MESON Chess Problem Database

Problem Display
PID: 107745 (8/8/3p3n/3p2B1/3P4/4pkNp/5N1R/1Q5K w - - 0 1)

Bylevski, Aleksandr

Boletim da UBP, 1992

8/8/3p3n/3p2B1/3P4/4pkNp/5N1R/1Q5K

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Qd3#
      • 2.Qb3#
  • Tries
    • 1.Qe4+?
      • 1...Kxg3
        • 2.Bh4#
        • 2.Qxe3#
        • 2.Qf4#
      • 1...dxe4!
    • 1.Qf5+?
      • 1...Kxg3
        • 2.Rxh3#
        • 2.Qxh3#
        • 2.Qf4#
      • 1...Sxf5!
    • 1.Qd1+?
      • 1...e2
        • 2.Qb3#
        • 2.Qd3#
      • 1...Kxg3!
  • Keys
    • 1.Rxh3!
      • 1...Kxf2
        • 2.Qf1#
      • 1...exf2
        • 2.Qd1#
      • 1...Sg4
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sf7
        • 2.Qf5#
      • 1...Sg8
        • 2.Qf5#
      • 1...e2
        • 2.Sge4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • P(d);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • S(f);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT,XS(E)
  • Actual
    • R(D);XP(c)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XS(C)::QAR1(A)
      • P(a);N_GUARD,SBLOCK,XS(C)::QAB(A)
      • S(f);N_GUARD::QAR2(A)
      • S(f);N_GUARD::QAR2(A),XS(f)
      • P(a);SBLOCK::R(D)+S(E)
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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).