MESON Chess Problem Database

Problem Display
PID: 74851 (6r1/q1p2B2/2nr4/2nNkpB1/1N5R/8/2Q2Pb1/b5K1 w - - 0 1)

Hartong, Jan

Tijdschrift vd KNSB, 1938

6r1/q1p2B2/2nr4/2nNkpB1/1N5R/8/2Q2Pb1/b5K1

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Bf4#
    • 1...Sb3
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...Sa4
      • 2.Sd3#
    • 1...Sa6
      • 2.Sd3#
    • 1...Se6
      • 2.Bf6#
    • 1...Sb7
      • 2.Sd3#
    • 1...Sd7
      • 2.Sd3#
    • 1...Sd4
      • 2.Bf4#
      • 2.f4#
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qf4#
      • 1...f4
        • 2.Qxf4#
      • 1...Be4
        • 2.f4#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Se4
        • 2.Bf4#
      • 1...Se6
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(a);P_PINP(C),SBLOCK::B(G)
    • S(c);N_GUARD,P_PINP(C)::S(D)
    • S(c);N_GUARD,P_PINP(C)::S(D),XS(c)
    • S(c);P_PINP(C),S_CUTR(g)::B(G)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • P(e);::QAB1(B),XP(e)
      • B(b);P_PINB(G),SBLOCK::P(C)
      • S(c);N_GUARD,P_PINP(C)::S(D),XS(c)
      • S(c);P_PINP(C),SBLOCK::B(G)
      • S(c);P_PINP(C),S_CUTR(g)::B(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).