MESON Chess Problem Database

Problem Display
PID: 194100 (8/5K2/p2p4/3k4/Q2P3R/8/3bPn2/3N4 w - - 0 1)

Westberg, CE

Svenska Dagbladet, 1917

8/5K2/p2p4/3k4/Q2P3R/8/3bPn2/3N4

#2

6 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sc3#
    • 1...Be1
      • 2.Se3#
    • 1...Bc3
      • 2.Sxc3#
      • 2.Se3#
    • 1...Be3
      • 2.Sc3#
      • 2.Sxe3#
    • 1...Bb4
      • 2.Se3#
    • 1...Bf4
      • 2.Sc3#
    • 1...Ba5
      • 2.Se3#
    • 1...Bg5
      • 2.Sc3#
    • 1...Bh6
      • 2.Sc3#
    • 1...Sxd1
      • 2.e4#
    • 1...Sh1
      • 2.e4#
    • 1...Sd3
      • 2.e4#
    • 1...Sh3
      • 2.e4#
    • 1...a5
      • 2.Qb5#
  • Tries
    • 1.Rh5+?
      • 1...Bg5
        • 2.Sc3#
      • 1...Ke4!
  • Keys
    • 1.Rf4!
      • 1...Bxf4
        • 2.Sc3#
      • 1...Sxd1
        • 2.e4#
      • 1...Bb4
        • 2.Se3#
      • 1...Bc1
        • 2.Sc3#
      • 1...Be1
        • 2.Se3#
      • 1...Bc3
        • 2.Sxc3#
        • 2.Se3#
      • 1...Be3
        • 2.Sc3#
        • 2.Sxe3#
      • 1...Ba5
        • 2.Se3#
      • 1...Sh1
        • 2.e4#
      • 1...Sd3
        • 2.e4#
      • 1...Sh3
        • 2.e4#
      • 1...Se4
        • 2.Rf5#
      • 1...Sg4
        • 2.e4#
      • 1...a5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::S(A)
    • S(b);N_GUARD,XS(A)::P(B)
    • S(b);N_GUARD::P(B)
    • P(d);N_GUARD::QAR2(C)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • B(a);P_SPINB(a)::S(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(E);
    • Vars
      • B(a);N_GUARD,XR(E)::S(A)
      • S(b);N_GUARD,XS(A)::P(B)
      • B(a);N_GUARD::S(A)
      • S(b);N_GUARD::P(B)
      • S(b);SBLOCK::R(E)
      • P(d);N_GUARD::QAR2(C)
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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).