MESON Chess Problem Database

Problem Display
PID: 59996 (Q7/1NKpp3/B4p2/1Npkrn2/4p3/2Bpb1qb/8/8 w - - 0 1)

Mari, Alberto

6th HM., Brisbane Courier, 1926

Q7/1NKpp3/B4p2/1Npkrn2/4p3/2Bpb1qb/8/8

#2

6 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Sa5#
    • 1...Ke6
      • 2.Sd8#
    • 1...Re6+
      • 2.S7d6#
    • 1...e6
      • 2.Sa5#
      • 2.S7d6#
  • Tries
    • 1.Sa3?
      • threat
        • 2.Sd8#
        • 2.Bc4#
      • 1...Re6+
        • 2.Sd6#
      • 1...Ke6
        • 2.Sd8#
      • 1...Sd4
        • 2.Bc4#
      • 1...c4
        • 2.Bxc4#
      • 1...Sd6!
    • 1.S5d6?
      • threat
        • 2.Sd8#
        • 2.Bc4#
      • 1...Ke6
        • 2.Sd8#
      • 1...exd6
        • 2.Sd8#
      • 1...Sd4
        • 2.Bc4#
      • 1...c4
        • 2.Bxc4#
      • 1...Sxd6!
  • Keys
    • 1.Kb6!
      • threat
        • 2.Sc7#
      • 1...Re6+
        • 2.S7d6#
      • 1...c4+
        • 2.Sc5#
      • 1...Kc4
        • 2.Sa5#
      • 1...Ke6
        • 2.Sd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(g);S_FLIGHT::S(D)
    • R(h);CHECK,SBLOCK::QAB(F)+S(D)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);CHECK,SBLOCK::QAB(F)+S(D)
        • K(g);S_FLIGHT::S(D)
        • S(i);::B(C)
        • P(f);::B(C),XP(f)
      • Refutation
        • S(i);
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(g);S_FLIGHT::S(D)
        • P(l);XS(B)::QAB(F)+S(D)
        • S(i);::B(C)
        • P(f);::B(C),XP(f)
      • Refutation
        • S(i);XS(B)
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • S(B)
    • Vars
      • R(h);CHECK,SBLOCK::QAB(F)+S(D)
      • P(f);CHECK,SBLOCK::QAB(F)+S(D)
      • K(g);S_FLIGHT::S(D)
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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).