MESON Chess Problem Database

Problem Display
PID: 16671 (5B1Q/Rn3nR1/2BN1pp1/p2PkNP1/5p2/2Kp4/8/3b4 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1942

5B1Q/Rn3nR1/2BN1pp1/p2PkNP1/5p2/2Kp4/8/3b4

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sh6
      • 2.Re7#
    • 1...Sxh8
      • 2.Re7#
    • 1...f3
      • 2.Qh2#
    • 1...fxg5
      • 2.Rxf7#
  • Tries
    • 1.Rxf7?
      • threat
        • 2.Re7#
        • 2.Qxf6#
      • 1...gxf5
        • 2.Qxf6#
      • 1...f3
        • 2.Qh2#
      • 1...Sc5
        • 2.Qxf6#
      • 1...Sd8
        • 2.Qxf6#
      • 1...Sxd6!
  • Keys
    • 1.Se3!
      • threat
        • 2.Sec4#
      • 1...Sbxd6
        • 2.Re7#
      • 1...Sfxd6
        • 2.Re7#
      • 1...fxe3
        • 2.Qh2#
      • 1...fxg5
        • 2.Rxf7#
      • 1...f3
        • 2.Qh2#
      • 1...Bb3
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(i);OGATE::R(H)
    • S(i);OGATE,XQ(J)::R(H)
    • P(c);OGATEB::QAB(J)
    • P(f);OGATEB,XP(D)::QAB(J)+R(H),XS(i)
  • Tries
    • Try
      • R(H);P_PINP(f),XS(i)
      • Threat
        • DUALS(2)
      • Vars
        • P(g);XS(C)::QAB1(J),XP(f)
        • P(c);OGATEB::QAB(J)
        • S(h);::QAB1(J),XP(f)
      • Refutation
        • S(h);XS(F)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • S(h);OGATE,SBLOCK,XS(F)::R(G)
      • S(i);OGATE,SBLOCK,XS(F)::R(H)
      • P(c);OGATEB,XS(C)::QAB(J)
      • P(f);OGATEB,XP(D)::QAB(J)+R(H),XS(i)
      • P(c);OGATEB::QAB(J)
      • B(a);N_GUARD::S(C)
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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).