MESON Chess Problem Database

Problem Display
PID: 66247 (Q1N5/1n6/4pb1R/1p1kn3/2R2P2/8/N3K3/6B1 w - - 0 1)

Clark, WA

1st Prize=, The Schoolmaster, 1896

Q1N5/1n6/4pb1R/1p1kn3/2R2P2/8/N3K3/6B1

#2

8 + 6

58 Tijdschrift vd NSB 1896

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc4
      • 2.Qxb7#
  • Tries
    • 1.Qxb7+?
      • 1...Sc6
        • 2.Qxc6#
        • 2.Qxb5#
      • 1...Kxc4!
  • Keys
    • 1.Qa6!
      • 1...Kxc4
        • 2.Qxe6#
      • 1...Sxc4
        • 2.Qxb7#
      • 1...bxc4
        • 2.Sc3#
      • 1...Bh4
        • 2.Qxe6#
      • 1...Bg5
        • 2.Qxe6#
      • 1...Be7
        • 2.Qxe6#
      • 1...Bg7
        • 2.Qxe6#
      • 1...Bd8
        • 2.Qxe6#
      • 1...Bh8
        • 2.Qxe6#
      • 1...Sd3
        • 2.Qc6#
      • 1...Sf3
        • 2.Qc6#
      • 1...Sg4
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sg6
        • 2.Qc6#
      • 1...Sd7
        • 2.Qc6#
      • 1...Sf7
        • 2.Qc6#
      • 1...Sa5
        • 2.Qxb5#
      • 1...Sc5
        • 2.Rd4#
      • 1...Sd6
        • 2.Sb6#
      • 1...Sd8
        • 2.Qxb5#
      • 1...b4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 20
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD,SBLOCK,XR(D)::QAB(G),XS(f)
  • Tries
    • Try
      • Q(G);CHECK,XS(f)
      • Refutation
        • K(b);S_FLIGHT,XR(D)
  • Actual
    • Q(G);N_PINS(f)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT,XR(D)::QAB(G),XP(d)
      • S(c);N_GUARD,SBLOCK,XR(D)::QAB(G),XS(f)
      • P(a);XR(D)::S(B)
      • B(e);::QAB1(G),XP(d)
      • S(c);N_GUARD::QAB1(G)
      • S(c);N_GUARD::QAB1(G),XS(c)
      • S(f);N_GUARD::QAR2(G),XP(a)
      • S(f);SBLOCK::R1(D)
      • S(f);SBLOCK::S(H)
      • P(a);::S(B),XP(a)
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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).