MESON Chess Problem Database

Problem Display
PID: 158051 (8/8/5K2/4Q3/6Bk/6Rq/8/6n1 w - - 0 1)

Antipov, Viacheslav Pavlovich

Sa ogneupory, 1986

8/8/5K2/4Q3/6Bk/6Rq/8/6n1

#2

4 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg3
      • 2.Qg5#
      • 2.Qh5#
  • Tries
    • 1.Rxh3+?
      • 1...Kxg4
        • 2.Qg3#
        • 2.Qf5#
      • 1...Sxh3!
  • Keys
    • 1.Qf4!
      • 1...Qxg4
        • 2.Qxg4#
      • 1...Qxg3
        • 2.Qg5#
      • 1...Qf1
        • 2.Bf3#
      • 1...Qg2
        • 2.Bd1#
        • 2.Be2#
        • 2.Bf3#
      • 1...Qh1
        • 2.Bd1#
        • 2.Be2#
        • 2.Bf3#
      • 1...Qh2
        • 2.Bd1#
        • 2.Be2#
        • 2.Bf3#
      • 1...Se2
        • 2.Rxh3#
      • 1...Sf3
        • 2.Rxh3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK,XQ(b)
      • Refutation
        • S(a);XR(A)
  • Actual
    • Q(C);
    • Vars
      • Q(b);OGATE,P_SPINQ(b),XB(B)::QAR1(C),XQ(b)
      • Q(b);SBLOCK,XR(A)::QAB1(C)
      • Q(b);N_GUARD,P_PINQ(C)::QAR(C)+B(B)
      • S(a);N_GUARD::R1(A),XQ(b)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).