MESON Chess Problem Database

Problem Display
PID: 174170 (7B/3Kn3/8/6R1/4k3/4p1P1/4Q3/1b2n3 w - - 0 1)

Buchner, Richard

Frankische Tagespost, 1928

7B/3Kn3/8/6R1/4k3/4p1P1/4Q3/1b2n3

#2

5 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Qg4#
    • 1...Sd3
      • 2.Qg2#
  • Tries
    • 1.Rg4+?
      • 1...Kd5
        • 2.Qc4#
        • 2.Qb5#
      • 1...Kf5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Re5#
      • 1...e2
        • 2.Qxe2#
      • 1...Sf3
        • 2.Qxb1#
      • 1...Bd3
        • 2.Qg4#
      • 1...Sd3
        • 2.Qh1#
      • 1...Sf5
        • 2.Rg4#
      • 1...Sc6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR2(A)
    • S(b);N_GUARD,SBLOCK::QAB(A)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT
  • Actual
    • Q(A);N_PINP(c)
    • Threat
      • R1(C)
    • Vars
      • P(c);OGATEB::QAR2(A),XP(c)
      • S(b);N_GUARD,SBLOCK::QAB(A),XB(a)
      • B(a);SBLOCK::QAR2(A)
      • S(b);OGATE,SBLOCK::QAB(A)
      • S(e);SBLOCK::R(C)
      • S(e);N_GUARD::QAB1(A)
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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).