MESON Chess Problem Database

Problem Display
PID: 99167 (7Q/BNKn3N/3Pp1p1/2pknpR1/5RP1/8/4P3/8 w - - 0 1)

Haring, Jacobus

Budapesti Sakkszovetseg, 1986

7Q/BNKn3N/3Pp1p1/2pknpR1/5RP1/8/4P3/8

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.e4#
    • 1...Sb6
      • 2.Sf6#
    • 1...Sf6
      • 2.Sxf6#
    • 1...Sb8
      • 2.Sf6#
    • 1...Sf8
      • 2.Sf6#
    • 1...c4
      • 2.Rd4#
  • Tries
    • 1.Qxe5+?
      • 1...Sxe5
        • 2.Sf6#
      • 1...Kxe5!
  • Keys
    • 1.Sa5!
      • 1...Sxg4
        • 2.e4#
      • 1...fxg4
        • 2.Qa8#
      • 1...Sd3
        • 2.e4#
      • 1...Sf3
        • 2.e4#
      • 1...Sc4
        • 2.e4#
      • 1...Sc6
        • 2.e4#
      • 1...Sf7
        • 2.e4#
      • 1...Sb6
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sb8
        • 2.Sf6#
      • 1...Sf8
        • 2.Sf6#
      • 1...c4
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(c);P_SPINP(d),SBLOCK::P(A)
    • S(g);N_GUARD::S(I)
    • S(g);N_GUARD::S(I),XS(g)
    • P(a);N_GUARD::R1(B)
  • Tries
    • Try
      • Q(J);CHECK,XS(c)
      • Vars
        • S(g);SBLOCK,XQ(J)::S(I)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(d),XQ(J)
  • Actual
    • S(G);
    • Vars
      • S(c);P_SPINP(d),XP(C)::P(A)
      • P(d);P_SPINS(c),XP(C)::QAB(J)
      • S(c);P_SPINP(d)::P(A)
      • S(g);N_GUARD::S(I)
      • S(g);N_GUARD::S(I),XS(g)
      • P(a);N_GUARD::R1(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).