MESON Chess Problem Database

Problem Display
PID: 112940 (1N3Q1K/1pNbrB2/3k4/8/1PRn1P2/5p2/pB6/8 w - - 0 1)

Dombrovskis, Alfreds A

Fiziska Kultura, 1953

1N3Q1K/1pNbrB2/3k4/8/1PRn1P2/5p2/pB6/8

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Se8#
    • 1...Bg4
      • 2.Se8#
    • 1...Bf5
      • 2.Se8#
    • 1...Bc8
      • 2.Se8#
    • 1...Be8
      • 2.Sxe8#
    • 1...Sc2
      • 2.Be5#
    • 1...Se2
      • 2.Be5#
    • 1...Sb3
      • 2.Be5#
    • 1...Sb5
      • 2.Be5#
    • 1...Sf5
      • 2.Be5#
    • 1...Sc6
      • 2.Sb5#
    • 1...Se6
      • 2.Be5#
  • Tries
    • 1.Sb5+?
      • 1...Sxb5
        • 2.Be5#
      • 1...Bxb5!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Rxd4#
      • 1...Re8+
        • 2.Sxe8#
      • 1...Re4
        • 2.Qxd7#
      • 1...Re5
        • 2.Qxd7#
      • 1...Sc2
        • 2.Sb5#
      • 1...Se2
        • 2.Sb5#
      • 1...Sb3
        • 2.Sb5#
      • 1...Sb5
        • 2.Sxb5#
      • 1...Sf5
        • 2.Sb5#
      • 1...Sc6
        • 2.Sb5#
      • 1...Se6
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(f);N_GUARD::S(E)
    • B(f);N_GUARD::S(E),XB(f)
    • S(c);OGATE::B(A)
    • S(c);N_GUARD,S_CUTB(f)::S(E)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • S(c);OGATE,XS(E)::B(A)
      • Refutation
        • B(f);XS(E)
  • Actual
    • Q(H);N_PINR(g),P_PINB(f)
    • Threat
      • R(C),XS(c)
    • Vars
      • R(g);CHECK,N_GUARD::S(E),XR(g)
      • R(g);N_GUARD::QAR1(H),XB(f)
      • S(c);N_GUARD::S(E)
      • S(c);N_GUARD::S(E),XS(c)
      • S(c);OGATE::B(A)
HTML5 logo

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).