MESON Chess Problem Database

Problem Display
PID: 169286 (2Q5/8/1K1p4/1p1pp3/1p1kr2R/p2Pp3/3P4/2N5 w - - 0 1)

Slesarenko, Anatoly Vasilevich

3rd Prize, SuperProblem 189. TT, 2017

2Q5/8/1K1p4/1p1pp3/1p1kr2R/p2Pp3/3P4/2N5

#2

6 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...b3
      • 2.Qc3#
  • Tries
    • 1.Rh3?
      • 1...exd2
        • 2.Sb3#
      • 1...Rf4
        • 2.dxe3#
      • 1...Rg4
        • 2.dxe3#
      • 1...Rh4
        • 2.dxe3#
      • 1...e2
        • 2.Sb3#
      • 1...b3
        • 2.Qc3#
      • 1...a2!
    • 1.Qc2?
      • threat
        • 2.Se2#
        • 2.Sb3#
      • 1...e2
        • 2.Sxe2#
        • 2.Sb3#
      • 1...b3
        • 2.Se2#
        • 2.Sxb3#
        • 2.Qc3#
      • 1...exd2!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qxe3#
      • 1...exd2
        • 2.Se2#
      • 1...e2
        • 2.Sxe2#
        • 2.Sb3#
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(c);N_GUARD::QAB1(F)
  • Tries
    • Try
      • R(D);N_PINR(e)
      • Vars
        • P(b);XP(B)::S(A)
        • R(e);N_GUARD::P(B),XP(b)
        • P(b);::S(A)
        • P(c);N_GUARD::QAB1(F)
      • Refutation
        • P(a);
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);XP(B)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F),XP(b)
    • Vars
      • P(b);XP(B)::S(A)
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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).