutation
        • Q(e);
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);N_GUARD,XP(I)::QAR1(J)
        • Q(e);N_GUARD::QAR1(J),XQ(e)
        • Q(e);N_GUARD::S(H)
      • Refutation
        • S(c);
  • Actual
    • S(G);
    • Threat
      • R1(E)
    • Vars
      • K(b);S_FLIGHT,XR(E)::QAB(J)+S(H)
      • Q(e);N_GUARD,XP(I)::S(G)
      • Q(e);SBLOCK::S(H)
      • Q(e);N_GUARD::S(G)
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).