MESON Chess Problem Database

Problem Display
PID: 184236 (8/5B1Q/4N3/b1Pk4/5P2/1KpN4/6p1/8 w - - 0 1)

Shpakovsky, Aleksandr Nikolaevich

Kudesnik, 2018

8/5B1Q/4N3/b1Pk4/5P2/1KpN4/6p1/8

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4
      • 2.Sxb4#
    • 1...Bb6
      • 2.Sb4#
    • 1...Bc7
      • 2.Sb4#
    • 1...Bd8
      • 2.Sb4#
    • 1...g1B
      • 2.Qh1#
  • Tries
    • 1.Se5?
      • threat
        • 2.Qd3#
      • 1...g1B
        • 2.Qh1#
      • 1...g1Q!
    • 1.Sg5+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Kc6!
    • 1.Sc7+?
      • 1...Kc6
        • 2.Bd5#
      • 1...Kd4!
    • 1.Be8?
      • threat
        • 2.Qf5#
      • 1...Kxe6
        • 2.Qf7#
      • 1...Bc7!
  • Keys
    • 1.Bg8!
      • threat
        • 2.Qb7#
      • 1...Kc6
        • 2.Sd4#
      • 1...Bc7
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD::S(B),XB(c)
    • B(c);N_GUARD::S(B)
    • P(a);OGATEB::QAB(G)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR2(G)
      • Vars
        • P(a);OGATEB::QAB(G)
      • Refutation
        • P(a);
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(d);S_FLIGHT::B(F)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • B(F);
      • Threat
        • QAR2(G)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(E)::QAB1(G)
      • Refutation
        • B(c);
  • Actual
    • B(F);
    • Threat
      • QAB(G)
    • Vars
      • K(d);S_FLIGHT::S(E)
      • B(c);N_GUARD::S(B)
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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).