MESON Chess Problem Database

Problem Display
PID: 229066 (rk6/ppp1N3/8/3p4/8/p7/Q3B3/1K6 w - - 0 1)

Diskin, AC

64 Shakhmatnoe obozrenie, 1926

rk6/ppp1N3/8/3p4/8/p7/Q3B3/1K6

#2

4 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qg8#
  • Tries
    • 1.Sc6+?
      • 1...Kc8
        • 2.Bg4#
      • 1...bxc6!
  • Keys
    • 1.Ba6!
      • 1...bxa6
        • 2.Qb3#
      • 1...c5
        • 2.Qh2#
      • 1...c6
        • 2.Qh2#
      • 1...d4
        • 2.Qg8#
      • 1...b5
        • 2.Sc6#
      • 1...b6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::QAR(B)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(g);P-FLIGHT::B(C)
      • Refutation
        • P(d);XS(D)
  • Actual
    • B(C);
    • Vars
      • P(d);OGATEB,XB(C)::QAR(B)
      • P(e);OGATEB::QAB(B)
      • P(b);OGATE::QAR(B)
      • P(d);N_GUARD::S(D)
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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).