MESON Chess Problem Database

Problem Display
PID: 22049 (1n2k1b1/r1p2NP1/q2p2P1/1r2N2K/B6B/8/4Q3/3RR3 w - - 0 1)

Seilberger, Johann Joseph Petrus Adrianus

Western Morning News, 1923

(First published on Sat Nov 24 1923)

1n2k1b1/r1p2NP1/q2p2P1/1r2N2K/B6B/8/4Q3/3RR3

#2

10 + 8

5862 An ABC of Chess Problems 1970
6490 yacpdb 2009
14868 Pirnie Collection 2013
5454 Near Snap 2017
15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf7
      • 2.gxf7#
    • 1...dxe5
      • 2.Rd8#
    • 1...c6
      • 2.Sxd6#
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qe6#
      • 1...Bxf7
        • 2.gxf7#
      • 1...dxe5
        • 2.Rd8#
      • 1...Qc8
        • 2.Qxc8#
      • 1...Sc6
        • 2.Qd7#
      • 1...d5
        • 2.Sc6#
      • 1...c5
        • 2.Sd7#
      • 1...c6
        • 2.Sxd6#

This anticipates 117947(1930)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(h);OGATE,P_PINP(H),XS(I)::P(H),XB(h)
    • P(c);OGATE,P_SPINP(c),XS(F)::R1(A)
    • P(e);N_GUARD,N_SPINR(a),S_CUTQ(b)::S(I),XP(c)
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • B(h);OGATE,P_PINP(H),XS(I)::P(H),XB(h)
      • P(c);OGATE,P_SPINP(c),XS(F)::R1(A)
      • Q(b);N_GUARD::QAR2(C),XQ(b)
      • S(f);N_GUARD,N_SPINR(a)::QAB1(C)
      • P(c);N_PINS(F)::R(B)+S(F)
      • P(e);N_PINS(F)::R(B)+S(F)
      • P(e);N_GUARD,N_SPINR(a),S_CUTQ(b)::S(I),XP(c)
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).