MESON Chess Problem Database

Problem Display
PID: 110847 (3R2bq/4pr1p/2pP4/2p1kBP1/p3nN1K/r1p1NRp1/8/3Q4 w - - 0 1)

Pituk, Alexander

Moment, 2000

3R2bq/4pr1p/2pP4/2p1kBP1/p3nN1K/r1p1NRp1/8/3Q4

#2

9 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Sg4#
    • 1...h5
      • 2.Sg6#
    • 1...h6
      • 2.Sg6#
  • Tries
    • 1.Qd4+?
      • 1...cxd4
        • 2.Sd3#
      • 1...Kxd4!
    • 1.dxe7?
      • threat
        • 2.Sd3#
      • 1...Rxf5
        • 2.Sg4#
      • 1...Sxg5
        • 2.Qd6#
      • 1...Sf2
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...c4
        • 2.Qd4#
      • 1...c2!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qxe4#
      • 1...Rxf5
        • 2.Sg4#
      • 1...Sxg5
        • 2.Sg4#
      • 1...Sxd6
        • 2.Sg4#
      • 1...Sd2
        • 2.Sg4#
      • 1...Sf2
        • 2.Sc4#
      • 1...Sf6
        • 2.Sc4#

This is a version of 78882

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(j);SBLOCK,XB(F)::S(B)
    • P(k);N_GUARD::S(D)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • P(f);SBLOCK,XQ(A)::S(D)
      • Refutation
        • K(g);S_FLIGHT,XQ(A)
    • Try
      • P(H);XP(i)
      • Threat
        • S(D)
      • Vars
        • R(j);SBLOCK,XB(F)::S(B)
        • S(e);N_GUARD,XP(G)::QAB1(A)
        • S(e);N_GUARD::QAB1(A)
        • S(e);N_GUARD::QAB1(A),XS(e)
        • P(f);N_GUARD::QAB1(A)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XS(e)
    • Vars
      • R(j);SBLOCK,XB(F)::S(B)
      • S(e);XP(G)::S(B)
      • S(e);XP(H)::S(B)
      • S(e);::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).