MESON Chess Problem Database

Problem Display
PID: 20958 (KQ6/8/3Np2B/1Rq1k2n/1N2pR2/8/6b1/8 w - - 0 1)

Stubbs, Arthur Goodwin

1st Prize, Hampstead Express, 1914

KQ6/8/3Np2B/1Rq1k2n/1N2pR2/8/6b1/8

#2

7 + 6

3360 Simple Two-move Themes 1924
3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb5
      • 2.Sxb5#
    • 1...Qd5+
      • 2.Sc6#
    • 1...Sxf4
      • 2.Bg7#
    • 1...Sf6
      • 2.Sf5#
    • 1...e3+
      • 2.Sb7#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qxc5#
      • 1...Qd5+
        • 2.Sc6#
      • 1...e3+
        • 2.Sb7#
      • 1...Kd4
        • 2.Qxc5#
      • 1...Qxb5
        • 2.Sxb5#
      • 1...Sxf4
        • 2.Bg7#
      • 1...Sf6
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_SPINQ(c),XR(C)::QAB(G)+S(D),XQ(c)
    • Q(c);CHECK::S(A)
    • S(e);N_GUARD,SBLOCK,XR(B)::B(E)
    • S(e);SBLOCK::QAB(G)+S(D)
    • P(b);CHECK::QAB(G)+S(D)
  • Actual
    • Q(G);
    • Threat
      • QAR2(G),XQ(c)
    • Vars
      • Q(c);CHECK::S(A)
      • P(b);CHECK::QAB(G)+S(D)
      • K(d);N_SPINQ(c),P_SPINP(b),S_FLIGHT::QAB1(G),XQ(c)
      • Q(c);N_SPINQ(c),XR(C)::QAB(G)+S(D),XQ(c)
      • S(e);N_GUARD,SBLOCK,XR(B)::B(E)
      • S(e);SBLOCK::QAB(G)+S(D)
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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).