MESON Chess Problem Database

Problem Display
PID: 267953 (7k/r1p4P/p3NpP1/2P3p1/1p6/1K2p2N/1b5Q/5r2 w - - 0 1)

Argunov, Nikolai Dmitrievich

Shakhmatnaya kompozitsiya, 1995

7k/r1p4P/p3NpP1/2P3p1/1p6/1K2p2N/1b5Q/5r2

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Qxb2#
    • 1...c6
      • 2.Qb8#
  • Tries
    • 1.Sf2?
      • threat
        • 2.g7#
      • 1...c6
        • 2.Qb8#
      • 1...f5!
    • 1.Shf4?
      • threat
        • 2.g7#
      • 1...f5
        • 2.Qxb2#
      • 1...c6!
    • 1.Shxg5?
      • threat
        • 2.Sf7#
        • 2.g7#
      • 1...f5
        • 2.Sf7#
        • 2.Qxb2#
      • 1...c6
        • 2.Qb8#
      • 1...fxg5!
  • Keys
    • 1.Sg1!
      • threat
        • 2.g7#
      • 1...f5
        • 2.Qxb2#
      • 1...c6
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(g);OGATEB::QAB(A),XB(b)
    • P(i);OGATE::QAR(A)
  • Tries
    • Try
      • S(C);
      • Threat
        • P(F)
      • Vars
        • P(i);OGATE::QAR(A)
      • Refutation
        • P(g);
    • Try
      • S(C);
      • Threat
        • P(F)
      • Vars
        • P(g);OGATEB::QAB(A),XB(b)
      • Refutation
        • P(i);
    • Try
      • S(C);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • P(i);OGATE::QAR(A)
      • Refutation
        • P(g);XS(C)
  • Actual
    • S(C);
    • Threat
      • P(F)
    • Vars
      • P(g);OGATEB::QAB(A),XB(b)
      • P(i);OGATE::QAR(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).