MESON Chess Problem Database

Problem Display
PID: 76038 (8/8/8/8/6K1/1N6/4p2Q/5k2 w - - 0 1)

Bryukhanov, Ivan Oleksandrovich

Troll, 2003

8/8/8/8/6K1/1N6/4p2Q/5k2

#2

3 + 2

5454 Near Snap 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Ke1
      • 2.Qg1#
    • 1...e1S
      • 2.Sd2#
    • 1...e1R
      • 2.Sd2#
  • Tries
    • 1.Kf3?
      • threat
        • 2.Qh1#
        • 2.Qf2#
      • 1...Ke1
        • 2.Qg1#
        • 2.Qh1#
        • 2.Qxe2#
      • 1...e1Q
        • 2.Qh1#
        • 2.Qg2#
      • 1...e1B
        • 2.Qh1#
        • 2.Qg2#
      • 1...e1S+!
    • 1.Qg2+?
      • 1...Ke1
        • 2.Qg1#
      • 1...Kxg2!
  • Keys
    • 1.Kh3!
      • 1...Ke1
        • 2.Qg1#
      • 1...e1Q
        • 2.Qg2#
      • 1...e1S
        • 2.Sd2#
      • 1...e1B
        • 2.Qg2#
      • 1...e1R
        • 2.Sd2#
        • 2.Qg2#

Anticipated by 66762(1971)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAR2(A)
    • P(b);SBLOCK::S(B)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);CHECK
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
  • Actual
    • K(C);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • P(b);SBLOCK::QAB1(A)
      • P(b);SBLOCK::S(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).