MESON Chess Problem Database

Problem Display
PID: 198866 (5R2/b5q1/2p3P1/5Npp/R2B2kP/4P2p/1Q5n/1K6 w - - 0 1)

Hartong, Jan

Tidskrift for Schack, 1921

5R2/b5q1/2p3P1/5Npp/R2B2kP/4P2p/1Q5n/1K6

#2

9 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qe2#
  • Tries
    • 1.Sh6+?
      • 1...Kg3
        • 2.Qf2#
      • 1...Kxh4
        • 2.Qf2#
      • 1...Qxh6!
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qg3#
      • 1...Qb7+
        • 2.Bb6#
      • 1...Qxf8
        • 2.Bc5#
      • 1...gxh4
        • 2.Qf4#
      • 1...Qe5
        • 2.Sh6#
      • 1...Qf6
        • 2.Sh6#
      • 1...Qc7
        • 2.Sh6#
      • 1...Qf7
        • 2.Sh6#
      • 1...Bb8
        • 2.Be5#
      • 1...Sf1
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB(B)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(B)
        • K(c);P-FLIGHT,XP(F)::QAB(B)
      • Refutation
        • Q(h);XS(G)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • Q(h);CHECK,N_GUARD::R(D)+B(E)
      • Q(h);N_GUARD,XR(I)::R(D)+B(E)
      • P(d);N_GUARD,XP(F)::QAR1(B)
      • Q(h);N_GUARD::S(G)
      • B(g);N_GUARD::R(D)+B(E)
      • S(a);N_GUARD::QAB(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).