MESON Chess Problem Database

Problem Display
PID: 74392 (8/B6R/8/8/7P/5BNp/R5bk/3K4 w - - 0 1)

Marik, Josef V

Tijdschrift vd KNSB, 1938

8/B6R/8/8/7P/5BNp/R5bk/3K4

#2

7 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Bf2?
      • 1...Bf1
        • 2.Sxf1#
      • 1...Bh1
        • 2.Sf1#
      • 1...Bxf3+!
    • 1.Rf2?
      • 1...Kg1
        • 2.Rxg2#
      • 1...Kxg3!
  • Keys
    • 1.Ke2!
      • 1...Bf1+
        • 2.Sxf1#
      • 1...Bxf3+
        • 2.Kxf3#
      • 1...Kxg3
        • 2.Bb8#
      • 1...Bh1
        • 2.Sf1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);N_PINB(a)
      • Vars
        • B(a);N_GUARD::S(D),XB(a)
        • B(a);N_GUARD::S(D)
      • Refutation
        • B(a);CHECK,XB(C)
    • Try
      • R(B);
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::B(F)+R(B),DCHECK,XB(a)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT,XS(D)
  • Actual
    • K(A);N_PINB(a),S_FLIGHT
    • Vars
      • B(a);CHECK,N_GUARD::S(D),XB(a)
      • B(a);CHECK,XB(C)::R(B)+K(A),XB(a)
      • K(b);OGATEB,S_FLIGHT,XS(D)::B(F)
      • B(a);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).