Problem Display
PID: 120011 (4k3/1N1ppp1N/3p1b2/6p1/2B3Q1/8/8/7K w - - 0 1)

Smutny, Jan

Tidskrift for Schack, 1909

4k3/1N1ppp1N/3p1b2/6p1/2B3Q1/8/8/7K

#2

5 + 7


6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION


  • SOUND
  • Tries
    • 1.Bb5?
      • threat
        • 2.Bxd7#
        • 2.Qxd7#
      • 1...e5
        • 2.Qxd7#
      • 1...e6!
  • Keys
    • 1.Be6!
      • threat
        • 2.Bxd7#
      • 1...dxe6
        • 2.Qa4#
      • 1...fxe6
        • 2.Qh5#

This anticipates 120012(1951)

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);P_PINP(d)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::QAB1(C),XP(d)
      • Refutation
        • P(e);
  • Actual
    • B(B);
    • Threat
      • B(B),XP(d)
    • Vars
      • P(d);OGATEB,XB(B)::QAB(C)
      • P(f);OGATEB,XB(B)::QAB(C)


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).