MESON Chess Problem Database

Problem Display
PID: 174218 (b4R1K/3p4/3BB1p1/5p1p/pp2k1nR/2P1p3/4P3/Qr5r w - - 0 1)

Buchner, Richard

Dresdner Volkszeitung, 1926

b4R1K/3p4/3BB1p1/5p1p/pp2k1nR/2P1p3/4P3/Qr5r

#2

8 + 12

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Qxh1#
    • 1...Rb3
      • 2.Qxh1#
    • 1...Rh2
      • 2.Qxb1#
    • 1...Rh3
      • 2.Qxb1#
    • 1...Rxh4
      • 2.Qxb1#
    • 1...b3
      • 2.Qxa4#
    • 1...f4
      • 2.Rxf4#
  • Tries
    • 1.Bc4?
      • threat
        • 2.Re8#
      • 1...Rxh4
        • 2.Qxb1#
      • 1...Bd5
        • 2.Bd3#
      • 1...f4
        • 2.Rxf4#
      • 1...bxc3!
    • 1.Rxg4+?
      • 1...fxg4
        • 2.Rf4#
      • 1...f4
        • 2.Rgxf4#
        • 2.Rfxf4#
      • 1...hxg4+!
  • Keys
    • 1.Bb3!
      • threat
        • 2.Re8#
      • 1...Rxb3
        • 2.Qxh1#
      • 1...Rxh4
        • 2.Qxb1#
      • 1...axb3
        • 2.Qxa8#
      • 1...bxc3
        • 2.Qxa4#
      • 1...Bd5
        • 2.Bc2#
      • 1...f4
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(a);OGATE::QAB(A),XR(b)
    • R(b);N_GUARD::QAB(A),XR(a)
    • R(b);N_GUARD,N_SPINS(g),XR(D)::QAB(A),XR(a)
    • P(e);OGATEB::QAR(A),XP(d)
    • P(h);N_SPINS(g),OGATE::R1(G),XP(h)
  • Tries
    • Try
      • B(F);
      • Threat
        • R(G)
      • Vars
        • R(b);N_GUARD,N_SPINS(g),XR(D)::QAB(A),XR(a)
        • B(l);SBLOCK::B(F)
        • P(h);N_SPINS(g),OGATE::R1(G),XP(h)
      • Refutation
        • P(e);XP(C)
    • Try
      • R(D);CHECK,XS(g)
      • Vars
        • P(h);OGATE,XR(D)::R1(G)
      • Refutation
        • P(i);CHECK,XR(D)
  • Actual
    • B(F);
    • Threat
      • R(G)
    • Vars
      • R(a);OGATE,XB(F)::QAB(A),XR(b)
      • R(b);N_GUARD,N_SPINS(g),XR(D)::QAB(A),XR(a)
      • P(d);OGATE,XB(F)::QAB(A),XB(l)
      • P(e);OGATEB,XP(C)::QAR(A),XP(d)
      • B(l);SBLOCK::B(F)
      • P(h);N_SPINS(g),OGATE::R1(G),XP(h)
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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).