MESON Chess Problem Database

Problem Display
PID: 56251 (k1Kn4/q1pp3Q/8/3Nb3/8/8/R7/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

StrateGems, 2004

k1Kn4/q1pp3Q/8/3Nb3/8/8/R7/8

#2

4 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Rxa3#
    • 1...Qa4
      • 2.Rxa4#
    • 1...Qa5
      • 2.Rxa5#
    • 1...Qa6+
      • 2.Rxa6#
    • 1...Ba1
      • 2.Sxc7#
    • 1...Bb2
      • 2.Sxc7#
    • 1...Bc3
      • 2.Sxc7#
    • 1...Bd4
      • 2.Sxc7#
    • 1...Bf6
      • 2.Sxc7#
    • 1...Bg7
      • 2.Sxc7#
    • 1...Bh8
      • 2.Sxc7#
    • 1...c5
      • 2.Sb6#
    • 1...c6
      • 2.Sb6#
    • 1...d6
      • 2.Sxc7#
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qb8#
      • 1...Qa6+
        • 2.Rxa6#
      • 1...Bb2
        • 2.Sxc7#
      • 1...Sc6
        • 2.Qb7#
      • 1...Sb7
        • 2.Qxb7#
      • 1...c5
        • 2.Sb6#
      • 1...c6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(b);OGATEB::R(A),XQ(b)
    • Q(b);CHECK,OGATEB::R(A),XQ(b)
    • B(a);N_GUARD::S(B),XP(c)
    • P(c);N_GUARD::S(B)
    • P(d);S_CUTB(a)::S(B),XP(c)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • Q(b);CHECK,OGATEB::R(A),XQ(b)
      • B(a);N_GUARD::S(B),XP(c)
      • S(f);N_GUARD::QAB1(C)
      • S(f);N_GUARD::QAB1(C),XS(f)
      • P(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).