MESON Chess Problem Database

Problem Display
PID: 71330 (8/6b1/pB6/2rP1Q1K/2Pk1p2/qp1n1n2/1N4B1/3N4 w - - 0 1)

Miro, Francois

La Cle, 1970

8/6b1/pB6/2rP1Q1K/2Pk1p2/qp1n1n2/1N4B1/3N4

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qxd3#
    • 1...Sc1
      • 2.Qxf4#
    • 1...Sde1
      • 2.Qxf4#
    • 1...Sb4
      • 2.Qxf4#
    • 1...Sde5
      • 2.Qxf4#
    • 1...Sfe1
      • 2.Qe4#
    • 1...Sg1
      • 2.Qe4#
    • 1...Sh2
      • 2.Qe4#
    • 1...Sh4
      • 2.Qe4#
    • 1...Sfe5
      • 2.Qe4#
  • Keys
    • 1.d6!
      • threat
        • 2.Qd5#
      • 1...Be5
        • 2.Qxd3#
      • 1...Sb4
        • 2.Bxc5#
      • 1...Sde5
        • 2.Qxf4#
      • 1...Sfe5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • B(i);SBLOCK::QAR1(F),XS(c)
    • S(c);N_GUARD::QAR2(F),XP(f)
    • S(d);::QAR1(F)
  • Actual
    • P(E);P_SPINQ(F)
    • Threat
      • QAR1(F)
    • Vars
      • B(i);N_PINQ(F),SBLOCK::QAR1(F),XS(c)
      • S(c);N_GUARD,S_CUTQ(a)::B(H),XR(g)
      • S(c);N_PINQ(F)::QAR2(F),XP(f)
      • S(d);N_PINQ(F)::QAR1(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).