MESON Chess Problem Database

Problem Display
PID: 145579 (4K2n/5p1B/1p1N2pR/1RnPk2p/1Qp1N2P/4B3/8/8 w - - 0 1)

Meschick, AG

Good Companions (October), 1917

4K2n/5p1B/1p1N2pR/1RnPk2p/1Qp1N2P/4B3/8/8

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Qc3#
    • 1...Sa6
      • 2.Qc3#
    • 1...Sb7
      • 2.Qc3#
    • 1...Sd7
      • 2.Qc3#
    • 1...c3
      • 2.Qd4#
  • Tries
    • 1.Rxc5?
      • threat
        • 2.Qc3#
      • 1...c3
        • 2.Qxc3#
        • 2.Qd4#
      • 1...bxc5!
  • Keys
    • 1.Sf6!
      • 1...Kxd6
        • 2.Bf4#
      • 1...Kxf6
        • 2.Bd4#
        • 2.Qc3#
      • 1...Sb3
        • 2.Sd7#
      • 1...Sd3
        • 2.Sd7#
      • 1...Sa4
        • 2.Sd7#
      • 1...Se4
        • 2.Sd7#
      • 1...Sa6
        • 2.Sd7#
      • 1...Se6
        • 2.Sd7#
      • 1...Sb7
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...c3
        • 2.Qf4#
      • 1...g5
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(b);::QAB(B)
    • P(a);OGATE::QAB1(B)
  • Tries
    • Try
      • R(E);XS(b)
      • Threat
        • QAB(B)
      • Refutation
        • P(e);XR(E)
  • Actual
    • S(C);
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT,XS(G)::B(A)
      • S(b);N_GUARD::S(C)
      • S(b);N_GUARD::S(C),XS(b)
      • P(a);OGATE::QAB1(B)
      • P(f);::S(G),XP(a)
HTML5 logo

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).