MESON Chess Problem Database

Problem Display
PID: 174215 (B7/1r1p2NK/4PP2/1P1k1p2/2pPp3/2PP4/6Q1/8 w - - 0 1)

Buchner, Richard

Promadas, 1930

B7/1r1p2NK/4PP2/1P1k1p2/2pPp3/2PP4/6Q1/8

#2

10 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...d6
      • 2.Bxb7#
  • Tries
    • 1.Qxe4+?
      • 1...Kd6
        • 2.Se8#
        • 2.Qe5#
      • 1...fxe4!
  • Keys
    • 1.Se8!
      • 1...dxe6+
        • 2.Bxb7#
      • 1...d6+
        • 2.Sc7#
      • 1...Kxe6
        • 2.Qg8#
      • 1...cxd3
        • 2.Qa2#
      • 1...f4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(f);P_PINS(H),SBLOCK::B(J),XR(e)
  • Tries
    • Try
      • Q(A);CHECK,XP(b)
      • Refutation
        • P(d);XQ(A)
  • Actual
    • S(H);
    • Vars
      • P(f);CHECK,SBLOCK,XP(F)::B(J),XR(e)
      • P(f);CHECK,SBLOCK::S(H)
      • K(c);N_SPINP(b),N_SPINR(e),OGATEB,S_FLIGHT,XP(F)::QAB(A)
      • P(a);OGATEB,XP(C)::QAB(A)
      • P(d);N_GUARD::QAB1(A),XP(b)
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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).