MESON Chess Problem Database

Problem Display
PID: 229432 (8/PRp3B1/1P3p1r/3p2p1/4k1N1/1N6/3K3p/5Q2 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Sachova skladba, 2003

8/PRp3B1/1P3p1r/3p2p1/4k1N1/1N6/3K3p/5Q2

#2

8 + 7

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Sc5#
    • 1...cxb6
      • 2.Re7#
    • 1...c5
      • 2.Re7#
    • 1...c6
      • 2.Re7#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qf5#
      • 1...f5
        • 2.Sc5#
        • 2.Qxf5#
      • 1...Ke5!
    • 1.Sxh6?
      • threat
        • 2.Qf5#
      • 1...f5
        • 2.Sc5#
        • 2.Qxf5#
      • 1...Ke5!
    • 1.Qf2?
      • threat
        • 2.Sc5#
      • 1...cxb6
        • 2.Re7#
      • 1...c5
        • 2.Sxc5#
        • 2.Re7#
      • 1...d4!
    • 1.a8Q?
      • threat
        • 2.Qe8#
      • 1...d4
        • 2.Rxc7#
      • 1...f5
        • 2.Sc5#
      • 1...Rh8!
  • Keys
    • 1.Rxc7!
      • threat
        • 2.Re7#
      • 1...d4
        • 2.a8Q#
        • 2.a8B#
      • 1...f5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • P(e);::S(C)
    • P(g);OGATE,XP(E)::R(G)
    • P(g);OGATE::R(G)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(e)
    • Try
      • S(D);XR(f)
      • Threat
        • QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(e)
    • Try
      • Q(A);
      • Threat
        • S(C)
      • Vars
        • P(g);OGATE,XP(E)::R(G)
      • Refutation
        • P(c);
    • Try
      • P(F);
      • Threat
        • QAR(F)
      • Vars
        • P(c);OGATEB::QAB(F)+R(G),XP(g)
        • P(e);::S(C)
      • Refutation
        • R(f);
  • Actual
    • R(G);XP(g)
    • Threat
      • R(G)
    • Vars
      • P(c);::P=Q
      • P(e);::S(C)
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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).