MESON Chess Problem Database

Problem Display
PID: 103685 (5Qn1/2p3K1/6p1/4k1N1/2r2NP1/B1P5/8/8 w - - 0 1)

Planck, Charles

St. John Globe, 1888

5Qn1/2p3K1/6p1/4k1N1/2r2NP1/B1P5/8/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Sf3#
    • 1...Rxf4
      • 2.Qc5#
    • 1...Sf6
      • 2.Qxf6#
    • 1...Sh6
      • 2.Qf6#
    • 1...Se7
      • 2.Qf6#
    • 1...c5
      • 2.Qb8#
    • 1...c6
      • 2.Bd6#
      • 2.Qd6#
      • 2.Qb8#
  • Keys
    • 1.Bb2!
      • 1...Rxc3
        • 2.Bxc3#
      • 1...Rxf4
        • 2.Qc5#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Se7
        • 2.Qf6#
      • 1...Ra4
        • 2.c4#
      • 1...Rb4
        • 2.cxb4#
      • 1...Rd4
        • 2.cxd4#
      • 1...Re4
        • 2.Sf3#
      • 1...Rc5
        • 2.c4#
      • 1...Rc6
        • 2.c4#
      • 1...Sh6
        • 2.Qf6#
      • 1...c5
        • 2.Qb8#
      • 1...c6
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::S(E)
    • R(a);N_GUARD,SBLOCK,XS(C)::QAR2(G)
    • S(e);N_GUARD::QAB1(G),XS(e)
    • S(e);N_GUARD::QAB1(G)
    • P(d);OGATEB::QAB(G)
  • Actual
    • B(A);
    • Vars
      • R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
      • R(a);N_GUARD,SBLOCK,XS(C)::QAR2(G)
      • S(e);N_GUARD::QAB1(G),XS(e)
      • S(e);N_GUARD::QAB1(G)
      • R(a);OGATE::B(A)+P(B)
      • R(a);OGATE::B(A)+P(B),XR(a)
      • R(a);OGATE::P(B),XR(a)
      • R(a);SBLOCK::S(E)
      • P(d);OGATEB::QAB(G)
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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).