MESON Chess Problem Database

Problem Display
PID: 231623 (7Q/p3pBr1/PR5b/6p1/pp4P1/k7/8/1K4B1 w - - 0 1)

Doglioni, Ferenc

Zaszlonk, 1927

7Q/p3pBr1/PR5b/6p1/pp4P1/k7/8/1K4B1

#2

7 + 8

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg6
      • 2.Qa1#
      • 2.Qb2#
    • 1...Rxf7
      • 2.Qb2#
    • 1...Rh7
      • 2.Qa1#
      • 2.Qb2#
    • 1...Rg8
      • 2.Qa1#
      • 2.Qb2#
    • 1...b3
      • 2.Bc5#
  • Tries
    • 1.Be3?
      • threat
        • 2.Bc1#
      • 1...Rxf7
        • 2.Qb2#
      • 1...b3
        • 2.Bc5#
      • 1...e6!
    • 1.Be6?
      • 1...Rg6
        • 2.Qa1#
        • 2.Qb2#
      • 1...Rf7
        • 2.Qa1#
        • 2.Qb2#
      • 1...Rh7
        • 2.Qa1#
        • 2.Qb2#
      • 1...Rg8
        • 2.Qa1#
        • 2.Qb2#
      • 1...b3
        • 2.Bc5#
      • 1...axb6!
  • Keys
    • 1.Re6!
      • 1...Kb3
        • 2.Re3#
      • 1...Rxf7
        • 2.Qb2#
      • 1...Rg6
        • 2.Qb2#
      • 1...Rh7
        • 2.Qb2#
      • 1...Rg8
        • 2.Qb2#
      • 1...b3
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(h);OGATE,XB(F)::QAB1(G)
    • P(c);OGATEB::B(B)
  • Tries
    • Try
      • B(B);
      • Threat
        • B(B)
      • Vars
        • R(h);OGATE,XB(F)::QAB1(G)
        • P(c);OGATEB::B(B)
      • Refutation
        • P(g);
    • Try
      • B(F);
      • Vars
        • P(c);OGATEB::B(B)
      • Refutation
        • P(f);XR(E)
  • Actual
    • R(E);
    • Vars
      • K(a);P-FLIGHT::B(F)+R(E),DCHECK
      • R(h);OGATE,XB(F)::QAB1(G)
      • R(h);OGATE::QAB1(G)
      • P(c);OGATEB,SBLOCK::B(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).