MESON Chess Problem Database

Problem Display
PID: 263106 (8/8/4nB2/5pp1/3P1kN1/3n2R1/4b2K/4R2B w - - 0 1)

Shpakovsky, Aleksandr Nikolaevich

SuperProblem, 2020

8/8/4nB2/5pp1/3P1kN1/3n2R1/4b2K/4R2B

#2

7 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Be5#
    • 1...Sxe1
      • 2.Be5#
    • 1...Sb2
      • 2.Be5#
    • 1...Sf2
      • 2.Be5#
    • 1...Sb4
      • 2.Be5#
    • 1...Sdc5
      • 2.Be5#
    • 1...Se5
      • 2.Bxe5#
  • Tries
    • 1.Sf2?
      • threat
        • 2.Sh3#
      • 1...Sxf2
        • 2.Be5#
      • 1...Bf1
        • 2.Rf3#
      • 1...Bg4
        • 2.Sxd3#
      • 1...g4!
    • 1.Se3?
      • threat
        • 2.Sd5#
      • 1...Sb4
        • 2.Be5#
      • 1...Sc7
        • 2.Bxg5#
      • 1...Bf3!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sg6#
      • 1...Sxe5
        • 2.Bxe5#
      • 1...Bh5
        • 2.Sxd3#
      • 1...Sf8
        • 2.Bxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • S(b);N_GUARD::B(G)
    • S(b);N_GUARD,XR(A)::B(G)
    • S(b);N_GUARD::B(G),XS(b)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • S(b);N_GUARD,XS(F)::B(G)
        • B(a);N_GUARD::R1(D)
        • B(a);N_GUARD::S(F),XS(b)
      • Refutation
        • P(e);
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • S(b);N_GUARD::B(G)
        • S(f);N_GUARD::B(G),XP(e)
      • Refutation
        • B(a);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • S(b);OGATE,XS(F)::B(G),XS(b)
      • B(a);N_GUARD::S(F),XS(b)
      • S(f);N_GUARD::B(G),XP(e)
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).