MESON Chess Problem Database

Problem Display
PID: 86601 (4K3/1p6/1Pn5/3p1Q2/BpkP1RN1/2q1p3/N3P3/8 w - - 0 1)

Mityushin, Anatoly

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Magyar Sakkszovetseg, 1979

4K3/1p6/1Pn5/3p1Q2/BpkP1RN1/2q1p3/N3P3/8

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sxe3#
      • 2.Qd3#
    • 1...Qe1
      • 2.Sxe3#
      • 2.Qd3#
    • 1...Qb2
      • 2.Sxe3#
      • 2.Qd3#
    • 1...Qxd4
      • 2.Qc2#
    • 1...Qc1
      • 2.Qd3#
    • 1...Qc2
      • 2.Sxe3#
      • 2.Qxc2#
    • 1...Qd3
      • 2.Qxd3#
      • 2.exd3#
    • 1...Sxd4
      • 2.Qc8#
    • 1...Sa5
      • 2.Se5#
    • 1...Se5
      • 2.Sxe5#
    • 1...Sa7
      • 2.Se5#
    • 1...Se7
      • 2.Se5#
    • 1...Sb8
      • 2.Se5#
    • 1...Sd8
      • 2.Se5#
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qc5#
      • 1...Qxd4
        • 2.Sxe3#
      • 1...Sxd4
        • 2.Se5#
      • 1...Se7
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(a);OGATEB,P_SPINQ(a),XP(D)::QAR2(G)
    • Q(a);N_GUARD::QAB1(G)
    • S(f);OGATEB,P_SPINS(f),XP(D)::QAR(G)
    • S(f);N_GUARD::S(F)
    • S(f);N_GUARD::S(F),XS(f)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • Q(a);N_GUARD,P_SPINQ(a),XP(D)::S(F),XP(b)
      • S(f);N_GUARD,P_SPINS(f),XP(D)::S(F)
      • S(f);N_GUARD::S(F)
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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).