MESON Chess Problem Database

Problem Display
PID: 174154 (1Kn5/1pQ1p3/b6N/r2p4/3pkb1R/5p1n/5P2/2NR4 w - - 0 1)

Buchner, Richard

Westfalische Allgemeine Volkszeitung, 1926

1Kn5/1pQ1p3/b6N/r2p4/3pkb1R/5p1n/5P2/2NR4

#2

7 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Re1#
    • 1...Sg1
      • 2.Rxf4#
      • 2.Qxf4#
    • 1...Sxf2
      • 2.Qxf4#
    • 1...Sg5
      • 2.Rxf4#
      • 2.Qxf4#
    • 1...Sd6
      • 2.Qxe7#
    • 1...b5
      • 2.Re1#
    • 1...e5
      • 2.Qh7#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qe5#
      • 1...Sd6
        • 2.Qxe7#
      • 1...e5
        • 2.Qxe5#
        • 2.Qh7#
      • 1...Bxd3!
  • Keys
    • 1.Sb3!
      • threat
        • 2.Rxd4#
      • 1...Sxf2
        • 2.Qxf4#
      • 1...Sd6
        • 2.Qxe7#
      • 1...Ra4
        • 2.Sc5#
      • 1...Bd3
        • 2.Sd2#
      • 1...d3
        • 2.Re1#
      • 1...e5
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(f);S_CUTB(h)::R(B)
    • S(b);N_GUARD,XP(C)::QAR1(F),XB(e)
    • S(k);N_PINQ(F)::QAR(F),XP(j)
    • P(i);S_CUTB(h)::R(B)
    • P(j);N_PINQ(F),SBLOCK::QAB(F)
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR1(F)
      • Vars
        • S(k);N_PINQ(F)::QAR(F),XP(j)
      • Refutation
        • B(h);XS(A)
  • Actual
    • S(A);
    • Threat
      • R1(B),XP(c)
    • Vars
      • S(b);N_GUARD,XP(C)::QAR1(F),XB(e)
      • S(k);N_PINQ(F)::QAR(F),XP(j)
      • R(f);N_GUARD::S(A)
      • B(h);SBLOCK::S(A)
      • P(c);SBLOCK,S_CUTB(h)::R(B)
      • P(j);N_PINQ(F),SBLOCK::QAB(F)
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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).