MESON Chess Problem Database

Problem Display
PID: 202313 (8/1Q6/1R6/B7/K1Np4/8/p1k1pppp/r3rbbq w - - 0 1)

Guidelli, Giorgio

Good Companions, 1923

8/1Q6/1R6/B7/K1Np4/8/p1k1pppp/r3rbbq

#2

5 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se3+?
      • 1...Kc1
        • 2.Rc6#
        • 2.Qc6#
        • 2.Qc8#
        • 2.Qc7#
      • 1...Kd3
        • 2.Rb3#
      • 1...dxe3!
  • Keys
    • 1.Rc6!
      • 1...Kc1
        • 2.Se3#
      • 1...Kd1
        • 2.Sb2#
      • 1...Kd3
        • 2.Qh7#
      • 1...Rab1
        • 2.Sb2#
      • 1...Rac1
        • 2.Qb3#
      • 1...Rad1
        • 2.Se5#
      • 1...Reb1
        • 2.Sb2#
      • 1...Rec1
        • 2.Qb3#
      • 1...Red1
        • 2.Se5#
      • 1...d3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(g);S_FLIGHT::R(D)
      • Refutation
        • P(l);XS(B)
  • Actual
    • R(D);
    • Vars
      • K(g);P-FLIGHT::R(D)+S(B)
      • K(g);S_FLIGHT::S(B)
      • K(g);S_FLIGHT::QAB(E)
      • R(a);SBLOCK::R(D)+S(B)
      • R(a);SBLOCK::QAB1(E)
      • R(b);SBLOCK::R(D)+S(B)
      • R(b);SBLOCK::QAB1(E)
      • P(l);SBLOCK::R(D)+S(B),DCHECK
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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).